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Zuo TT, Zhu J, Gao F, Wang JS, Song QH, Wang HY, Sun L, Zhang WQ, Kong DJ, Guo YS, Yang JB, Wei F, Wang Q, Jin HY, Ma SC. Innovative accumulative risk assessment strategy of co-exposure of As and Pb in medical earthworms based on in vivo-in vitro correlation. ENVIRONMENT INTERNATIONAL 2023; 175:107933. [PMID: 37088008 DOI: 10.1016/j.envint.2023.107933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Recent studies on risks assessment of heavy metal(loid) are usually based on their total concentrations. Nevertheless, such an analysis does not assess their real amounts absorbed by human body. To scientifically assess the health risks, in this study medical earthworms were analyzed for relative bioavailability (RBA) of arsenic (As) and lead (Pb) using a multiple gavage mouse model with liver, kidneys, brain, and leg bones as biomarkers for the first time. Metal(loid) bioaccessibility was determined using in vitro physiologically based extraction (PBET) assay. We are the first to develop a novel accumulative health risk assessment strategy by combinational analyzing bioavailability of heavy metal(loid) levels to calculate target organ toxicity dose (TTD) modification of the HI and total cancer risk (TCR), which has capacity to evaluate the health risks of co-exposure of Pb and As in medical earthworms. As a result, As-RBA ranged from 7.2% to 45.1%, and Pb-RBA ranged from 16.1% to 49.8%. Additionally, As and Pb bioaccessibility varied from 6.7% to 48.3% and 7.8% to 52.5%, respectively. Moreover, strong in vivo-in vitro correlations (IVIVCs) were observed between metal-RBA and bioaccessibility, indicating the robustness of the in vitro PBET assay to predict metal-RBA in medical earthworms. The refined accumulative assessment strategy revealed that when adjusted by heavy metal(loid) bioavailability, the TTD modification of HI method typically exhibited an acceptable health risk caused by the co-exposure of Pb and As for cardiovascular, hematological, neurological, and renal system. The TCR levels associated with exposure to Pb and As due to the ingestion of medical earthworms were also acceptable after adjustment by bioavailability. Collectively, our innovation on accumulative risk assessment based on in vivo-in vitro correlation provides a novel approach engaging in assessing the risks due to co-exposure of As and Pb in medical earthworms.
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Affiliation(s)
- Tian-Tian Zuo
- National Institutes for Food and Drug Control, Beijing 102629, China; WHO Collaborating Center for Herbal Medicine (CHN-139), Beijing, China
| | - Jia Zhu
- Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Fei Gao
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Ji-Shuang Wang
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Qing-Hui Song
- Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Hai-Yan Wang
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Lei Sun
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Wan-Qiang Zhang
- Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - De-Juan Kong
- Tongliao Market Detection and Testing Center, Tongliao 028000, China
| | - Yuan-Sheng Guo
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Jian-Bo Yang
- National Institutes for Food and Drug Control, Beijing 102629, China; WHO Collaborating Center for Herbal Medicine (CHN-139), Beijing, China
| | - Feng Wei
- National Institutes for Food and Drug Control, Beijing 102629, China; WHO Collaborating Center for Herbal Medicine (CHN-139), Beijing, China
| | - Qi Wang
- National Institutes for Food and Drug Control, Beijing 102629, China; WHO Collaborating Center for Herbal Medicine (CHN-139), Beijing, China.
| | - Hong-Yu Jin
- National Institutes for Food and Drug Control, Beijing 102629, China; WHO Collaborating Center for Herbal Medicine (CHN-139), Beijing, China.
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control, Beijing 102629, China; WHO Collaborating Center for Herbal Medicine (CHN-139), Beijing, China.
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Cui S, Wang Z, Li X, Wang H, Wang H, Chen W. A comprehensive assessment of heavy metal(loid) contamination in leafy vegetables grown in two mining areas in Yunnan, China-a focus on bioaccumulation of cadmium in Malabar spinach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:14959-14974. [PMID: 36161572 DOI: 10.1007/s11356-022-23017-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Contamination of leafy vegetables grown in heavy metal(loid)-polluted mining areas pose serious health risks. This study aimed to explore the heavy metal(loid) contamination of leafy vegetables near two mining areas, by collecting samples from 14 different leafy vegetable species in Yunnan Province, China. The lead (Pb), cadmium (Cd), arsenic (As), and copper (Cu) contents of the samples were determined, and risks to human health were calculated using the hazard quotient and hazard index (HI). Moreover, Malabar spinach was identified as a leafy vegetable that exhibits low accumulation of heavy metal(loid)s. The accumulation capacity of different Malabar spinach varieties was verified, and a Cd soil safety threshold was determined using a pot experiment. Overall, Pb and Cd were the main soil and vegetable contaminants found in both study sites. The HI values for all leafy vegetables, apart from Malabar spinach, were greater than 1, indicating the presence of risks to human health; moreover, the health risks were greater for children than adults. The Malabar spinach pot experiment results showed that only some Cd forms exceeded China's maximum permissible standards. Furthermore, Malabar spinach varieties A (instant Malabar spinach), C (extra-large leaf green vine Malabar spinach), and F (large leaf Malabar spinach) displayed the lowest Cd accumulation. We calculated Cd total and bioavailable soil safety thresholds of 4.75 and 0.77 mg kg-1, respectively. However, further research is required to validate soil heavy metal safety thresholds for different vegetables. Ultimately, the heavy metal(loid) contamination of leafy vegetables described here was more serious than anticipated. Finally, the results of this study can inform residents living near these mining areas of a low-risk leafy vegetable, which will reduce the harm caused by heavy metal(loid) contamination in the area.
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Affiliation(s)
- Suping Cui
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zhongzhen Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xingjian Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Hongbin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Haijuan Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Wenjie Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
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Naz F, Hamayun M, Rauf M, Arif M, Afzal Khan S, Ud-Din J, Gul H, Hussain A, Iqbal A, Kim HY, Lee IJ. Molecular mechanism of Cu metal and drought stress resistance triggered by Porostereum spadiceum AGH786 in Solanum lycopersicum L. FRONTIERS IN PLANT SCIENCE 2022; 13:1029836. [PMID: 36438115 PMCID: PMC9685319 DOI: 10.3389/fpls.2022.1029836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Rapid industrialization and global warming have threatened the plants with multiple abiotic stresses, such as heavy metals and drought stress. For crop cultivation, the conventional approach of cleaning the soils by excavation is very costly and not feasible for large scale. Establishing toxin-free and drought-resistant crops is a major challenge in the environment under natural and anthropogenic pressure. In the past decades, copper contamination of agricultural land has become an emerging concern. For dry land reclamation, several new strategies, including bioremediation (phytoremediation and microbial remediation), have been used. Owing to the potential of Cu hyperaccumulators, the current project aims to enhance the drought tolerance and the phytoremediation potential of Solanum lycopersicum L. with the inoculation of copper and 12% polyethylene glycol (PEG)-induced drought stress-tolerant endophytic fungus Porostereum spadiceum AGH786 under the combined stress of copper heavy metal and PEG-induced drought stress. When S. lycopersicum L. was watered with individual stress of copper (Cu) concentration (400 ppm) in the form of copper sulfate (CuSO4.5H2O), 12% PEG-induced drought stress and the combined stress of both negatively affected the growth attributes, hormonal, metabolic, and antioxidant potential, compared with control. However, the multistress-resistant AGH786 endophytic fungus ameliorated the multistress tolerance response in S. lycopersicum L. by positively affecting the growth attributes, hormonal, metabolic, and antioxidant potential, and by restricting the root-to-shoot translocation of Cu and inducing its sequestration in the root tissues of affected plants. AGH786-associated plants exhibited a reduction in the severity of copper (Cu) and drought stress, with higher levels of SlCOPT (Cu transporters) and SlMT (metallothionine) gene expressions in root and shoot tissues, indicating that AGH786 contributed to resistance to copper metal toxicity and drought stress in the host S. lycopersicum L.
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Affiliation(s)
- Falak Naz
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Muhammad Hamayun
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Mamoona Rauf
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Muhammad Arif
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Sumera Afzal Khan
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Jalal Ud-Din
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Humaira Gul
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Anwar Hussain
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Amjad Iqbal
- Department of Food Technology, Abdul Wali Khan University, Mardan, Pakistan
| | - Ho-Youn Kim
- Smart Farm Research Center, Korea Institute of Science and Technology, Gangneung, South Korea
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
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Syed S, Buddolla V, Lian B. Lead oxalates in some Chinese leafy vegetable cultivation: their biomineralization and remediation by oxalate degrading Streptomyces sp. 3 Biotech 2022; 12:284. [PMID: 36276453 PMCID: PMC9485381 DOI: 10.1007/s13205-022-03353-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 09/08/2022] [Indexed: 11/01/2022] Open
Abstract
Heavy metal contamination is a global threat with far-reaching effects for both human health and the environment. Biological agents, such as plants and microorganisms, provide uncomplicated and eco-friendly ways of removing toxic metals; thus, they are regarded as successful and alternative tools. In this study, we evaluated the ability of Streptomyces NJ10 (SN10), an oxalotrophic bacterium with outstanding oxalate metabolizing potential, to convert toxic lead oxalate (PbOx) into lead carbonate (PbCO3). SN10 was therefore used to determine the reduction of toxicity of Chinese leafy vegetables grown in the presence of PbOx in the soil. When compared to control, SN10 treated pots showed improved plant growth characters, i.e. shoot length (5.85 ± 0.56 cm), average leaf area (5.5 ± 0.44 cm2) and root length (7.2 ± 0.45 cm), as established by the plant growth attributes and the results obtained are statistically significant (at P ≤ 0.05) (for a period of 30 days). Furthermore, X-ray diffraction (XRD) and Scanning Electronic Microscopy-Energy-Dispersive X-ray Spectroscopy (SEM-EDS) studies revealed that PbOx was successfully transformed into a less toxic, water-insoluble precipitate of Pb-bearing carbonate, Phosgenite. The results provided a new idea for the biotransformation and toxicity mitigation of Pb contamination in soil. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03353-6.
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Affiliation(s)
- Shameer Syed
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, No. 1, Wen Yuan Road, Qi Xia District, Nanjing, 210023 Jiangsu Province China
- Dr. Buddolla’s Institute of Life Sciences, Tirupati, Andhra Pradesh 517501 India
| | - Viswanath Buddolla
- Dr. Buddolla’s Institute of Life Sciences, Tirupati, Andhra Pradesh 517501 India
| | - Bin Lian
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, No. 1, Wen Yuan Road, Qi Xia District, Nanjing, 210023 Jiangsu Province China
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Sharma VK, Parmar S, Tang W, Hu H, White JF, Li H. Effects of fungal seed endophyte FXZ2 on Dysphania ambrosioides Zn/Cd tolerance and accumulation. Front Microbiol 2022; 13:995830. [PMID: 36212824 PMCID: PMC9532605 DOI: 10.3389/fmicb.2022.995830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Metal-induced oxidative stress in contaminated soils affects plant growth. In the present study, we evaluated the role of seed endophyte FXZ2 on Dysphania ambrosioides Zn/Cd tolerance and accumulation. A series of pot experiments were conducted under variable Zn (500, 1,000, and 1,500 mg kg–1) and Cd (5, 15, 30, and 60 mg kg–1). The results demonstrated that FXZ2-inoculation significantly enhanced the growth of D. ambrosioides and improved its chlorophyll and GSH content. In the rhizosphere, FXZ2 inoculation changed the chemical speciation of Zn/Cd and thus affected their uptake and accumulation in host plants. The exchangeable and carbonate-bound fractions (F1 + F2) of Zn decreased in the rhizosphere of FXZ2-inoculated plants (E+) as compared to non-inoculated plants (E-) under Zn stress (500 and 1,000 mg kg–1), correspondingly, Zn in the shoots of E+ decreased (p < 0.05). However, at Cd stress (30 and 60 mg kg–1), the F1 + F2 fractions of Cd in E+ rhizospheric soils increased; subsequently, Cd in the shoots of E+ increased (p < 0.05). FXZ2 could exogenously secrete phytohormones IAA, GA, and JA. The study suggests that seed endophyte FXZ2 can increase Zn/Cd tolerance of host plant by altering Zn/Cd speciation in rhizospheric soils, as well as exogenous production of phytohormones to promote growth, lowering oxidative damage while enhancing antioxidant properties. For Zn/Cd accumulation, it has opposite effects: Zn uptake in E+ plants was significantly (p < 0.05) decreased, while Cd accumulation in E+ plants was significantly (p < 0.05) increased. Thus, FXZ2 has excellent application prospects in Cd phytoextraction and decreasing Zn toxicity in agriculturally important crops.
