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Tessele I, Dal Molin TR, Dognini J, Noremberg S, de Carvalho LM. Investigation of thallium as a contaminant in dietary supplements marketed for weight loss and physical fitness. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2024; 41:800-810. [PMID: 38781478 DOI: 10.1080/19440049.2024.2354494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
Dietary supplements are drastically growing as a category of consumer products all over the world. The abuse of supplements marketed for slimming purposes and physical fitness has been observed worldwide in recent years, which raises concerns in terms of public health. In this study, different types of dietary supplements marketed and delivered through the e-commerce were studied for the determination of thallium as a hazardous inorganic contaminant. The total content of thallium was determined by a sensitive voltammetric method after a microwave-assisted oxidative digestion of the sample. In addition, a comparative spectrometric method was applied for validation of the results in the samples. The maximum concentration found for thallium was found to be 2.89 mg kg-1, which well agree with the comparative measurement. Considering the 32 studied formulations, it can be pointed out that ∼24% of the of dietary supplements presented Tl concentrations at concentrations higher than 1 mg kg-1. The results permitted the assessment of the health risk related to thallium from contaminated samples, based on the calculation of the estimated daily intake (EDI) and the risk quotient (HQ). The highest daily intake of thallium was calculated as 82.0 µg day-1 in a protein-based supplement, which is equivalent to an EDI of 1.17 µg kg-1 day-1. This work highlights the need to develop regulations on the limits of toxic elements such as thallium in widely consumed dietary supplements, as well as an in-depth look at the adverse effects caused by this element in the human body.
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Affiliation(s)
- Igor Tessele
- Department of Chemistry, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Thaís R Dal Molin
- Graduate Program of Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | | | - Simone Noremberg
- Department of Chemistry, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Leandro M de Carvalho
- Department of Chemistry, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
- Graduate Program of Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
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2
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Deng P, Lin K, Yuan W, Gomez MA, She J, Yu S, Sun M, Liu Y, Wang J, Chen D, Liu J. Risk assessment and strontium isotopic tracing of potentially toxic metals in creek sediments around a uranium mine, China. CHEMOSPHERE 2024; 353:141597. [PMID: 38432466 DOI: 10.1016/j.chemosphere.2024.141597] [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: 01/19/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
The contamination of creek sediments near industrially nuclear dominated site presents significant environmental challenges, particularly in identifying and quantifying potentially toxic metal (loid)s (PTMs). This study aims to measure the extent of contamination and apportion related sources for nine PTMs in alpine creek sediments near a typical uranium tailing dam from China, including strontium (Sr), rubidium (Rb), manganese (Mn), lithium (Li), nickel (Ni), copper (Cu), vanadium (V), cadmium (Cd), zinc (Zn), using multivariate statistical approach and Sr isotopic compositions. The results show varying degrees of contamination in the sediments for some PTMs, i.e., Sr (16.1-39.6 mg/kg), Rb (171-675 mg/kg), Mn (224-2520 mg/kg), Li (11.6-78.8 mg/kg), Cd (0.31-1.38 mg/kg), and Zn (37.1-176 mg/kg). Multivariate statistical analyses indicate that Sr, Rb, Li, and Mn originated from the uranium tailing dam, while Cd and Zn were associated with abandoned agricultural activities, and Ni, Cu, and V were primarily linked to natural bedrock weathering. The Sr isotope fingerprint technique further suggests that 48.22-73.84% of Sr and associated PTMs in the sediments potentially derived from the uranium tailing dam. The combined use of multivariate statistical analysis and Sr isotopic fingerprint technique in alpine creek sediments enables more reliable insights into PTMs-induced pollution scenarios. The findings also offer unique perspectives for understanding and managing aqueous environments impacted by nuclear activities.
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Affiliation(s)
- Pengyuan Deng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Ke Lin
- Earth Observatory of Singapore and Asian School of the Environment, Nanyang Technological University, Singapore
| | - Wenhuan Yuan
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Mario Alberto Gomez
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Jingye She
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Shan Yu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Mengqing Sun
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Yanyi Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Jin Wang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China.
| | - Diyun Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, China.
| | - Juan Liu
- Key Laboratory of Water Quality and Conservation in the PRD, Ministry of Education, Guangzhou University, Guangzhou, China.