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Affiliation(s)
- Vijay K. Sharma
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Shobhika Parmar
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Wenting Tang
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Haiyan Hu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
| | - James F. White
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
| | - Haiyan Li
- Medical School, Kunming University of Science and Technology, Kunming, China
- *Correspondence: Haiyan Li,
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Xue X, Liu G, Tang Q, Shi H, Wu D, Jin C, Zhao H, Wei Y, Zhang Y. Multi-elements characteristic and potential risk of heavy metals in MOUTAN CORTEX from Anhui Province, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY : IJEST 2022; 20:7829-7842. [PMID: 35968156 PMCID: PMC9361998 DOI: 10.1007/s13762-022-04402-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 04/05/2022] [Accepted: 07/11/2022] [Indexed: 06/12/2023]
Abstract
To ensure the quality and safety of herbs, the content of 54 elements in MOUTAN CORTEX (MC) was determined by the ICP-AES and ICP-MS, and the health risks of Cu, As, Cd, Pb, Hg and rare earth elements (REEs) were assessed. These herbs were collected from 5 producing areas in Anhui Province, China, namely Wuhu, Tongling, Bozhou, Xuancheng and Chizhou. The multi-elements fingerprint identification of MC in Anhui Province was established. The total amount of macro-elements from Wuhu and Tongling is significantly lower than Bozhou. Among all MC from 5 producing areas, the highest content is Ca. Except for Bozhou, the content of macro-elements and REES in the other 4 origins of MC is from highest to lowest: Ca > K > Mg > Al > Fe > Na and Ce > La > Nd > Y > Pr > Er > Yb > Eu > Ho > Tb > Tm > Lu. The chemical forms of Cd in MC from Bozhou with the highest percentage were PH2O of high toxicity and migration, while the other 4 regions were PNaCl of low activity and mobility. There was a great difference in the content of inorganic elements and chemical forms of Cd between the MC produced from the plain (Bozhou) and the hilly areas (Wuhu, Tongling, Chizhou and Xuancheng). Except for Cd, the content of Cu, As, Pb and Hg in MC did not exceed the limit. The results of PTWIFact and ADI for Cd and REEs showed that MC herbs did not pose a risk to human health. Supplementary Information The online version contains supplementary material available at 10.1007/s13762-022-04402-6.
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Affiliation(s)
- X. Xue
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026 Anhui China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - G. Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026 Anhui China
| | - Q. Tang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
| | - H. Shi
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
| | - D. Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - C. Jin
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - H. Zhao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - Y. Wei
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026 Anhui China
| | - Y. Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
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Wang T, Wang H, Feng K, Li H, Wang H. Soil bacteria around a derelict tailings pile with different metal pollution gradients: community composition, metal tolerance and influencing factors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:60616-60630. [PMID: 35426553 DOI: 10.1007/s11356-022-20142-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
Bacteria play a vital role in ecological processes of soil contaminated by heavy metals. Here, soil sampling was carried out around a tailings pile contaminated to different degrees by cadmium (Cd), lead (Pb) and arsenic (As). The bacteria in the soil were cultured, separated and purified on Luria-Bertani medium, and the changes in bacterial communities in soils with different pollution levels were analysed with 16S rRNA sequencing. Bacillus pacificus strain MZ520364 was found to be highly tolerant to Cd, Pb and As, and single-metal and multimetal tolerance experiments were further conducted with this strain. The results obtained from alpha diversity and operational taxonomic unit (OTU) statistical analyses showed a significant difference in bacterial composition among soils with different metal pollution levels, and the highest bacterial diversity was found at the most severely polluted site. Evidence from variance partitioning analysis (VPA) and the Spearman correlation heatmap analysis showed that the leading factors affecting bacterial community composition were cation exchange content (CEC), pH, total Zn, total As, and available As concentrations in soil. Additionally, in the single-metal treatments, B. pacificus MZ520364 could tolerate 600 mg/L Cd2+, 1000 mg/L Pb2+ or 700 mg/L As3+. When Cd, Pb and As coexisted, the best growth of B. pacificus MZ520364 was present at 120 mg/L Cd2+, 200 mg/L Pb2+ and 150 mg/L As3+. The effect of Cd, Pb and As on the growth of the strain followed the order of Cd > As > Pb, and the heavy metal combination showed more toxicity than single metals. In summary, our results revealed the ecological impact of soil physicochemical properties on the diversity and richness of soil bacterial communities and suggested that B. pacificus MZ520364 may be used for the remediation of Cd-Pb-As co-contaminated soil.
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Affiliation(s)
- Tian Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Haijuan Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, China
| | - Kaiping Feng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Haiyan Li
- School of Medicine, Kunming University of Science and Technology, Kunming, 650500, China
| | - Hongbin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, China.
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Zuo TT, Luo FY, He HZ, Jin HY, Sun L, Xing SX, Li B, Gao F, Ma SC, He LC. Novel bioavailability-based risk assessment of Cd in earthworms and leeches utilizing in vitro digestion/Caco-2 and MDCK cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:26513-26523. [PMID: 34859344 DOI: 10.1007/s11356-021-16678-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 09/19/2021] [Indexed: 05/27/2023]
Abstract
In the present study, the oral bioavailability of cadmium (Cd) in earthworms and leeches was investigated through in vitro physiologically based extraction test (PBET) digestion/Caco2 and MDKC cell models. We are the first to create an innovative assessment strategy which has capacity to offer a more precise evaluation of Cd-associated health risks in traditional animal medicines (TAMs), by combinational usage of bioavailable Cd levels, the duration and frequency of the exposure to TAMs obtained by questionnaire data, as well as safety factor of TAMs. Our data showed that the percentage of bioavailability for Caco-2 cells in earthworms and leeches ranged from 3.29 to 14.17% and 4.32 to 12.61%, respectively. The percentage of bioavailability of MDCK cells in earthworms and leeches ranged from 4.83 to 15.74% and 6.53 to 15.04%, respectively. After adjusting by the bioavailability of Cd to target hazard quotient (THQ), excitingly, our findings manifested that the health risks induced by the ingestion of earthworms and leeches were acceptable in the clinic. Our key findings suggest that bioavailability characterization cannot be ruled out and health risks should be assessed on the basis of the bioavailable Cd levels rather than total levels. Our novel strategy provides insight into the bio-accumulation of Cd in organisms as well as a more realistic and accurate assessment of Cd-associated health risks in TAMs, with the main purpose of improving public health by scientifically using TAMs.
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Affiliation(s)
- Tian-Tian Zuo
- School of Pharmacy, Xi' an Jiaotong University, Xi'an, 710061, China
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China
| | - Fei-Ya Luo
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China
| | - Huai-Zhen He
- School of Pharmacy, Xi' an Jiaotong University, Xi'an, 710061, China
| | - Hong-Yu Jin
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China
| | - Lei Sun
- School of Pharmacy, Xi' an Jiaotong University, Xi'an, 710061, China
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China
| | - Shu-Xia Xing
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China
| | - Bo Li
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China
| | - Fei Gao
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control, No. 31 Huatuo Road, Daxing District, Beijing, 100050, China.
| | - Lang-Chong He
- School of Pharmacy, Xi' an Jiaotong University, Xi'an, 710061, China.
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Shen X, Dai M, Yang J, Sun L, Tan X, Peng C, Ali I, Naz I. A critical review on the phytoremediation of heavy metals from environment: Performance and challenges. CHEMOSPHERE 2022; 291:132979. [PMID: 34801572 DOI: 10.1016/j.chemosphere.2021.132979] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/03/2021] [Accepted: 11/17/2021] [Indexed: 05/22/2023]
Abstract
Phytoremediation is an effective, green and economical technique. Different types of phytoremediation methods can be used for the reduction of heavy metal contaminations, such as phytoextraction, phytovolatilization, phytostabilization and phytofiltration. The biomass of plants and the bioavailability of heavy metals in soil are the key factors affecting the efficiency of phytoremediation. It's worth noting that the low remediation efficiency and the lack of effective disposal methods for contaminated biomass have limited its development and application. At present, biological, physical, chemical, agronomic and genetic approaches have been used to enhance phytoremediation. Disposal methods of contaminated biomass usually include pyrolysis, incineration, composting and compaction. They are effective, but are costly and have security problems. Improper disposal of contaminated biomass can lead to leaching of heavy metals. The leaching possibility of different forms of heavy metal in plants is different. Hence, it has great significance to explore the different forms of heavy metals in plants which can help to explore appropriate disposal methods. According to the challenges of phytoremediation, we put forward some views and recommendations for the sustainable and rapid development of phytoremediation technology.
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Affiliation(s)
- Xing Shen
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Min Dai
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Jiawei Yang
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Lin Sun
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Xiao Tan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Department of Environmental Engineering, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Changsheng Peng
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Imran Ali
- Department of Environmental Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China.
| | - Iffat Naz
- Department of Biology, Deanship of Educational Services, Qassim University, Buraidah, 51452, Saudi Arabia.
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Parmar S, Sharma VK, Li T, Tang W, Li H. Fungal Seed Endophyte FZT214 Improves Dysphania ambrosioides Cd Tolerance Throughout Different Developmental Stages. Front Microbiol 2022; 12:783475. [PMID: 35058903 PMCID: PMC8764135 DOI: 10.3389/fmicb.2021.783475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/25/2021] [Indexed: 11/30/2022] Open
Abstract
Phytoremediation is a promising remediation method of heavy metal (HM)-contaminated soils. However, lower HM tolerance of metal accumulator inhibits its practical application and effects. The current study was aimed to illustrate the role of fungal seed endophyte (FZT214) in improving Dysphania ambrosioides Cd tolerance during different developmental stages under various Cd stresses (5, 15, 30 mg kg-1) by pot experiments. The results showed that FZT214 significantly (p < 0.05) improved the host plant's growth at the flowering and fruiting stage in most of the treatment, while at the growing stage the increase was less (p > 0.05). The seed yield was also improved (p < 0.05) in the FZT214-inoculated plants (E+) and induced early flowering was observed. Moreover, the inoculation also positively affected total chlorophyll content, antioxidant process, and lipid peroxidation in most of the treatments throughout three developmental stages. Not all but in most cases, IAA and GA were more in E+ plants while JA was more in the E- plants (non-inoculated plants) during three developmental stages. The results suggested that the colonization of FZT214 to the D. ambrosioides might trigger multiple and comprehensive protective strategies against Cd stress, which mainly include activation of the dilution effects, induced biochemical changes to overcome damage from Cd toxicity, and alteration of the endogenous phytohormones. FZT214 can find competent application in the future to improve the growth of other crop plants.
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Affiliation(s)
- Shobhika Parmar
- Medical School of Kunming University of Science and Technology, Kunming, China
| | - Vijay K. Sharma
- Medical School of Kunming University of Science and Technology, Kunming, China
| | - Tao Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
| | - Wenting Tang
- Medical School of Kunming University of Science and Technology, Kunming, China
| | - Haiyan Li
- Medical School of Kunming University of Science and Technology, Kunming, China
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Eid EM, Khedher KM, Ayed H, Arshad M, Mouldi A, Shaltout KH, Sewelam NA, Galal TM, El-Bebany AF, Alshehri AMA. Prediction models based on soil properties for evaluating the heavy metal uptake into Hordeum vulgare L. grown in agricultural soils amended with different rates of sewage sludge. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:106-120. [PMID: 32081029 DOI: 10.1080/09603123.2020.1730771] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
The current study aims at forming new prediction models to be employed in the approximating the possible uptake of a range of 10 heavy metals (HMs) (Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb and Zn) by Hordeum vulgare tissues including roots, shoots and grains following its growth in soil amended with sewage sludge (SS) using conditions employed in greenhouses. The present study determined an insignificant difference between the actual and predicted quantities of the HMs in the three tissues using t values. The majority of the predicted quantities of the HMs were acceptable with the exception of Cd in the shoots, Cu in grains and Pb in roots. Consequently, it is possible to use these models in assessing the cultivation of barley plants in soil amended with SS in a safe way, while simultaneously monitoring any potential risks to the health of humans.
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Affiliation(s)
- Ebrahem M Eid
- Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Botany, Faculty of Science, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt
| | - Khaled M Khedher
- Department of Civil Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia
- Department of Civil Engineering, High Institute of Technological Studies, Mrezgua University Campus, Nabeul, Tunisia
| | - Hamdi Ayed
- Department of Civil Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia
- Higher Institute of Transport and Logistics of Sousse, University of Sousse, Sousse, Tunisia
| | - Muhammad Arshad
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia
| | - Abir Mouldi
- Department of Civil Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia
- Higher Institute of Transport and Logistics of Sousse, University of Sousse, Sousse, Tunisia
| | - Kamal H Shaltout
- Botany Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Nasser A Sewelam
- Botany Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Tarek M Galal
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Ahmed F El-Bebany
- Plant Pathology Department, Faculty of Agriculture, Alexandria University, El-Shatby, Egypt
| | - Ali M A Alshehri
- Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia
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12
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Duan Z, Luo Y, Wu Y, Wang J, Cai X, Wen J, Xu J. Heavy metals accumulation and risk assessment in a soil-maize (Zea mays L.) system around a zinc-smelting area in southwest China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:4875-4889. [PMID: 34132931 DOI: 10.1007/s10653-021-01003-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 06/05/2021] [Indexed: 05/10/2023]
Abstract
Smelting of nonferrous metals causes significant concerns because of its emissions of heavy metals (HMs) into surface soil, and its potential threat to human health through the food chain. To investigate the HMs concentrations in a soil-maize system, a total of 41 paired soil-maize samples were collected from a typical indigenous zinc-smelting area of northwestern Guizhou Province, China. Results showed that the concentrations of the targeted HMs in the soil were significantly higher than their corresponding background values of Guizhou Province. Results obtained of the geo-accumulation index (Igeo) and the potential ecological risk factor of an individual metal (E r i ) revealed that Cd and Pb were identified as the top-priority control HMs in the study area. The mean concentrations in maize grain decreased in the order of Zn > Pb > Cu > Cd. Bio-accumulation factor (BAF) indicated a strong ability for Cd to be accumulated in the maize root. Translocation factor (TF) and Fourier transform infrared (FTIR) spectroscopy revealed that the maize root played an important role in reducing the mobilization of HMs to stem, except for Zn. Kriging interpolation results illustrated that the spatial distribution patterns of HMs in the maize grain were generally similar to those in sampled soil, and the higher concentrations for the investigated HMs were partially overlapping between soil and maize grain. The average hazard quotient (HQ) of the investigated HMs for both children and adults were all lower than the threshold value (HQ = 1). The total hazard index (HI) was 5.51E-01 and 4.24E-01 for the two population groups, respectively, implying no potential non-carcinogenic risk for local maize-consumers. Sensitivity analysis demonstrated that the oral ingestion rate (IngR) of grain was the predominated contribution to the output of the risk assessment.
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Affiliation(s)
- Zhibin Duan
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
- Institute of Applied Ecology, Guizhou University, Guiyang, 550025, China
| | - Yang Luo
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
- Institute of Applied Ecology, Guizhou University, Guiyang, 550025, China
| | - Yonggui Wu
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China.
- Institute of Applied Ecology, Guizhou University, Guiyang, 550025, China.
- Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang, 550025, China.
| | - Ji Wang
- School of Geography and Environmental Science, Guizhou Normal University, Guiyang, 550025, China
| | - Xiongfei Cai
- School of Geography and Environmental Science, Guizhou Normal University, Guiyang, 550025, China
| | - Jichang Wen
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
- Institute of Applied Ecology, Guizhou University, Guiyang, 550025, China
| | - Jia Xu
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
- Institute of Applied Ecology, Guizhou University, Guiyang, 550025, China
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13
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Liu B, Tian K, Huang B, Zhang X, Bian Z, Mao Z, Yuan X, Fu J, Wu L. Pollution Characteristics and Risk Assessment of Potential Toxic Elements in a Tin-polymetallic Mine Area Southwest China: Environmental Implications by Multi-Medium Analysis. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:1032-1042. [PMID: 34230989 DOI: 10.1007/s00128-021-03314-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 06/23/2021] [Indexed: 06/13/2023]
Abstract
A multi-medium system, involving tailing area (tailings, surrounding soils and water) and downstream agricultural area (river water, sediments and farmland soils), was conceived to evaluate the pollution status of potential toxic elements (PTEs, including Fe, Mn, Ni, Cu, Zn, As, Sn, Pb, Cr and Cd) and environmental risks in a tin-polymetallic mine area southwest China. The results indicated that tailings exhibited representative enrichment and combination characteristics of Sn, Cu, Ni, Fe, As, Pb and Cr compared to surrounding soils. Acid mine drainage (AMD) from tailings and other mining-related sources greatly affected river water and farmland soils, resulting in soil acidification and accumulation of Sn, As, Cu and Pb in paddy soils. Overall, potential ecological risks posed by tailings and river sediments, and pollution risks from Cu, As and Pb in farmland should be concerned. Therefore, effective measures should be urgently taken to prevent PTEs and AMD into surrounding environmental media.
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Affiliation(s)
- Benle Liu
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Kang Tian
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China.
| | - Biao Huang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China
| | - Xiaohui Zhang
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, 210098, Nanjing, China
| | - Zijin Bian
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, 110044, Shenyang, China
| | - Zhiqiang Mao
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, 210098, Nanjing, China
| | - Xuyin Yuan
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, 210098, Nanjing, China
| | - Jiangli Fu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, 650500, Kunming, China
| | - Longhua Wu
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China
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Biswash MR, Lu HL, Dong G, He X, Li JY, Xu RK. Effect of root surface charge on the absorption and accumulation of Cu(II) by different japonica and indica rice varieties under acidic conditions. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 223:112547. [PMID: 34330039 DOI: 10.1016/j.ecoenv.2021.112547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 07/15/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Excessive amounts of copper (Cu) in soils causes toxic effects on plants. In this study, 58 rice cultivars were classified into tolerant, moderately tolerant, and susceptible types for Cu(II) toxicity based on 50% germination (LC50). Nine japonica rice varieties (three each from the tolerant, moderately tolerant, and susceptible groups) and six indica rice varieties (three from the moderately tolerant and susceptible groups) were selected for the hydroponics experiments. In the short-term adsorption experiment, Cu(II) adsorbed on rice roots was differentiated into exchangeable, complexed, and precipitated forms. Similarly, it was done for long-term culture. Absorption of Cu(II) by rice roots and shoots was also measured. The results indicated that adsorbed Cu(II) mainly existed as complexed and exchangeable forms on rice roots in the short-term adsorption experiment, and the exchangeable and complexed Cu(II) levels were greater for indica rice than for japonica rice due to the larger negative charge on the indica rice roots. The adsorbed Cu(II) mainly existed as a complexed form in the long-term culture experiment, and the exchangeable Cu(II) level was much lower than that in the short-term adsorption experiment due to the absorption of Cu(II) by rice plants. The indica varieties absorbed more Cu(II) than the japonica varieties. Furthermore, the absorption and accumulation of Cu(II) by the susceptible varieties were greater than by the tolerant and moderately tolerant varieties for both the japonica and indica rice. The absorption and accumulation of Cu(II) in rice roots were much greater than in the shoots. Chlorophyll content, and the lengths and dry matter weights of the rice roots and shoots decreased with increasing Cu(II) concentration. The Cu(II) showed greater toxicity toward indica varieties than japonica varieties, and the greater negative charge on indica roots was one of reasons for the greater exchangeable Cu(II) on the roots, the increase in Cu(II) toxicity, and the higher uptake of Cu(II) by indica rice varieties compared to japonica rice varieties.
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Affiliation(s)
- Md Romel Biswash
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Adaptive Research Division (ARD), Bangladesh Rice Research Institute (BRRI), Gazipur 1701, Bangladesh
| | - Hai-Long Lu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China
| | - Ge Dong
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xian He
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiu-Yu Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China
| | - Ren-Kou Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
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15
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Wróblewska K, Jeong BR. Effectiveness of plants and green infrastructure utilization in ambient particulate matter removal. ENVIRONMENTAL SCIENCES EUROPE 2021; 33:110. [PMID: 34603905 PMCID: PMC8475335 DOI: 10.1186/s12302-021-00547-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/22/2021] [Indexed: 05/10/2023]
Abstract
Air pollution is regarded as an increasingly threatening, major environmental risk for human health. Seven million deaths are attributed to air pollution each year, 91% of which is due to particulate matter. Vegetation is a xenobiotic means of removing particulate matter. This review presents the mechanisms of PM capture by plants and factors that influence PM reduction in the atmosphere. Vegetation is ubiquitously approved as a PM removal solution in cities, taking various forms of green infrastructure. This review also refers to the effectiveness of plant exploitation in GI: trees, grasslands, green roofs, living walls, water reservoirs, and urban farming. Finally, methods of increasing the PM removal by plants, such as species selection, biodiversity increase, PAH-degrading phyllospheric endophytes, transgenic plants and microorganisms, are presented.
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Affiliation(s)
- Katarzyna Wróblewska
- Department of Horticulture, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
- Department of Horticulture, College of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828 South Korea
| | - Byoung Ryong Jeong
- Department of Horticulture, College of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828 South Korea
- Division of Applied Life Science (BK21 Four), Graduate School, Gyeongsang National University, Jinju, 52828 South Korea
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, South Korea
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16
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Experimental and modeling studies of competitive Pb (II) and Cd (II) bioaccumulation by Aspergillus niger. Appl Microbiol Biotechnol 2021; 105:6477-6488. [PMID: 34424384 DOI: 10.1007/s00253-021-11497-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/01/2021] [Accepted: 08/03/2021] [Indexed: 10/20/2022]
Abstract
Co-existence of toxic metals causes complex toxicity to microorganisms during bioremediation in water and soil. This study investigated the immobilization of Pb2+ and Cd2+ by fungus Aspergillus niger, which has been widely applied to environmental remediation. Five treatments were set, i.e., CK (no toxic metals), Pb2+ only, Cd2+ only, Pb2+/Cd2+ = 1:1(molar ratio), and Pb2+/Cd2+ = 2:1. Cadmium induced strong toxicity to the fungus, and maintained the high toxicity during incubation. However, as Pb/Cd ratio increased from 0 to 2, the removal rates of Cd2+ by A. niger were raised from 30 to 50%. The elevated activities of pyruvate dehydrogenase (PDH) and citrate synthetase (CS) enzymes confirmed that Pb addition could stimulate the growth of A. niger. For instance, citric acid concentrations and CS activities were 463.22 mg/L and 78.37 nmol/min/g, respectively, during 3-day incubation as Pb/Cd = 1. However, these two values were as low as ~ 50 with addition of only Cd. It was hence assumed that appropriate co-existence of Pb2+ enhanced microbial activity by promoting TCA cycle of the fungus. Moreover, the SEM analysis and geochemical modeling demonstrated that Pb2+ cations were more easily adsorbed and mineralized on A. niger with respect to Cd2+. Therefore, instead of intensifying metal toxicity, the addition of appropriate Pb actually weakened Cd toxicity to the fungus. This study sheds a bright future on application of A. niger to the remediation of polluted water with co-existence of Pb and Cd. KEY POINTS: • Cd2+ significantly inhibited P consumption, suggesting its high toxicity to A. niger. • Pb2+ stimulated the growth of A. niger by promoting TCA cycle in the cells. • Cd2+ removal by A. niger were improved with co-existence of Pb2+.
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17
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Shaltout KH, Alamri SAM, Alrumman SA, Hussain AA, Sewelam N, Eid EM. Evaluation of uptake of eight metals by Sorghum bicolor grown in arable soil combined with sewage sludge based on prediction models. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:510. [PMID: 34302207 DOI: 10.1007/s10661-021-09320-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Prediction models were developed to estimate the extent to which aluminium, chromium, copper, iron, manganese, nickel, lead, and zinc were absorbed in the grains, leaves, stems, and roots of Sorghum bicolor cultivated in soil with various amendment rate of sewage sludge (0, 10, 20, 30, 40, and 50 g/kg) under greenhouse conditions. It was found that, aside from lead, all the examined metals occurred in significantly higher content in the roots compared to aerial tissues. Furthermore, the r-values were significantly negative between the bioconcentration factors of all metals, apart from aluminium and lead, and soil pH, whereas they were significantly positive between the bioconcentration factors, apart from lead, and soil organic matter content (OM). The r-values were typically significantly positive between the levels of all eight metals in the investigated tissues and in the soil. Moreover, the content of all the eight metals in the tissues exhibited a significant negative r-value with soil pH but a significant positive r-value with soil OM. The eight metal contents in the tissues given by the prediction models were quite similar to the real values, suggesting that the created models performed well, as shown by t-tests. It was thus concluded that prediction models were a viable option for evaluating how safe it was to grow S. bicolor in soils with sewage sludge content and at the same time for keeping track of possible human health hazards.