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3
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Ning Q, Shao B, Huang X, He M, Tian L, Lin Y. Bioaccumulation, biomagnification, and ecological risk of trace metals in the ecosystem around oilfield production area: A case study in Shengli Oilfield. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 196:87. [PMID: 38147204 DOI: 10.1007/s10661-023-12251-0] [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: 10/07/2023] [Accepted: 12/14/2023] [Indexed: 12/27/2023]
Abstract
The production for crude oil usually leads to contamination of the soil with trace metals and organic contaminants from spilled petroleum. Organic contaminants were generally paid more attention than trace metals in the oilfield pollution. Many studies have investigated the impacts of some petroleum hydrocarbon pollutants, however, the impacts and risk assessment of trace metals remain largely unexplored. Moreover, under some circumstances, the risks associated with trace metals are not necessarily lower than those associated with organic contaminants. This study aimed to investigate methods to evaluate the possible risks associated with 11 trace metals (Ti, Ba, Sr, Rb, V, Li, Mo, Co, Cs, Bi, and Tl) in soil and biota samples from the Shengli Oilfield using ICP-MS. The results showed that 11 trace metals in the surface soils exceeded the local background levels. The geo-accumulation index (Igeo) indicated that the soils had light-moderate to moderate contamination levels, with higher Igeo value of Ba, V, Li, Mo, Co, and Cs. The individual potential ecological risk indices ([Formula: see text]) demonstrated moderate Bi and Tl pollution in soils. Comparatively, the [Formula: see text] is recommended for the risk assessment of trace metals on the ecosystem around the oilfield area. Mo, Bi, and Sr easily accumulate in plants, as reflected by their bioaccumulation factor. Ti, Ba, V, Li, Co, Cs, Bi, and Tl exhibited considerable biomagnification, particularly in birds. In this study, trace metals showed considerable bioaccumulation and biomagnification, and the risks of these trace metals on the ecosystem around oilfield production area need more attention.
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Affiliation(s)
- Qian Ning
- Hubei Key Laboratory of Petroleum Geochemistry and Environment (Yangtze University), Wuhan, 430100, China
- School of Resources and Environment, Yangtze University, Wuhan, 430100, China
| | - Bo Shao
- Hubei Key Laboratory of Petroleum Geochemistry and Environment (Yangtze University), Wuhan, 430100, China
- School of Resources and Environment, Yangtze University, Wuhan, 430100, China
| | - Xin Huang
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Mei He
- Hubei Key Laboratory of Petroleum Geochemistry and Environment (Yangtze University), Wuhan, 430100, China.
- School of Resources and Environment, Yangtze University, Wuhan, 430100, China.
| | - Lei Tian
- Hubei Key Laboratory of Petroleum Geochemistry and Environment (Yangtze University), Wuhan, 430100, China
- School of Petroleum Engineering, Yangtze University, Wuhan, 430100, China
| | - Yan Lin
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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Sönmez VZ, Akarsu C, Sivri N. The new era hypothesis of coastal degradation: G(s) elements-gallium, gadolinium, and germanium. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:8803-8822. [PMID: 37755578 DOI: 10.1007/s10653-023-01743-0] [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: 04/14/2023] [Accepted: 08/23/2023] [Indexed: 09/28/2023]
Abstract
Mining of precious metals contributes to environmental pollution, especially in coastal areas, and conventional treatment methods are not always effective in removing metal contaminants. Some of these metals, such as gadolinium, germanium and gallium, have caused increasing concern worldwide, as little is known about their current concentrations in the aquatic environment and their biological significance. Therefore, the aim of this study was to determine for the first time the variation of average G(s) concentrations (gallium, gadolinium and germanium) by month/season/site differences along the coast of Istanbul. The ecological risk index was calculated to assess the contamination of seawater and to serve as a diagnostic tool for the mitigation of water pollution. The average distribution G(s) in seawater was in the following order: Ga > Gd > Ge. In addition, the potential ecological risk in the sampling areas ranged from 68 to 1049. Of the three metals, Gd poses the highest ecological risk (grade III). In the spatial distribution of ecological risks, Gd mainly originated from discharges from wastewater treatment plants. Therefore, the sources of the anthropogenic Gd anomaly in wastewater should be identified, as this indicates the possibility of human exposure to potentially harmful anthropogenic compounds.