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Affiliation(s)
- Kamal H Shaltout
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Saad A M Alamri
- Biology Department, College of Science, King Khalid University, Abha, 61321, Saudi Arabia
| | - Sulaiman A Alrumman
- Biology Department, College of Science, King Khalid University, Abha, 61321, Saudi Arabia
| | - Ahmed A Hussain
- Biology Department, College of Science, King Khalid University, Abha, 61321, Saudi Arabia
| | - Nasser Sewelam
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Ebrahem M Eid
- Biology Department, College of Science, King Khalid University, Abha, 61321, Saudi Arabia.
- Botany Department, Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh, 33516, Egypt.
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Hazardous Heavy Metals Accumulation and Health Risk Assessment of Different Vegetable Species in Contaminated Soils from a Typical Mining City, Central China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052617. [PMID: 33807858 PMCID: PMC7967305 DOI: 10.3390/ijerph18052617] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 11/17/2022]
Abstract
Heavy metal poisoning has caused serious and widespread human tragedies via the food chain. To alleviate heavy metal pollution, particular attention should be paid to low accumulating vegetables and crops. In this study, the concentrations of five hazardous heavy metals (HMs), including copper (Cu), chromium (Cr), lead (Pb), cadmium (Cd), and arsenic (As) were determined from soils, vegetables, and crops near four typical mining and smelting zones. Nemerow’s synthetical pollution index (Pn), Potential ecological risk index (RI), and Geo-accumulation index (Igeo) were used to characterize the pollution degrees. The results showed that soils near mining and metal smelting zones were heavily polluted by Cu, Cd, As, and Pb. The total excessive rate followed a decreasing order of Cd (80.00%) > Cu (61.11%) > As (45.56%) > Pb (32.22%) > Cr (0.00%). Moreover, sources identification indicated that Cu, Pb, Cd, and As may originate from anthropogenic activities, while Cr may originate from parent materials. The exceeding rates of Cu, Cr, Pb, Cd, and As were 6.7%, 6.7%, 66.7%, 80.0%, and 26.7% among the vegetable and crop species, respectively. Particularly, vegetables like tomatoes, bell peppers, white radishes, and asparagus, revealed low accumulation characteristics. In addition, the hazard index (HI) for vegetables and crops of four zones was greater than 1, revealing a higher risk to the health of local children near the mine and smelter. However, the solanaceous fruit has a low-risk index (HI), indicating that it is a potentially safe vegetable type.
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Yang N, Wang H, Wang H, Wang Z, Ran J, Guo S, Peng Y. Screening maize (Zea mays L.) varieties with low accumulation of cadmium, arsenic, and lead in edible parts but high accumulation in other parts: a field plot experiment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10.1007/s11356-021-12958-y. [PMID: 33641104 DOI: 10.1007/s11356-021-12958-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
To find maize varieties with both safe production and soil remediation, 11 maize varieties were planted in field soil which was combinedly polluted by cadmium (Cd), arsenic (As), and lead (Pb). The plant growth, accumulation, phytochemical forms, and translocation of Cd, As, and Pb in different tissues were examined. Furthermore, maize varieties with low metal accumulation in their edible parts but high accumulation in other parts were selected as remediation candidates and pollution-safe varieties. The results showed that the growth of varieties Yayu69, Longhuang2502, and Shennongyu10 were the least affected by heavy metals. The concentrations of Cd, As, and Pb in all of the tested maize grains met the national feed hygiene standards, and the grain concentrations of the three metals in Yayu69, Shengnongyu10, and Yunrui62 all met the national food safety standards. According to the extraction efficiency of Cd, As, and Pb and heavy metal concentrations in grains, four types of maize were classified as follows: (1) the first category was suitable for both soil remediation and safe production, including the varieties Yayu69 (Cd, Pb), Jinyi418 (As, Cd), and Shengnongyu10 (Pb); (2) the second category had a high concentration of metals in edible part but did not exceed the limiting value in national feed hygiene standards, and the metal extraction efficiency was also high, including Beiyu1521 (Cd) and Longhuang2502 (Cd, As, Pb); (3) the third category included heavy metal exclusion varieties with low metals accumulation, such as Yayu749 (Cd), Yunrui62 (As, Pb), and Yunrui8 (As); and (4) the fourth type covered risk maize varieties with food safety risks and unsuitable cultivation at sites polluted with toxic metals, including Chuangui1586 (Pb) and Enyu69 (As). The variety Yayu69 (a Cd/Pb low accumulator in grain) contained a low percentage of inorganic (FE) and water-soluble (FW) Cd (4%) and Pb (6%) in roots, respectively, but the percentage of FE and FW Cd and Pb in the variety Beiyu1521 (a Cd/Pb high accumulator in grain) was up to 29% and 13%. Our results provided a new perspective in applying maize varieties with different metal-accumulating ability in their different parts to achieve the remediation of metal-polluted soil and the sustainable development of agricultural production.
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Affiliation(s)
- Ningke Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Hongbin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China.
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China.
| | - Haijuan Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Zhongzhen Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Jiakang Ran
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Siyu Guo
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
| | - Yu Peng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
- Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, Yunnan, China
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20
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Guo G, Zhang D. Source apportionment and source-specific health risk assessment of heavy metals in size-fractionated road dust from a typical mining and smelting area, Gejiu, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:9313-9326. [PMID: 33141385 DOI: 10.1007/s11356-020-11312-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 10/18/2020] [Indexed: 06/11/2023]
Abstract
Source-specific health risk apportionment for heavy metals is critical for pollution prevention and risk management in mining and smelting areas. An integrated method combining health risk assessments with the positive matrix factorization model was proposed to evaluate source-specific health risks for adults and children. A typical mining and smelting area was taken as an example in the present study to apportion the source-specific health risks to humans. A total of 37 road dust samples collected from the industrial (IA) and residential areas (RA) of Gejiu (China) were analyzed for heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn). The results indicated that road dust in the study area was mainly contaminated with Cd, Cu, Pb, and Zn. Three potential sources, including atmospheric deposition, industrial waste, and natural sources, were identified and quantified, with contributions of 43.32%, 30.83%, and 25.85%, respectively. For non-carcinogenic risks, a similar trend of the source contribution was found for adults and children under the same land use; atmospheric deposition made the greatest contribution to the non-carcinogenic risk in both IA and RA. However, for carcinogenic risk, natural sources were the greatest contributor to human health risks in both IA and RA, followed by atmospheric deposition and industrial waste. The investigation in this study allowed the evaluation of health risks from potential contamination sources and the results provide valuable information on health risk mitigation strategies for environmental managers.
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Affiliation(s)
- Guanghui Guo
- Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Degang Zhang
- Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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21
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Gu L, Yu J, Fan Y, Wang S, Yang L, Liu K, Wang Q, Chen G, Zhang D, Ma Y, Wang L, Liu A, Cao H, Li X, Li K, Tao F, Sheng J. The Association Between Trace Elements Exposure and the Cognition in the Elderly in China. Biol Trace Elem Res 2021; 199:403-412. [PMID: 32323131 DOI: 10.1007/s12011-020-02154-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/08/2020] [Indexed: 10/24/2022]
Abstract
This study aimed to evaluate the association between aluminum (Al), arsenic (As), barium (Ba), cobalt (Co), manganese (Mn), selenium (Se), strontium (Sr), thallium (Tl), and vanadium (V) levels in whole blood and the cognitive ability of people over 60 years old. A total of 1217 eligible participants were enrolled in our study in Lu'an city, Anhui province, China. The inductively coupled plasma mass spectrometry (ICP-MS) was used to determine the concentration of nine trace elements in the whole blood, which reflect their exposure levels. Mini-mental State Examination (MMSE) scale was employed to screen the cognitive function of the elderly. Logistic regression was applied to assess the associations of nine whole blood trace elements with cognition. In the work, it has found that high levels of whole blood As and Se are risk factors for cognitive dysfunction. As and Se quartile were correlated with increased risk of cognitive dysfunction, and with the odds ratio (OR) of 2.06 (95% CI 1.30-3.25; p-trend = 0.002), 1.947 (95% CI 1.20-3.17; p-trend = 0.007) in the highest quartile. However, high concentration of Al, V, and Ba in whole blood were protective factors for cognitive function [OR = 0.63 (95% CI 0.40-0.98; p-trend = 0.040), 0.549 (95% CI 0.36-0.85; p-trend = 0.007), 0.460 (95% CI 0.28-0.75; p-trend = 0.002) respectively]. The study suggested that the exposure of some trace elements (As, Se) were associated with the increased risk of cognitive dysfunction; on the contrary, other elements (Al, V, Ba) could be protective factor for cognitive function. These findings need to be confirmed in additional research of a large elderly population.
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Affiliation(s)
- Ling Gu
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China
| | - Jinhui Yu
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China
| | - Yong Fan
- Anhui Provincial Center for Disease Control and Prevention, Hefei, 230601, Anhui, China
| | - Sufang Wang
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China
| | - Linsheng Yang
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China
| | - Kaiyong Liu
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China
| | - Qunan Wang
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China
| | - Guimei Chen
- School of Health Management, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Dongmei Zhang
- School of Health Management, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Ying Ma
- School of Health Management, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Li Wang
- School of Health Management, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Annuo Liu
- School of Nursing, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Hongjuan Cao
- Lu'an Center of Disease Control and Prevention, Lu'an, 237000, Anhui, China
| | - Xiude Li
- Lu'an Center of Disease Control and Prevention, Lu'an, 237000, Anhui, China
| | - Kaichun Li
- Lu'an Center of Disease Control and Prevention, Lu'an, 237000, Anhui, China
| | - Fangbiao Tao
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China
- MOE Key Laboratory of Population Health Across Life Cycle / Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, 230032, Anhui, China
| | - Jie Sheng
- School of Public Health, Anhui Medical University, Hefei, 230601, Anhui, China.
- MOE Key Laboratory of Population Health Across Life Cycle / Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, 230032, Anhui, China.
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22
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Evaluation of newly reclaimed areas in Saudi Arabia for cultivation of the leguminous crop Phaseolus vulgaris under sewage sludge amendment. J Verbrauch Lebensm 2021. [DOI: 10.1007/s00003-020-01311-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Liu C, Liao Y, Zhu Z, Yang L, Zhang Q, Li L. The association between serum copper concentrations and elevated blood pressure in US children and adolescents: National Health and Nutrition Examination Survey 2011-2016. BMC Cardiovasc Disord 2021; 21:57. [PMID: 33509096 PMCID: PMC7845002 DOI: 10.1186/s12872-021-01880-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/22/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Copper is an essential trace metal with potential interest for cardiovascular effects. Few studies have explored the association between copper and blood pressure in children and adolescents. METHOD We conducted a cross-sectional analysis of 1242 children and adolescents aged 8-17 years who participated in the 2011 to 2016 National Health and Nutrition Examination Survey. Using 2017 American Academy of Pediatrics guidelines, elevated blood pressure (EBP) was defined as a mean systolic and/or diastolic blood pressure (BP) ≥ 90th percentile for sex, age, and height for children aged 1-12 years and systolic BP ≥ 120 mmHg or diastolic BP ≥ 80 mmHg for adolescent age 13-17 years. Mean serum copper was 114.17 μg/dL. RESULTS After multiple adjustments, dose-response analyses revealed that EBP was associated with progressively higher serum copper concentrations in a nonlinear trend. In comparison with the lowest quartile of serum copper concentrations, the adjusted odds of EBP for the highest quartile was 5.26 (95% confidence interval, 2.76-10.03). CONCLUSION Our results suggested that high serum copper concentrations were significantly associated with EBP in US children and adolescents.