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Affiliation(s)
- Vildan Zülal Sönmez
- Department of Environmental Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ceyhun Akarsu
- Department of Environmental Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey.
| | - Nüket Sivri
- Department of Environmental Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Liu J, Yuan W, Ouyang Q, Bao Z, Xiao J, Xiong X, Cao H, Zhong Q, Wan Y, Wei X, Zhang Y, Xiao T, Wang J. A novel application of thallium isotopes in tracing metal(loid)s migration and related sources in contaminated paddy soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 882:163404. [PMID: 37059145 DOI: 10.1016/j.scitotenv.2023.163404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/05/2023] [Accepted: 04/05/2023] [Indexed: 06/01/2023]
Abstract
Thallium (Tl) is a highly toxic heavy metal, which is harmful to plants and animals even in trace amounts. Migration behaviors of Tl in paddy soils system remain largely unknown. Herein, Tl isotopic compositions have been employed for the first time to explore Tl transfer and pathway in paddy soil system. The results showed considerably large Tl isotopic variations (ε205Tl = -0.99 ± 0.45 ~ 24.57 ± 0.27), which may result from interconversion between Tl(I) and Tl(III) under alternative redox conditions in the paddy system. Overall higher ε205Tl values of paddy soils in the deeper layers were probably attributed to abundant presence of Fe/Mn (hydr)oxides and occasionally extreme redox conditions during alternative dry-wet process which oxidized Tl(I) to Tl(III). A ternary mixing model using Tl isotopic compositions further disclosed that industrial waste contributed predominantly to Tl contamination in the studied soil, with an average contribution rate of 73.23%. All these findings indicate that Tl isotopes can be used as an efficient tracer for fingerprinting Tl pathway in complicated scenarios even under varied redox conditions, providing significant prospect in diverse environmental applications.
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Affiliation(s)
- Juan Liu
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Wenhuan Yuan
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Qi'en Ouyang
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Zhi'an Bao
- State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China
| | - Jun Xiao
- SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences (IEECAS), Xi'an 710061, China
| | - Xinni Xiong
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Huimin Cao
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Qiaohui Zhong
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yuebing Wan
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Xudong Wei
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Agripolis Campus, Viale dell'Università, 16, 35020 Legnaro, PD, Italy
| | - Yongqi Zhang
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Tangfu Xiao
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Jin Wang
- School of Environmental Science and Engineering and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
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Wang Y, Cheng H. Soil heavy metal(loid) pollution and health risk assessment of farmlands developed on two different terrains on the Tibetan Plateau, China. CHEMOSPHERE 2023:139148. [PMID: 37290519 DOI: 10.1016/j.chemosphere.2023.139148] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/31/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023]
Abstract
The quality of farmland soils on the Tibetan Plateau is important because of the region's ecological vulnerability and their close link with local food security. Investigation on the pollution status of heavy metal (loid)s (HMs) in the farmlands of Lhasa and Nyingchi on the Tibetan Plateau, China revealed that Cu, As, Cd, Tl, and Pb were apparently enriched, with the soil parent materials being the primary sources of the soil HMs. Overall, the farmlands in Lhasa had higher contents of HMs compared to those in the farmlands of Nyingchi, which could be attributed to the fact that the former were mainly developed on river terraces while the latter were mainly developed on the alluvial fans in mountainous areas. As displayed the most apparent enrichment, with the average concentrations in the vegetable field soils and grain field soils of Lhasa being 2.5 and 2.2 times higher compared to those of Nyingchi. The soils of vegetable fields were more heavily polluted than those of grain fields, probably due to the more intensive input of agrochemicals, particularly the use of commercial organic fertilizers. The overall ecological risk of the HMs in the Tibetan farmlands was low, while Cd posed medium ecological risk. Results of health risk assessment show that ingestion of the vegetable field soils could pose elevated health risk, with children facing greater risk than adults. Among all the HMs targeted, Cd had relatively high bioavailability of up to 36.2% and 24.9% in the vegetable field soils of Lhasa and Nyingchi, respectively. Cd also showed the most significant ecological and human health risk. Thus, attention should be paid to minimize further anthropogenic input of Cd to the farmland soils on the Tibetan Plateau.
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Affiliation(s)
- Yafeng Wang
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Hefa Cheng
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
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7
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Han Y, Xun F, Zhao C, Li B, Luo W, Feng M, Xu D, Xing P, Wu QL. Evaluating potential ecological risks of emerging toxic elements in lacustrine sediments: A case study in Lake Fuxian, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 323:121277. [PMID: 36796668 DOI: 10.1016/j.envpol.2023.121277] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 01/15/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
The fragile ecosystems of plateau lakes are in face of ecological risks from emerging toxic elements. Beryllium (Be) and thallium (Tl) have been considered priority control metals in recent years owing to their persistence, toxicity, and bioaccumulation. However, the toxic factors of Be and Tl are scarce and ecological risks of them in the aquatic environment were seldom investigated. Hence, this study developed a framework for calculating the potential ecological risk index (PERI) of Be and Tl in aquatic systems and used it to assess the ecological risks of Be and Tl in Lake Fuxian, a plateau lake in China. The toxicity factors of Be and Tl were calculated to be 40 and 5, respectively. In sediments of Lake Fuxian, the concentrations of Be and Tl were between 2.18 and 4.04 mg/kg and 0.72-0.94 mg/kg, respectively. The spatial distribution indicated that Be was more abundant in the eastern and southern regions, and Tl had higher concentrations near the northern and southern banks, consistent with the distribution of anthropogenic activities. The background values were calculated as 3.38 mg/kg and 0.89 mg/kg for Be and Tl, respectively. In comparison with Be, Tl was more enriched in Lake Fuxian. The increasing Tl enrichment has been attributed to anthropogenic activities (e.g., coal burning and non-ferrous metal production), especially since the 1980s. Generally, Be and Tl contamination has decreased over the past several decades, from moderate to low, since the 1980s. The ecological risk of Tl was low, whereas Be might have caused low to moderate ecological risks. In the future, the obtained toxic factors of Be and Tl in this study can be adopted in assessing the ecological risks of them in sediments. Moreover, the framework can be employed for the ecological risk assessment of other newly emerging toxic elements in the aquatic environment.
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Affiliation(s)
- Yixuan Han
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Fan Xun
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cheng Zhao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Biao Li
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Wenlei Luo
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Muhua Feng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Di Xu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Peng Xing
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Qinglong L Wu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; Center for Evolution and Conservation Biology, Southern Marine Sciences and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
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Akarsu C, Sönmez VZ, Sivri N. Potential Ecological Risk Assessment of Critical Raw Materials: Gallium, Gadolinium, and Germanium. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 84:368-376. [PMID: 37031287 DOI: 10.1007/s00244-023-00994-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
In recent years, the demand for critical raw materials such as gallium, gadolinium and germanium (G(s)) has steadily increased in various industries. However, treatment or recycling rates of these elements are extremely low, which can lead to environmental pollution. An assessment of the ecological risks was also not possible until now, as there were no calculated toxicity coefficients for G(s). In this study, a well-known method, the so-called potential ecological risk index (PERI), was used for the first time to calculate the toxicity coefficients of these elements using data from recent literature studies on G(s) elements. The toxicity coefficient of each of the three elements was determined as five (5). The results show that G(s) have the same toxicity coefficient as Cu and Pb and are higher than that of Cr. The ecological risk index results varied from 4 to 414, 0.98 to 25.98 and 2.50 to 284.64 for Ga, Gd and Ge, respectively. The results show that Ga and Ge pose high ecological risk while the Eri of Gd is low. The toxicity coefficients of these elements have been calculated for the first time in the literature and provide a practical use for calculating the potential ecological risk index.