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Affiliation(s)
- Changsong Liu
- Department of Cardiology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, China
| | - Yanfen Liao
- Department of Stomatology, The Seventh Affiliated Hospital Sun Yat-Sen University, Shenzhen, 518000, China
| | - Zongyuan Zhu
- Department of Huiqiao Building, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Lili Yang
- Department of Cardiology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, China
| | - Qin Zhang
- Department of Cardiology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, China
| | - Li Li
- Department of Cardiology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, China. .,The Third Affiliated Hospital of Chongqing Medical University, 1 Shuanghu Branch Road, Yubei District, Chongqing, China.
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24
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Sun L, Ma SC, Zuo TT, Luo FY, Jin HY, Xing SX, Li B, Yu KZ, Kang S. Determination of the bioaccessibility of cadmium in golden thread by physiologically based extraction test digestion using the In vitro/Caco2 cell model and subsequent risk assessment. WORLD JOURNAL OF TRADITIONAL CHINESE MEDICINE 2021. [DOI: 10.4103/wjtcm.wjtcm_19_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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25
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Guo G, Zhang D, Wang Y. Characteristics of heavy metals in size-fractionated atmospheric particulate matters and associated health risk assessment based on the respiratory deposition. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:285-299. [PMID: 32895728 DOI: 10.1007/s10653-020-00706-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
The heavy metal distributions in size-fractionated atmospheric particulate matters and the associated health risks were investigated in a typical mining and smelting area in Southwest China. The Cd, Cr, Cu, Pb, and Zn concentrations were 19.28, 44.48, 100.0, 554.0, and 601.8 ng/m3, respectively, in PM2.1; and 23.45, 60.99, 95.25, 559.3, and 813.7 ng/m3, respectively, in PM10. Enrichment factors of heavy metals indicated that anthropogenic sources of Cd, Cu, Pb, and Zn in the size-fractionated particles. The elevated concentrations of Cd, Cu, Pb, and Zn were dominantly enriched in submicron particles (DP < 1.1 μm), whereas Cr tended to be accumulated in coarse particles (2.1 < DP < 10 μm). The deposition concentrations for multiple heavy metals in the head airway region, tracheobronchial region, and alveolar regions were 321.07, 21.58, and 51.96 ng/h for children, and 634.49, 42.65, and 102.68 ng/h for adults, respectively. The coarse particles contributed the most to the deposition concentration of HMs in head region, whereas submicron particles had relative higher proportions in the alveolar region. Heavy metals, especially Pb, caused noncarcinogenic risk to the children as the hazard index was 4.45. Moreover, total carcinogenic risks of heavy metals (Cr, Cd, and Pb) were 4.33 × 10-5 and 7.58 × 10-5 for adults and children, respectively, indicating potential carcinogenic risks. Overall, the results of this study revealed high health risks to the residents living around the mining and smelting areas, especially the children. It was therefore urgent to control the emission of heavy metals in the atmosphere.
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Affiliation(s)
- Guanghui Guo
- Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Degang Zhang
- Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuntao Wang
- Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Tang Y, Wang L, Xie Y, Yu X, Lin L, Li H, Liao M, Wang Z, Sun G, Liang D, Xia H, Wang X, Tu L. Effects of intercropping accumulator plants and applying their straw on the growth and cadmium accumulation of Brassica chinensis L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:39094-39104. [PMID: 32638307 DOI: 10.1007/s11356-020-09148-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Two pot experiments were conducted to study the effects of intercropping cadmium (Cd) accumulator plants (Stellaria media (L.) Villars, Cardamine hirsuta, Cerastium glomeratum Thuill, and Galium aparine L.) and applying their straw on the growth and Cd accumulation of Brassica chinensis L. Intercropping with four accumulator plants reduced the biomass, water content, and photosynthetic pigment content of B. chinensis compared with monoculture. Intercropping with accumulator plants increased the Cd content in the roots and shoot of B. chinensis, and the translocation factor (TF), root bioconcentration factor (root BCF), and shoot bioconcentration factor (Shoot BCF) increased. The soil pH decreased and the soil available Cd content increased by intercropping. Thus, intercropping with four accumulator plants can promote the Cd uptake of B. chinensis. The straw of four accumulator plants reduced the biomass, water content, and photosynthetic pigment content of B. chinensis compared with the control. The straw of S. media and C. hirsute increased the Cd content in the roots and shoots of B. chinensis, TF, root BCF, and shoot BCF. The straw of C. glomeratum and G. aparine decreased the Cd content in the roots and shoots of B. chinensis, TF, root BCF, and shoot BCF. The soil pH increased and the soil available Cd content decreased by application of straw. Thus, the straw of C. glomeratum and G. aparine can reduce the Cd uptake of B. chinensis.
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Affiliation(s)
- Yi Tang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Liming Wang
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yongdong Xie
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Xuena Yu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
| | - LiJin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Huanxiu Li
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China.
| | - Ming'an Liao
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Zhihui Wang
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Guochao Sun
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Dong Liang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Hui Xia
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Xun Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Lihua Tu
- College of Forestry, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
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27
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Wang Z, Wang H, Wang H, Li Q, Li Y. Effect of soil washing on heavy metal removal and soil quality: A two-sided coin. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:110981. [PMID: 32678759 DOI: 10.1016/j.ecoenv.2020.110981] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/27/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal contamination in soil due to human activities is a global environmental problem. To find a washing solution that can significantly decontaminate heavy metals and minimize damage to soil quality, six washing solutions (H3PO4, K2CO3, CH3COOK, KH2PO4, HNO3 and KNO3) were used at different concentrations to treat contaminated soil collected from the field. Furthermore, changes in soil physicochemical properties and heavy metal speciation among prewashed, postwashed and neutralized samples were tested. Additionally, soil enzyme activities and soil microbial diversities in contaminated soil among the prewashed, postwashed and neutralized samples were also measured. Finally, a pot experiment was conducted with Mentha haplocalyx to test the efficiency of soil washing. The results revealed that the optimum washing solution was 1% HNO3 and that the removal rates of Cd and Pb were 75.7% and 60.6%, respectively, under treatment conditions of 35 °C, 90 min and a solid-liquid ratio of 1:10. The pH, total phosphorous, available potassium, soil enzyme activities and soil microbial diversity decreased significantly after washing. However, after the neutralization of washed soil with Ca(OH)2, the available phosphorous, total nitrogen and some microorganisms increased significantly compared with those of the soil before washing. After treatment with 1% HNO3, the chemical forms of Cd and Pb in soil mainly existed as F1 (exchangeable) fractions, but the main forms of the two metals changed to F5 (residual) and F3 (bound to Fe-Mn oxides) fractions after neutralization with Ca(OH)2. In addition, the plant height, root length, and fresh and dry weight of M. haplocalyx were not significantly affected by soil neutralization, while the Pb, Cu and As concentrations in the aboveground parts significantly decreased. Therefore, although soil washing could effectively remove Pb and Cd in soil, it also resulted in a significant decline in soil quality, but soil neutralization could effectively alleviate the negative effects during soil washing.
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Affiliation(s)
- Zhongzhen Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, China.
| | - Hongbin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, China.
| | - Haijuan Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, China.
| | - Qinchun Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, China.
| | - Yang Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control, Kunming, 650500, China.
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28
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Zuo TT, Jin HY, Zhang L, Liu YL, Nie J, Chen BL, Fang CF, Xue J, Bi XY, Zhou L, Shen MR, Shi SM, Ma SC. Innovative health risk assessment of heavy metals in Chinese herbal medicines based on extensive data. Pharmacol Res 2020; 159:104987. [DOI: 10.1016/j.phrs.2020.104987] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 11/27/2022]
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Zuo TT, Qu HR, Jin HY, Zhang L, Luo FY, Yu KZ, Gao F, Wang Q, Sun L, He HZ, Ma SC. Innovative health risk assessments of heavy metals based on bioaccessibility due to the consumption of traditional animal medicines. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:22593-22603. [PMID: 32319064 DOI: 10.1007/s11356-020-08769-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/03/2020] [Indexed: 05/22/2023]
Abstract
Few studies reported the extent of heavy metal accumulation in traditional Chinese medicines (TCMs). Currently, oral bioaccessibility of lead (Pb), cadmium (Cd), arsenic (As), mercury (Hg), and copper (Cu) present in traditional animal medicines was investigated with physiologically based extraction test-extracted in vitro model. We are the first to develop a health risk assessment strategy by combinational analysis of bioaccessible heavy metal levels to calculate target hazard quotient (THQ), target hazard index (THI) and cancer risk (CR), which has capacity to evaluate the heavy metal associated heath risk of traditional animal medicines. To precisely acquire a realistic risk assessment, questionnaire data was adopted to measure the frequency and duration of the exposure to traditional animal medicines, and the safety factor was highlighted as well. Our data revealed that the bioaccessibility of Hg was the lowest among the five heavy metals. After the adjustment with the bioaccessibility of each heavy metal to target hazard index (THI) values, excitingly, the results manifested that the consumption of traditional animal medicines might not exert an unacceptable health risk in a broad community. In addition, the CR values of As and Pb indicated that the risk of developing cancers was quite lower than their acceptable levels in the clinic.
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Affiliation(s)
- Tian-Tian Zuo
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
- Xi'an Jiaotong University, No. 28 Xianning Xi Road, Xi'an 710049, Beijing, 100022, China
| | - Hao-Ran Qu
- Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Hong-Yu Jin
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Lei Zhang
- China National Center for Food Safety Risk Assessment, Beijing, China
| | - Fei-Ya Luo
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Kun-Zi Yu
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Fei Gao
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Qi Wang
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Lei Sun
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China.
- Xi'an Jiaotong University, No. 28 Xianning Xi Road, Xi'an 710049, Beijing, 100022, China.
| | - Huai-Zhen He
- Xi'an Jiaotong University, No. 28 Xianning Xi Road, Xi'an 710049, Beijing, 100022, China.
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China.
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30
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Shehata HS, Galal TM. Trace metal concentration in planted cucumber (Cucumis sativus L.) from contaminated soils and its associated health risks. J Verbrauch Lebensm 2020. [DOI: 10.1007/s00003-020-01284-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Nan G, Meng X, Song N, Liu Z, Liu Y, Yang G. Fractionation analysis and health risk assessment of heavy metals in six traditional Chinese medicines. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:10308-10316. [PMID: 31933094 DOI: 10.1007/s11356-019-07558-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
Traditional Chinese medicines (TCMs) are widely used to treat various diseases in China and some countries, and TCM products are becoming increasingly available and popular worldwide. But TCMs are facing the challenge of heavy metal pollution. In this work, we examined the total contents and fractionations of Pb, Cd, Hg, and Cu in six TCMs (Angelicae Sinensis Radix (ASR), Chuanxiong Rhizoma (CR), Polygonati Rhizoma (PR), Astragali Radix (AR), Carthami Flos (CF), and Paeoniae Radix Rubra (PRR)) and evaluated the health risk of four heavy metals in these TCMs. The results showed that Cd, Pb, and Cu contents were considerably high and the amount of Cd in six TCMs, Pb in CR, ASR, AR, and CF, and Hg in ASR, PR, and PRR exceeded the limit values. The predominant fractions of Pb, Cd, and Cu were exchangeable and carbonate fractions in six TCMs; Hg mainly existed in organic and residual fractions. The average daily intake dose (ADD) and target hazard quotient (THQ) of Pb based on total content and total THQ of four heavy metals based on bioaccessible fractions in AR and PRR exceeded the safety guideline. These results indicated that the potential health risk could occur by taking these TCMs.
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Affiliation(s)
- Guanjun Nan
- School of Pharmacy, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Xianxin Meng
- School of Pharmacy, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Ning Song
- School of Pharmacy, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Zhengzheng Liu
- School of Pharmacy, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Yu Liu
- School of Pharmacy, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Guangde Yang
- School of Pharmacy, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China.
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Guo G, Zhang D, Wang Y. Probabilistic Human Health Risk Assessment of Heavy Metal Intake via Vegetable Consumption around Pb/Zn Smelters in Southwest China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16183267. [PMID: 31491979 PMCID: PMC6765770 DOI: 10.3390/ijerph16183267] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 08/30/2019] [Accepted: 08/31/2019] [Indexed: 11/16/2022]
Abstract
Vegetable contamination in mining and smelting areas has resulted in high dietary intakes of heavy metals, which pose potential health risks to local residents. In this study, paired soil-vegetable samples were collected around Pb/Zn smelters in Southwest China. Probabilistic risks to local residents via vegetable consumption were evaluated with a Monte Carlo simulation. The mean concentrations of As, Cd, Cu, Pb, and Zn in the soils were 116.76, 3.59, 158.56, 196.96, and 236.74 mg/kg, respectively. About 38.18%, 58.49%, and 52.83% of the vegetable samples exceeded the maximum allowable concentrations for As, Cd, and Pb, respectively. The daily dietary intake of As, Cd, and Pb exceeded the provisional tolerable daily intakes for local residents, with children showing the highest intake via vegetable consumption. The percentages of the target hazard quotients of As, Cd, and Pb for local residents exceeding the safe value of one were about 95%, 50%, and 25%, respectively. The 95th percentiles of the hazard index for children, adolescents, and adults were 15.71, 11.15, and 9.34, respectively, indicating significant risks to local residents, especially children. These results highlight a need to develop effective strategies to reduce heavy metal contamination and exposure to protect human health.
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Affiliation(s)
- Guanghui Guo
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
| | - Degang Zhang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yuntao Wang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
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Potential Ecological Risk and Health Risk Assessment of Heavy Metals and Metalloid in Soil around Xunyang Mining Areas. SUSTAINABILITY 2019. [DOI: 10.3390/su11184828] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Xunyang is rich in various metal minerals and is one of the four major metal mining areas in Shaanxi province, China. To explore the effects of soil heavy metals and metalloid pollution on the environment and human health around the mining areas, four places—Donghecun (D), Gongguan (G), Qingtonggou (Q) and Nanshagou (N)—were selected as the sampling sites. Potential ecological risk (PER) and health risk assessment (HRA) models were used to analyze the environmental and health risks around the mining areas. The concentration of heavy metals (Cd, Cr, Pb, Zn, Ni, Cu, Hg) and metalloid (As) in cultivated land in the vicinity of Xunyang mining areas indicated that, except for Cu, the remaining elements detected exceeded the threshold values at some sites. The geo-accumulation index (IGeo) revealed that soils in G and Q could be identified as being extremely contaminated. PER indicated that there was significantly high risk at G and Q for Hg. In N, Pb recorded the highest E r i , which also demonstrates a considerable pre-existing risk. HRA indicated that the hazard index (HI) for both carcinogenic and non-carcinogenic risks was much higher among children than among adults, and the ingestion pathway contributed the greatest risk to human health, followed by the dermal pathway and inhalation. Because the HI values of the metals and metalloid in the study areas were all lower than 1, there was no significant non-carcinogenic risk. However, the carcinogenic risk for Cr is relatively higher, surpassing the tolerable values in G, Q, and N. This study analyzed the ecological risks and human health risks of heavy metals and metalloid in farmland soils near the sampling mining areas, and demonstrated the importance of environmental changes caused by land development in the mining industry.
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Liu X, Xu M, An B, Wu Z, Yang R, Ma C, Huang Q, Li W, Li J, Liu S. A facile hydrothermal method-fabricated robust and ultralight weight cellulose nanocrystal-based hydro/aerogels for metal ion removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25583-25595. [PMID: 31267405 DOI: 10.1007/s11356-019-05810-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 06/20/2019] [Indexed: 06/09/2023]
Abstract
Heavy metal ion contamination, in particular that associated with Pb2+, Cd2+, and Cu2+, poses a considerable threat to aquatic environments and human health. To obtain a highly efficient adsorbent, in this work, a facile hydrothermal method was applied to prepare acrylic acid grafted onto cellulose nanocrystal (AA-g-CNC) hydro/aerogel as an adsorbent for Pb2+, Cd2+, and Cu2+ removal. The obtained AA-g-CNC hydrogels withstood up to 0.821 MPa of compression and showed good reciprocating performance when the deformation reached 40%. The as-formed AA-g-CNC aerogels had highly porous honeycomb structure, with many functional groups and a high zeta potential, all of which are essential features for an effective adsorbent. The maximum Pb2+, Cd2+, and Cu2+ removal capacities of AA-g-CNC aerogels reached 1026, 898.8, and 872.4 mg/g respectively. Their adsorption followed the Freundlich isotherm model and fitted well with pseudo-second-order kinetic models. The adsorption mechanism mainly attributed to electrostatic chelation between metal ions with sulfonate and carboxylate groups.
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Affiliation(s)
- Xuehua Liu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Mingcong Xu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Bang An
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Zhenwei Wu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Rue Yang
- Post-Doctoral Research Center, Yihua Lifestyle Technology Co., Ltd., Shantou, 515834, People's Republic of China
| | - Chunhui Ma
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Qiongtao Huang
- Post-Doctoral Research Center, Yihua Lifestyle Technology Co., Ltd., Shantou, 515834, People's Republic of China
| | - Wei Li
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China.
- Post-Doctoral Research Center, Yihua Lifestyle Technology Co., Ltd., Shantou, 515834, People's Republic of China.
| | - Jian Li
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Shouxin Liu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China.
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Sun W, Xiong Z, Chu L, Li W, Soares MA, White JF, Li H. Bacterial communities of three plant species from Pb-Zn contaminated sites and plant-growth promotional benefits of endophytic Microbacterium sp. (strain BXGe71). JOURNAL OF HAZARDOUS MATERIALS 2019; 370:225-231. [PMID: 29429846 DOI: 10.1016/j.jhazmat.2018.02.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 12/27/2017] [Accepted: 02/03/2018] [Indexed: 05/22/2023]
Abstract
The endophytic bacterial community of two hyperaccumulators (Arabis alpine, Dysphania ambrosioides) and Veronica ciliate was investigated by Illumina sequencing technology. In addition, the culturable endophytic bacteria (EB) were isolated and their plant-growth promotion capabilities were studied. A dataset consisting of 221,075 filtered high-quality and classifiable unique 16S rDNA gene tags, and an average of 36,846 tags with a mean length of 464-bp for each sample was generated. In total, 10801 different operational taxonomic units (OTUs) were detected, belonging to 18 bacterial phyla, 41 classes, 91 orders, 135 families, and 215 genera. Pseudomonas was the most dominant genus in both shoots and roots of the two hyperaccumulators, making up 81.56% and 81.13%, 41.60% and 77.06% of the total number of OTUs, respectively. However, both Chao 1 and Shannon indices of EB of the two hyperaccumulators were significantly lower than those of V. ciliate (P <. 05), except the Shannon index of D. ambrosioides shoots. The endophytic bacterial community of roots and shoots of A. alpine showed greater similarity with that of D. ambrosioides roots (12 km away), and clustered to one group in dendrogram, in clear contrast to that of V. ciliate, which grew closer to A. alpine (60 m away). Combining results of soil and plant analyses, we suggest that the soil properties, especially heavy metal concentration, may influence the plants endophytic bacterial community composition. Pot experiments showed that the strain BXGe71 (Microbacterium sp.) from A. alpine significantly enhanced host plants' growth under multi-heavy metal (HM) stress (P < .05, t-test).
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Affiliation(s)
- Weihong Sun
- Medical School, Kunming University of Science and Technology, Kunming 650500,China
| | - Zhi Xiong
- Medical School, Kunming University of Science and Technology, Kunming 650500,China
| | - Long Chu
- Medical School, Kunming University of Science and Technology, Kunming 650500,China
| | - Wei Li
- Medical School, Kunming University of Science and Technology, Kunming 650500,China
| | - Marcos A Soares
- Department of Botany and Ecology, Universidade Federal de Mato Grosso, Cuiabá 78060900, Brazil
| | - James F White
- Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Haiyan Li
- Medical School, Kunming University of Science and Technology, Kunming 650500,China.
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Luo P, Xiao X, Han X, Ma Y, Sun X, Jiang J, Wang H. Application of different single extraction procedures for assessing the bioavailability of heavy metal(loid)s in soils from overlapped areas of farmland and coal resources. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:14932-14942. [PMID: 30919188 DOI: 10.1007/s11356-019-04833-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Heavy metal(loid) extraction from soils in overlapped areas of farmland and coal resources (OAFCR) is crucial in understanding heavy metal bioavailability in soil and the subsequent risks to crops and consumers. However, limited attention has been paid to the extraction procedure of heavy metal(loid)s in OAFCR soils in the research. This study therefore explored different single and mixed extraction procedures, such as acetic acid (HOAc), citric acid, ammonium bicarbonate-diethylenetriaminepentaacetic acid (AB-DTPA), ethylene diamine tetraacetic acid + ammonium acetate (EDTA+NH4OAc), and total digestion (HNO3-HClO4-HF) to determine the bioavailability of As, Cd, Cr, Cu, Pb, and Zn in OAFCR soil in Xuzhou, China. The results showed the metal(loid) extraction capacity from soil of the different procedures could be ranked as AB-DTPA > EDTA+NH4OAc > HOAC > citric acid. The transfer ability of heavy metal(loid)s from soil to wheat tissues and from wheat roots to aerial parts was analyzed by calculating the bioconcentration factor and transfer factor, respectively. Transfer factors of all metal(loid)s were < 1 except Cr whose transfer factor from root to shell and straw were > 1. It is suspected that foliar uptake plays a dominant role in Cr uptake. Correlation analysis between the bioavailability of heavy metal(loid)s in soil and uptake in respective wheat tissues was performed to recommend the best extraction procedures for different studies. The results show that AB-DTPA extraction is recommended for Cu uptake to wheat roots, straws, shells and grains, Zn uptake to roots, and Cd uptake to roots and straws.
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Affiliation(s)
- Ping Luo
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Xin Xiao
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China.
| | - Xiaoxuan Han
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Yu Ma
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Xiaofei Sun
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Jiachao Jiang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Hui Wang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
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37
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Regression models for monitoring trace metal accumulations by Faba sativa Bernh. plants grown in soils amended with different rates of sewage sludge. Sci Rep 2019; 9:5443. [PMID: 30931965 PMCID: PMC6443791 DOI: 10.1038/s41598-019-41807-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 03/18/2019] [Indexed: 02/07/2023] Open
Abstract
The present study was conducted using a pot experiment to develop regression models for the prediction of trace metal concentrations in faba bean (Faba sativa Bernh.) plants cultivated in soils amended with different rates of sewage sludge to monitor possible human health risks. The trace metal concentrations in the different tissues of faba bean showed that most of the investigated trace metals were accumulated in the plant roots rather than in the other tissues. Meanwhile, the fruits accumulated the lowest concentration of most trace metals. The trace metal concentrations of the faba bean plants had a significant positive correlation with the organic matter content and a significant negative correlation with the soil pH. Transfer of trace metals from the soil to faba bean roots indicated that Al, Cu, Pb and Zn had a transfer factor that exceeded one, whereas the TF of the investigated trace metals from the roots to the fruits did not exceed one. The daily intake rate of the investigated trace metals did not exceed one in both adults and children. On the other side, the hazard quotient of trace metals from consuming faba bean fruits had values <1 for most investigated trace metals except Al and Mn in adults and in children. It is worth mentioning that the predicted trace metal concentrations via the established regression models and measured values from the validation data set were not significantly different (P > 0.05). Therefore, these developed models will be useful for prediction of trace metals uptake by faba bean grown in soil amended with sewage sludge so possible human risks can be identified.
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38
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Wang Z, Wang H, Wang H, Li Q, Li Y. Heavy metal pollution and potential health risks of commercially available Chinese herbal medicines. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 653:748-757. [PMID: 30759600 DOI: 10.1016/j.scitotenv.2018.10.388] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/16/2018] [Accepted: 10/28/2018] [Indexed: 05/19/2023]
Abstract
A survey was conducted to investigate the pollution and health risks of copper (Cu), cadmium (Cd), lead (Pb), arsenic (As), mercury (Hg) and zinc (Zn) in 60 Chinese herbal medicines (CHMs) collected from a market in Kunming City, Yunnan Province, China. Furthermore, eight CHMs (Cyathulae radix, Drynariae rhizoma, Peucedani radix, Homalomenae rhizoma, Dryopteris setosa, Polygonati rhizoma, Lilii bulbus, and Linderae radix) containing high Cd concentrations were selected to further analyse their Cd chemical forms. Additionally, the dissolution rates of six heavy metals in decoction liquid were also analysed for four CHMs (Typhonii rhizoma, Linderae radix, Homalomenae rhizoma, and Cyathulae radix), and the health risks of heavy metals in CHMs were evaluated. The results showed that the Cd, Hg and Cu concentrations in the 60 CHMs exceeded the limiting values of the "Green Trade Standards of Importing & Exporting Medicinal Plants & Preparations" (WM2-2001), with exceedance ratios of 38.8%, 8.3% and 1.7%, respectively. The majority of Cd was integrated with pectates and protein in CHMs, and the other five Cd chemical forms followed the order of water-soluble > insoluble heavy metal phosphates > oxalate > residual > inorganic form, indicating that Cd had relatively low bioactivity and toxicity. The average dissolution rates of Zn, Cu, Cd, Hg, As and Pb in the four CHMs were 47.4%, 33.8%, 20.5%, 6.1%, 5.4% and 4.8%, respectively. The calculation results of hazard quotients (HQs) for Cd and Hg showed that the CHMs did not pose a threat to human health.