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Affiliation(s)
- Ceyhun Akarsu
- Department of Environmental Engineering, Istanbul University-Cerrahpaşa, 34320, Avcılar, Istanbul, Turkey
| | - Vildan Zülal Sönmez
- Department of Environmental Engineering, Istanbul University-Cerrahpaşa, 34320, Avcılar, Istanbul, Turkey.
| | - Nüket Sivri
- Department of Environmental Engineering, Istanbul University-Cerrahpaşa, 34320, Avcılar, Istanbul, Turkey
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Yu YJ, Li ZC, Zhou Y, Dong CY, Kuang HX, Zheng T, Xiang MD, Chen XC, Li HY, Zeng XW, Xu SL, Hu LW, Dong GH. Associations between trace level thallium and multiple health effects in rural areas: Chinese Exposure and Response Mapping Program (CERMP). THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160466. [PMID: 36436652 DOI: 10.1016/j.scitotenv.2022.160466] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/25/2022] [Accepted: 11/20/2022] [Indexed: 06/16/2023]
Abstract
Thallium (Tl) is a cumulative high toxicant in the environment, but few studies have investigated the comprehensive health effects underlying chronic Tl exposure at trace levels. This study aims to evaluate the liver, kidney, lung and other potential health effects associated with chronic Tl exposure at trace levels in rural areas of China. Urinary Tl concentrations of 2883 adults from rural areas of 12 provinces in China were measured and 2363 participants were involved in the final analysis. Indicators of liver and kidney functions in the serum, as well as the lung function indicators, were determined in the participants. General linear regression and restricted cubic spline regression were combined to study the associations between urinary Tl and health indicators or outcomes. In this study, the detected rate of Tl in the urine of the participants was 97.28 %. When the urinary Tl concentration was ranged at the fourth quintile, the risk of having liver function disorder was 70 % higher [Odds ratio (OR) = 1.70 (95 % confidence intervals (CI): 1.30, 2.22)] in all the participants, whereas the farmers were more likely to have the disorder [OR = 2.08 (95 % CI: 1.49, 2.92)] than the non-farmers [OR = 1.20 (95 % CI: 0.77, 1.88)]. Nonlinear associations between most of the liver health indicators and urinary Tl were identified, of which serum bilirubin was strongly associated with the elevation of urinary Tl when its concentration was >0.40 μg/g creatinine. Besides, urinary Tl was negatively associated with lung health indicators. Our study proposes the safety re-assessment of the current exposure level of Tl in the environment, especially in rural areas of China.
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Affiliation(s)
- Yun-Jiang Yu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China.
| | - Zhen-Chi Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China.
| | - Yang Zhou
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Chen-Yin Dong
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Hong-Xuan Kuang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Tong Zheng
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Ming-Deng Xiang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Xi-Chao Chen
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Hong-Yan Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Xiao-Wen Zeng
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Shu-Li Xu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Wen Hu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Hui Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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10
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Source apportionment and source-specific risk evaluation of potential toxic elements in oasis agricultural soils of Tarim River Basin. Sci Rep 2023; 13:2980. [PMID: 36806786 PMCID: PMC9941508 DOI: 10.1038/s41598-023-29911-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
As rapidly developing area of intensive agriculture during the past half century, the oases in the source region of the Tarim River have encountered serious environmental challenges. Therefore, a comparative analysis of soil pollution characteristics and source-specific risks in different oases is an important measure to prevent and control soil pollution and provide guidance for extensive resource management in this area. In this study, the concentration of potential toxic elements (PTEs) was analyzed by collecting soil samples from the four oases in the source region of the Tarim River. The cumulative frequency curve method, pollution index method, positive matrix factorization (PMF) model, geographical detector method and health risk assessment model were used to analyze the pollution status and source-specific risk of potential toxic elements in different oases. The results showed that Cd was the most prominent PTE in the oasis agricultural soil in the source region of the Tarim River. Especially in Hotan Oasis, where 81.25% of the soil samples were moderately contaminated and 18.75% were highly contaminated with Cd. The PTEs in the Hotan Oasis corresponded to a moderate level of risk to the ecological environment, and the noncarcinogenic risk of soil PTEs in the four oases to local children exceeded the threshold (TH > 1), while the carcinogenic risk to local residents was acceptable (1E-06 < TCR < 1E-04). The research results suggested that the Hotan Oasis should be the key area for soil pollution control in the source region of the Tarim River, and agricultural activities and natural sources, industrial sources, and atmospheric dust fall are the priority sources that should be controlled in the Aksu Oasis, Kashgar Oasis and Yarkant River Oasis, respectively. The results of this study provide important decision-making support for the protection and management of regional agricultural soil and the environment.