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Affiliation(s)
- Zhongzhen Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Hongbin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Haijuan Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Qinchun Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yang Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
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39
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Zuo TT, Li YL, He HZ, Jin HY, Zhang L, Sun L, Gao F, Wang Q, Shen YJ, Ma SC, He LC. Refined assessment of heavy metal-associated health risk due to the consumption of traditional animal medicines in humans. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:171. [PMID: 30783770 DOI: 10.1007/s10661-019-7270-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
Little is known about the extent of heavy metal accumulation in traditional Chinese medicines (TCMs). In this study, the levels of lead (Pb), cadmium (Cd), arsenic (As), and mercury (Hg) in traditional animal medicines were monitored using inductively coupled plasma mass spectroscopy (ICP-MS). Additionally, for the first time, a heavy metal risk assessment strategy was used to evaluate the potential risks of traditional animal medicines by calculating estimated daily intake (EDI), target hazard quotient (THQ), and cancer risk (CR). To obtain a refined risk assessment, the frequency of exposure to traditional animal medicines was determined from questionnaire data, and the safe factor for TCM was applied. Based on the standard levels for leech, it was found that earthworm, hive, scorpion, and leech accumulated high levels of heavy metals. The combined THQ (cTHQ) values indicated that ingestion of most traditional animal medicines would not pose a risk to the health of either male or female human beings. However, it was indicated that attention should be paid to the potential risk associated with cicada slough, earthworm, scorpion, turtle shells, and hive. Among heavy metals, As and Hg contributed to a major extent to the risk to human health. The CR assessment for Pb and As indicated that, with the exception of earthworm, the cancer risk was less than the acceptable lifetime risk for both males and females. Owing to the higher body weight, both THQ and CR were generally lower for males than for females.
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Affiliation(s)
- Tian-Tian Zuo
- Xi'an Jiaotong University, No. 28 Xianning Xi Road, Xi'an, 710049, Shanxi, China
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Yao-Lei Li
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Huai-Zhen He
- Xi'an Jiaotong University, No. 28 Xianning Xi Road, Xi'an, 710049, Shanxi, China
| | - Hong-Yu Jin
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Lei Zhang
- China National Center for Food Safety Risk Assessment, Beijing, China
| | - Lei Sun
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Fei Gao
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Qi Wang
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China
| | - Yuan-Jun Shen
- College of Pharmacy, University of Rhode Island, South Kingstown, RI, 02881, USA
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control, No. 2 Tiantan Xili, Dongcheng District, Beijing, 100050, China.
| | - Lang-Chong He
- Xi'an Jiaotong University, No. 28 Xianning Xi Road, Xi'an, 710049, Shanxi, China.
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Cai LM, Wang QS, Luo J, Chen LG, Zhu RL, Wang S, Tang CH. Heavy metal contamination and health risk assessment for children near a large Cu-smelter in central China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 650:725-733. [PMID: 30212703 DOI: 10.1016/j.scitotenv.2018.09.081] [Citation(s) in RCA: 172] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/21/2018] [Accepted: 09/06/2018] [Indexed: 05/06/2023]
Abstract
Nonferrous metallurgy is causing significant concerns due to its emissions of heavy metals into environment, degrading environmental quality, and consequently posing high risks to human health. In this study, the concentration levels of Cadmium (Cd), Copper (Cu), Lead (Pb), and Arsenic (As) were investigated in soil, crop, well water, and fish samples collected around the Daye Copper Smelter in Hubei province, China, and the potential health risks were assessed for local children. The results showed that soils near the smelter were heavily polluted by Cd, Cu, Pb, and As, with the mean concentrations of 4.87, 195.26, 92.65, and 35.84 mg/kg, respectively, which were significantly higher than the values of soil Cd (0.18 mg/kg), Cu (32.84 mg/kg), Pb (28.46 mg/kg), and As (13.65 mg/kg) in the reference area (p < 0.001). The concentrations of Cd and As in vegetable samples collected from smelter-affected area exceeded the maximum permissible level (MPL) for food in China by 82% and 39%, respectively. The concentrations of Cd and Pb in rice grain harvested from smelter-affected area were 9.35 and 1.35 times higher than the corresponding MPL, respectively. The concentrations of Cd, As, and Cu in fish muscle from smelter-affected area exceeded the national MPL by 72%, 41%, and 24% of analyzed samples, respectively. The concentrations of Cd (p < 0.05) and As (p < 0.01) in well water were significantly higher in the smelter-affected area than those in the reference area, respectively. The health risks to local children in the smelter-affected area were 30.25 times higher than the acceptable level of 1, and most of the risks were resulted from Cd (46%), As (27%) and Pb (20%). The intake of crops was a major source (78%) to health risks for local children.
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Affiliation(s)
- Li-Mei Cai
- College of Resources and Environment, Yangtze University, Wuhan 430100, China; Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
| | - Qiu-Shuang Wang
- College of Resources and Environment, Yangtze University, Wuhan 430100, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan 430100, China
| | - Lai-Guo Chen
- South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.
| | - Run-Liang Zhu
- Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Shuo Wang
- College of Resources and Environment, Yangtze University, Wuhan 430100, China; Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Cui-Hua Tang
- College of Resources and Environment, Yangtze University, Wuhan 430100, China; Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
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41
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Pollution Assessment of Trace Elements in Agricultural Soils around Copper Mining Area. SUSTAINABILITY 2018. [DOI: 10.3390/su10124533] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Agricultural soils from Dongchuan copper mining area were sampled and analyzed to determine the concentrations of selected trace elements, namely As, Cd, Cr, Cu, Hg, Ni, Pb and Zn. The main objectives of this study were: (1) To determine the levels of trace elements and their spatial distribution in soils; (2) to evaluate the potential ecological risk; and (3) to identify the main sources of risk element pollution. The environmental risks were assessed using five different contamination and pollution indexes. Descriptive and exploratory statistical analyses were performed to identify the relations among the trace elements in soils and possible sources of pollution. Although the values of As, Cu and Zn in the soils were significantly higher than Yunnan background values and exceeded the limits of the Chinese national standards in several sampling points, the most serious threat for the ecosystem and human health was represented by Cd. The main sources of Cu and As were identified mining activities, airborne particulates from smelters and the weathering of tailings, and partly also agricultural fertilizers. The major source of Cd was agricultural fertilizers and partly sources associated with mining and smelting activities.
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42
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Zhang T, Pan D, Su M, Fu LM, Miao CY, Yan QY, Wang J, Yang LG, Wang SK, Sun GJ. Determination of dietary nitrite in patients with esophageal pre-cancerous lesion and normal people: a duplicate diet study. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2018; 35:2298-2308. [DOI: 10.1080/19440049.2018.1546906] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, P.R. China
| | - Da Pan
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, P.R. China
| | - Ming Su
- Chronic Noncommunicable Disease Prevention Department, Huai’an District Center for Disease Control and Prevention, Huai’an, P.R. China
| | - Ling-Meng Fu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, P.R. China
| | - Cai-Yun Miao
- Chronic Noncommunicable Disease Prevention Department, Huai’an District Center for Disease Control and Prevention, Huai’an, P.R. China
| | - Qing-Yang Yan
- Chronic Noncommunicable Disease Prevention Department, Huai’an District Center for Disease Control and Prevention, Huai’an, P.R. China
| | - Jing Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, P.R. China
| | - Li-Gang Yang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, P.R. China
| | - Shao-Kang Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, P.R. China
| | - Gui-Ju Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, P.R. China
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The Release of Antimony from Mine Dump Soils in the Presence and Absence of Forest Litter. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15122631. [PMID: 30477215 PMCID: PMC6313715 DOI: 10.3390/ijerph15122631] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/15/2018] [Accepted: 11/21/2018] [Indexed: 12/04/2022]
Abstract
This study examined the changes in antimony (Sb) solubility in soils, using organic matter introduced with forest litter, in various moisture conditions. Soils containing 12.8–163 mg/kg Sb were taken from the top layers of dumps in former mining sites in the Sudetes, South-West Poland. Soils were incubated for 90 days either in oxic or waterlogged conditions, with and without the addition of 50 g/kg of beech forest litter (FL). Water concentrations of Sb in some experimental treatments greatly exceeded the threshold values for good quality underground water and drinking water, and reached a maximum of 2.8 mg/L. The changes of Sb solubility caused by application of FL and prolonged waterlogging were, in various soils, highly divergent and in fact unpredictable based on the main soil properties. In some soils, the application of forest litter prompted the release of Sb from soil solid phase, while in the others it acted contradictorily. Soil waterlogging resulted, in most cases, in the increased release of Sb compared to oxic conditions, and this effect was enhanced by the addition of forest litter. However, in two soils the presence of forest litter counteracted the effects of waterlogging and diminished the quantities of released Sb.
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Li Q, Wang H, Wang H, Li Y, Wang Z, Zhang X. Effect of arsenate on endogenous levels of cytokinins with different existing forms in two Pteris species. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 132:652-659. [PMID: 30340177 DOI: 10.1016/j.plaphy.2018.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 09/25/2018] [Accepted: 10/09/2018] [Indexed: 06/08/2023]
Abstract
Our previous results showed that content of trans-zeatin (tZ) increases in leaves of heavy metal hyperaccumulators but decreases in non-hyperaccumulators growing in multiple heavy metal polluted soils. However, the relationship between arsenic (As) accumulation and endogenous forms of cytokinins (CTKs) in As hyperaccumulators remains unknown. Here a hydroponic experiment was conducted to compare the CTK forms in the As hyperaccumulator Pteris cretica var. nervosa and non-hyperaccumulator Pteris ensiformis under arsenate stress (0, 2, 5, and 10 mg L-1). A simple and cost-effective procedure for the determination of CTK forms in plants was established, and a stepwise regression analysis was used to study the relationship among total As contents and different forms of endogenous CTKs in fronds of two plants. The results showed that the optimized chromatographic parameters were Zobax SB-C18 column (5 μm × 4.6 mm × 250 mm), UV detection detector at 269 nm, a flow rate of 0.6 mL min-1, constant temperature of 45 °C and gradient elution with methanol-acetonitrile-1% acetic acid. Contents of chlorophylls in the fronds of P. ensiformis were significantly decreased with addition of As compared to P. cretica var. nervosa. Furthermore, the total As content in fronds of P. cretica var. nervosa was positively correlated to the contents of N6-(2-isopentenyl) adenine-7-β-D-glucoside (iP7G) and N6-(2-isopentenyl) adenosine (iPR). However, the total As content in fronds of P. ensiformis was negatively correlated to its trans-zeatin riboside (ZR) content. Therefore, iP7G and iPR could positively improve As accumulation by P. cretica var. nervosa.
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Affiliation(s)
- Qinchun Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Hongbin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China.
| | - Haijuan Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yang Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Zhongzhen Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xuemei Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
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Parmar S, Li Q, Wu Y, Li X, Yan J, Sharma VK, Wei Y, Li H. Endophytic fungal community of Dysphania ambrosioides from two heavy metal-contaminated sites: evaluated by culture-dependent and culture-independent approaches. Microb Biotechnol 2018; 11:1170-1183. [PMID: 30256529 PMCID: PMC6196397 DOI: 10.1111/1751-7915.13308] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/30/2018] [Accepted: 08/01/2018] [Indexed: 01/26/2023] Open
Abstract
Endophytic fungal communities of Dysphania ambrosioides, a hyperaccumulator growing at two Pb-Zn-contaminated sites, were investigated through culture-dependent and culture-independent approaches. A total of 237 culturable endophytic fungi (EF) were isolated from 368 tissue (shoot and roots) segments, and the colonization rate (CR) ranged from 9.64% to 65.98%. The isolates were identified to 43 taxa based on morphological characteristics and rDNA ITS sequence analysis. Among them, 13 taxa (30.23%) were common in plant tissues from both sites; however, dominant EF were dissimilar. In culture-dependent study, 1989 OTUs were obtained through Illumina Miseq sequencing, and dominant EF were almost same in plant tissues from both sites. However, some culturable EF were not observed in total endophytic communities. We suggest that combination of both culture-dependent and culture-independent methods will provide more chances for the precise estimation of endophytic fungal community than using either of them. The tissue had more influence on the culturable fungal community structure, whereas the location had more influence on the total fungal community structure (including culturable and unculturable). Both culture-dependent and culture-independent studies illustrated that endophytic fungal communities of D. ambrosioides varied across the sites, which suggested that HM concentration of the soil may have some influence on endophytic fungal diversity.