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Zhao Z, Liu Q, Liao Y, Yu P, Tang Y, Liu Q, Shi X, Shou L, Zeng J, Chen Q, Chen J. Ecological risk assessment of trace metals in sediments and their effect on benthic organisms from the south coast of Zhejiang province, China. MARINE POLLUTION BULLETIN 2023; 187:114529. [PMID: 36608476 DOI: 10.1016/j.marpolbul.2022.114529] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/18/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
To explore the ecological risks of trace metals in sediments and their relationship with benthic organisms, 12 trace metals were analyzed and the macrobenthos were identified in the sediments collected from the south coast of Zhejiang province which belongs to the East China Sea. Spatially, the concentrations of most trace metals were high in the estuary, except for Ba and Sr. There was no obvious enrichment for trace metals, except that the concentration of Cd slightly exceeded the coastal background. The ecological risks calculated by the concentrations of Cr, Cd, Cu, Zn, Pb, and Ni in sediments showed that the methods based on sediment quality guidelines could judge the ecological risk more intuitively than the methods based on background value (PN, PLI, RI). The significant correlations between ecological risks and benthos density and biomass revealed the negative impact of trace metals at high concentrations on macrobenthic survival in sediments.
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Affiliation(s)
- Zhengjia Zhao
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Qiang Liu
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou 310012, China.
| | - Yibo Liao
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou 310012, China
| | - Peisong Yu
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Yanbin Tang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Qinghe Liu
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Xiaolai Shi
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Lu Shou
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Jiangning Zeng
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Quanzhen Chen
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Jianfang Chen
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
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Sun F, Tao Y, Liao H, Wu F, Giesy JP, Yang J. Pollution levels and risk assessment of thallium in Chinese surface water and sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158363. [PMID: 36041602 DOI: 10.1016/j.scitotenv.2022.158363] [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: 05/25/2022] [Revised: 07/14/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Thallium (Tl) is one of the most toxic metals and can cause chronic and acute damage to humans. Due to occurrences of incidents involving Tl pollution in China, its potential environmental impacts are receiving increased attention. However, there is still limited information on Tl concentrations in the environment and their risks to human health and wildlife. This paper provides an overview of the contamination of surface water and sediments by Tl across China and assesses the potential risks using several methods. The acute and chronic aquatic life criteria for Tl were determined to be 13.25 and 1.65 μg/L, respectively. The acute and chronic risk quotients (RQs) of Tl in surface water near mining areas were 0.01-41.51 and 0.20-666.67, respectively, indicating medium to high ecological risks to aquatic organisms. Tl in sediments of Pearl and Gaofeng rivers pose a high risk based on the higher geo-accumulation index (Igeo) and potential ecological risk index (EI) values. Exposure parameters for the Chinese population were used to derive health criteria and assess non-carcinogenic risk posed by Tl in centralized drinking water sources. Tl criteria for protection of human health were calculated to be 0.18 μg/L for water+organisms and 0.30 μg/L for organisms only. The non-carcinogenic risk posed by Tl was acceptable. The human health criteria of Tl for children were the lowest among all age groups. The risks posed by Tl to health of children are greater than those for adults. Therefore, emphasis should be placed on protecting children from exposure to Tl. For the Chinese population, the drinking water guidance value to ensure protection of human health was determined to be 0.44 μg/L. The availability of multiple Tl guidance values for designated water uses will improve the environmental regulation and surveillance of Tl pollution in China and other countries.