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Affiliation(s)
- Shobhika Parmar
- Medical School of Kunming University of Science and TechnologyKunming650500China
| | - Qiaohong Li
- The First People's Hospital of Yunnan ProvinceKunming650032China
- The Affiliated Hospital of Kunming University of Science and TechnologyKunming650500China
| | - Ying Wu
- The First People's Hospital of Yunnan ProvinceKunming650032China
- The Affiliated Hospital of Kunming University of Science and TechnologyKunming650500China
| | - Xinya Li
- Medical School of Kunming University of Science and TechnologyKunming650500China
| | - Jinping Yan
- Medical School of Kunming University of Science and TechnologyKunming650500China
| | - Vijay K. Sharma
- Medical School of Kunming University of Science and TechnologyKunming650500China
| | - Yunlin Wei
- Medical School of Kunming University of Science and TechnologyKunming650500China
| | - Haiyan Li
- Medical School of Kunming University of Science and TechnologyKunming650500China
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Li X, Li Z, Lin CJ, Bi X, Liu J, Feng X, Zhang H, Chen J, Wu T. Health risks of heavy metal exposure through vegetable consumption near a large-scale Pb/Zn smelter in central China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:99-110. [PMID: 29879579 DOI: 10.1016/j.ecoenv.2018.05.080] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
Smelting of nonferrous metals is an important source of heavy metals in surface soil. The crops/vegetables grown on contaminated soil potentially impose adverse effects on human health. In this study, the contamination level of five heavy metals (Hg, Pb, Zn, Cd and Cu) in ten types of vegetables grown nearby a large scale Pb/Zn smelter in Hunan Province, China and the health risk associated with their consumption are assessed. Based on the data obtained from 52 samples, we find that Pb and Cd contributed to the greatest health risk and leafy vegetables tend to be more contaminated than non-leafy vegetables. Within 4 km radius of the smelter, over 75% of vegetable samples exceeded the national food standard for Pb; over 47% exceeded the Cd standard; and 7% exceeded the Hg standard. Heavy metal concentrations in vegetables measured within the 4 km radius are on average three times more elevated compared to those found at the control area 15 km away. Heavy metals in vegetables have dual sources of root absorption from soil and leaf adsorption from atmosphere. Health risk in terms of the hazard index (HI) at contaminated areas are 3.66 and 3.14 for adults and children, respectively, suggesting adverse health effects would occur. HI for both groups are mainly contributed by Pb (48%) and Cd (40%). Fortunately, vegetable samples collected at the control area are considered safe to consume.
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Affiliation(s)
- Xinyu Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhonggen Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China.
| | - Che-Jen Lin
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; Center for Advances in Water and Air Quality, Lamar University, Beaumont, TX, USA; Department of Civil and Environmental Engineering, Lamar University, Beaumont, TX, USA
| | - Xiangyang Bi
- State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China
| | - Jinling Liu
- State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China.
| | - Hua Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Ji Chen
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Tingting Wu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
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Wang W, Liu Y, Liu X, Deng B, Lu S, Zhang Y, Bi B, Ren Z. Equilibrium adsorption study of the adsorptive removal of Cd 2+ and Cr 6+ using activated carbon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:25538-25550. [PMID: 29959734 DOI: 10.1007/s11356-018-2635-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
The performance of activated carbon (AC) with respect to characterization, adsorption kinetics, thermodynamics, and isotherms was addressed in this study. The effects of initial concentration, pH, contact time, ion strength, and temperature on removal efficiency were also studied. The adsorption isotherms of Cd2+ and Cr6+ on activated carbon can fit the Langmuir model well, and correlation coefficients were above 0.99, all higher than the Freundlich and Temkin models. The maximum adsorption quantities of Cd2+ and Cr6+ were 19.380 and 19.305 mg g-1 at 25 °C, respectively. The adsorption capacities of Cd2+ and Cr6+ are clearly pH dependent. The kinetics of the removal of Cd2+ and Cr6+ was in agreement with a pseudo-second-order model, and the adsorption efficiency of Cd2+ is higher than that of Cr6+. The thermodynamic results showed that increased temperature is favorable to adsorption. The speciation on activated carbon was mainly residual Cd2+ and Cr6+, and the potential ecological risk of Cd2+ is higher than that of Cr6+. The adsorptions of Cd2+ and Cr6+ on activated carbon were dominated by chelation and ion exchange, respectively.
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Affiliation(s)
- Weiliang Wang
- College of Geography and Environment, Shandong Normal University, Jinan, 250358, People's Republic of China.
- Institute of Environment and Ecology, Shandong Normal University, Jinan, 250358, People's Republic of China.
| | - Ying Liu
- College of Geography and Environment, Shandong Normal University, Jinan, 250358, People's Republic of China
- Institute of Environment and Ecology, Shandong Normal University, Jinan, 250358, People's Republic of China
| | - Xiaohui Liu
- School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Baojun Deng
- Jinan Environmental Monitoring Center, Jinan, 250014, People's Republic of China
| | - Shaoyong Lu
- Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Yaru Zhang
- College of Geography and Environment, Shandong Normal University, Jinan, 250358, People's Republic of China
| | - Bin Bi
- Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Zongming Ren
- College of Geography and Environment, Shandong Normal University, Jinan, 250358, People's Republic of China.
- Institute of Environment and Ecology, Shandong Normal University, Jinan, 250358, People's Republic of China.
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48
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Li Q, Wang H, Wang H, Zheng W, Wu D, Wang Z. Effects of kinetin on plant growth and chloroplast ultrastructure of two Pteris species under arsenate stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 158:37-43. [PMID: 29656162 DOI: 10.1016/j.ecoenv.2018.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/19/2018] [Accepted: 04/04/2018] [Indexed: 05/11/2023]
Abstract
Cytokinins (CTKs) are effective in alleviating abiotic stresses on plants, but little information is available regarding the effects of CTKs on arsenic (As) accumulation and changes of chloroplast ultrastructure in plants with different As-accumulating ability. Here a hydroponic experiment was designed to evaluate the effects of different concentration of kinetin (KT, 0-40 mg/L) on growth and chloroplast ultrastructure of As hyperaccumulator Pteris cretica var. nervosa and non-hyperaccumulator Pteris ensiformis treated by 5 mg/L arsenate for 14 days. The growth parameters, As accumulation, contents of photosynthetic pigments and chloroplast ultrastructure were examined. The results showed that KT promoted the growth of two plants, and significantly increased As accumulation and translocation in P. cretica var. nervosa and P. ensiformis at 5 and 20 mg/L, respectively. Additionally, the contents of chlorophyll a and carotenoid in two plants showed no significant difference at 20 mg/L KT compared to the control. Chloroplast ultrastructure of P. cretica var. nervosa was integral with KT application. Comparatively, the swollen chloroplasts were increased, plasmolysis appeared, and chloroplast grana slice layers and stroma lamellas were clearly separated or distorted at 5 mg/L KT in P. ensiformis. The length and width of chloroplasts in P. cretica var. nervosa were significantly increased with KT addition compared to the control. However, the length of chloroplasts in P. ensiformis was significantly decreased but their width showed no significant change. Furthermore, the deterioration of chloroplast ultrastructure in P. ensiformis was ameliorated by 40 mg/L KT. These results suggested that KT increased As accumulation and was beneficial to maintain the photosynthetic pigments for a good growth of plants. Therefore, KT could maintain and reorganize the ultrastructure integrality of As-stressed chloroplasts to some extent for the two plants, especially at high concentration.
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Affiliation(s)
- Qinchun Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
| | - Hongbin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China.
| | - Haijuan Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
| | - Wen Zheng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
| | - Dongmo Wu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
| | - Zhongzhen Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
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Wu W, Jiang S, Zhao Q, Zhang K, Wei X, Zhou T, Liu D, Zhou H, Zhong R, Zeng Q, Cheng L, Miao X, Lu Q. Associations of environmental exposure to metals with the risk of hypertension in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 622-623:184-191. [PMID: 29216461 DOI: 10.1016/j.scitotenv.2017.11.343] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 11/29/2017] [Accepted: 11/29/2017] [Indexed: 06/07/2023]
Abstract
Hypertension contributes largely to the global burden of disease and mortality. Environmental exposure to metals might be a causative factor for hypertension, but the association remains unclear. The present case-control study of 502 hypertension patients and 502 healthy participants aimed to evaluate the potential relationships between the concentrations of 20 metal in urine and the risk of hypertension in a Chinese population. Multivariate logistic analyses adjusted for potential confounders were performed separately considering the effects of single and multi-metal. We found the increasing trends of urinary Fe, Co, Ni, Cu, Zn and Sr quartiles and the decreasing trends of urinary V and Rb quartiles with the ORs for hypertension. These dose-response associations were confirmed in the RCS models and remained robust in the multi-metal model. Urinary Hg quartiles were positively associated with the risk of hypertension in the models of single-metal and multi-metal. Urinary Cd quartiles were inversely associated with the risk of hypertension in the multi-metal model. Besides, modification effects of gender, BMI and smoking status on the associations of the exposure to various metals with the risk of hypertension were also suggested in the subgroup analysis. Our findings suggest that environmental exposure to V, Fe, Co, Ni, Cu, Zn, Rb, Sr, Cd and Hg might be related with the prevalence of hypertension. Further studies with prospective design should be conducted to confirm these findings.
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Affiliation(s)
- Weixiang Wu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Shunli Jiang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Qiang Zhao
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Ke Zhang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, #1277 Jiefang Road, Wuhan, Hubei 430022, China
| | - Xiaoyun Wei
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Tong Zhou
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Dayang Liu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Hao Zhou
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Rong Zhong
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Qiang Zeng
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Liming Cheng
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Miao
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Qing Lu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China.
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50
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Meena RAA, Sathishkumar P, Ameen F, Yusoff ARM, Gu FL. Heavy metal pollution in immobile and mobile components of lentic ecosystems-a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:4134-4148. [PMID: 29247419 DOI: 10.1007/s11356-017-0966-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 12/06/2017] [Indexed: 05/22/2023]
Abstract
With growing population and urbanization, there is an increasing exploitation of natural resources, and this often results to environmental pollution. In this review, the levels of heavy metal in lentic compartments (water, sediment, fishes, and aquatic plants) over the past two decades (1997-2017) have been summarized to evaluate the current pollution status of this ecosystem. In all the compartments, the heavy metals dominated are zinc followed by iron. The major reason could be area mineralogy and lithogenic sources. Enormous quantity of metals like iron in estuarine sediment is a very natural incident due to the permanently reducing condition of organic substances. Contamination of cadmium, lead, and chromium was closely associated with anthropogenic origin. In addition, surrounding land use and atmospheric deposition could have been responsible for substantial pollution. The accumulation of heavy metals in fishes and aquatic plants is the result of time-dependent deposition in lentic ecosystems. Moreover, various potential risk assessment methods for heavy metals were discussed. This review concludes that natural phenomena dominate the accumulation of essential heavy metals in lentic ecosystems compared to anthropogenic sources. Amongst other recent reviews on heavy metals from other parts of the world, the present review is executed in such a way that it explains the presence of heavy metals not only in water environment, but also in the whole of the lentic system comprising sediment, fishes, and aquatic plants.
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Affiliation(s)
- Ramakrishnan Anu Alias Meena
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, People's Republic of China
- Department of Environmental Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Palanivel Sathishkumar
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, People's Republic of China
| | - Fuad Ameen
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abdull Rahim Mohd Yusoff
- Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia
| | - Feng Long Gu
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, People's Republic of China.
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