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Affiliation(s)
- Fuhong Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yanru Tao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Haiqing Liao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - John P Giesy
- Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B3, Canada; Department of Integrative Biology, Michigan State University, East Lansing, MI 48895, USA; Department of Environmental Sciences, Baylor University, Waco, TX 76798-7266, USA
| | - Jiwei Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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13
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Xu F, Wang Y, Chen X, Liang L, Zhang Y, Zhang F, Zhang T. Assessing the environmental risk and mobility of cobalt in sediment near nonferrous metal mines with risk assessment indexes and the diffusive gradients in thin films (DGT) technique. ENVIRONMENTAL RESEARCH 2022; 212:113456. [PMID: 35568234 DOI: 10.1016/j.envres.2022.113456] [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: 02/10/2022] [Revised: 04/18/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
The Jialing River is the tributary of the Yangtze River with the largest drainage area. In recent years, the Jialing River has suffered a series of environmental problems, such as discharge of industrial effluent and sand mining activities, which have severely threatened the aquatic ecosystem of the river. In the present study, we employed risk assessment indexes, sequential extraction and the diffusive gradients in thin films (DGT) technique to assess environmental risks and study the remobilization of cobalt (Co) in sediments. The potential ecological risk index and risk assessment code results demonstrated that Co may pose a low environmental and ecological risk to the local aquatic environment. However, BCR sequential extraction showed that the sum of the F1, F2 and F3 fractions of Co still accounted for over 50% of the Co in the study areas, indicating that sediments may be a source of Co release. The DGT results showed an increasing trend for DGT-labile Co in deep sediments (-8 cm to -12 cm), and the calculated flux values ranged from 0.08 to 15.54 ng cm2·day-1, indicating that Co tends to transfer across the sediment-water interface at all sampling sites. Correlation analysis showed that F1-Co, F2-Co and F3-Co are the fractions readily captured by DGT and can be used for predicting Co remobilization in sediment. Sand mining activities contribute substantially to the release of Co from the F1 and F3 fractions as a result of strong stirring of sediments and introduction of oxygen into the sediments. The reductive dissolution of iron (Fe) and manganese (Mn) hydroxides or oxides causes the release of Co and Fe/Mn in the sediment, which leads to Co release from the reducible fraction. The above work suggests that sand mining in the Jialing River should be reasonably regulated to prohibit illegal sand mining activities.
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Affiliation(s)
- Fei Xu
- College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Yu Wang
- College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Xinyi Chen
- College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Luyu Liang
- College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Yi Zhang
- College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Fubin Zhang
- College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Tuo Zhang
- College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China; Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agriculture Sciences, Beijing, 100081, China.
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Geochemical Speciation, Risk Assessment, and Sources Identification of Heavy Metals in Mangrove Surface Sediments from the Nanliu River Estuary of the Beibu Gulf, China. SUSTAINABILITY 2022. [DOI: 10.3390/su14159112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
To better understand heavy metal pollution and the potential ecological risk of mangrove sediments in the Nanliu River estuary, the speciation and distribution characteristics of heavy metals Fe, Mn, Zn, Co, Ni, Cd, Cr, Cu, and Pb in 13 surface sediments in the study area were determined and analyzed using a modified four-step BCR extraction method, and the ecological risk of heavy metals was assessed using the Geo-accumulation Index (Igeo), Potential Ecological Risk Index (RI), Risk Assessment Code (RAC), Pollution Load Index (PLI), Individual contamination factors (ICF) and Global contamination factor (GCF) methods, and source analyses were performed using correlation analysis and cluster analysis. The results showed that the heavy metal was in the order of Fe > Mn > Cu > Zn > Cr > Pb > Co > Ni > Cd. Except for Fe, Zn, Ni, Cr, Pb, and Co, the average heavy metal content of Mn, Cd, and Cu all exceeded the environmental background value; the Fe, Zn, Co, Ni, Cr, Cu, and Pd are mainly in the residual speciation, while Mn and Cd are mainly weak acid extraction and oxidation, respectively, both of which are predominantly in unstable speciation and are easily released into the environment. Mn and Cd pose a substantial ecological risk, while Cu and Pb present a moderate risk and require precaution. The source analysis results indicate that Fe, Mn, Zn, Ni, Cr, and Pb are most likely to originate from natural sources and the transportation industry, Co and Cu are likely to be mainly from ship manufacturing industrial activities, and Cd is likely to be mainly from agriculture and aquaculture. The GCF and PLI results show that places with high heavy metal enrichment and ecological risk are primarily located in areas with high industrial, agricultural, or human activity impacts.
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15
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Quantitative Source Apportionment and Uncertainty Analysis of Heavy Metal(loid)s in the Topsoil of the Nansi Lake Nature Reserve. SUSTAINABILITY 2022. [DOI: 10.3390/su14116679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
There are numerous coal mines around the Nansi Lake Provincial Nature Reserve, and the mineral resources are extremely rich. Therefore, it is necessary to effectively assess the impact of mining activities on the topsoil. Based on a focused investigation of the contamination status and ecological risks of the Nansi Lake Nature Reserve assisted by GIS, principal component analysis was combined with positive matrix factorization to quantitatively identify the sources and contributions of heavy metal(loid)s in the topsoil before conducting uncertainty analysis. The results showed that coal mining caused higher Cu, Zn, and As contamination levels, while Hg and Cd had higher eco-toxicity and biological sensitivity. Meanwhile, principal component analysis (PCA) and positive matrix factorization (PMF) modeling displayed that Hg (59.2%) was primarily generated by industrial sources (fossil fuel combustion and mercury-containing wastewater); As (70.2%), Ni (65.6%), Cr (63.5%), Pb (61.3%), Cu (60.3%), and Zn (55.8%) were generated mainly from coal mining and processing, coal fossil fuel combustion, and coal gangue dumps; Cd (79.8%) came mainly from agricultural sources. Through uncertainty analysis, the contribution of contamination sources to the heavy metal(loid)s in the topsoil, as estimated by the PMF model, was shown to be quite different. Moreover, heavy metal(loid)s with lower contributions had errors in source identification and factor quantification. This study innovatively warned management to control the hazards of heavy metal(loid)s caused by mining engineering to protect the environment of the Nansi Lake Nature Reserve and revealed the potential harmful pathways of heavy metal(loid)s.
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16
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Meng C, Wang P, Hao Z, Gao Z, Li Q, Gao H, Liu Y, Li Q, Wang Q, Feng F. Ecological and health risk assessment of heavy metals in soil and Chinese herbal medicines. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:817-828. [PMID: 34075510 PMCID: PMC8169384 DOI: 10.1007/s10653-021-00978-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 05/15/2021] [Indexed: 05/06/2023]
Abstract
As medicinal plants can accumulate harmful metals from the native soil, people's consumption of these materials may cause the human body to accumulate toxic metal elements. This has given rise to people's concerns about the quality and safety of Chinese medicinal materials. This research aims to determine the levels of Cr, Ni, Cu, Zn, As, Cd, Hg and Pb in four medicinal plant species (Aster tataricus L.f., Salvia miltiorrhiza Bge, Radix Aucklandiae, Scutellaria baicalensis Georgi) and their native soil. All samples were collected from Qian'an city, beside Yanshan Mountain Range in Tangshan city, east Hebei Province, north China. The contents of heavy metals we detected in the soil conformed to the current limits. However, the Cd and Hg in the soil had a very high potential ecological risk because of their contents higher than the base level of local soil. The contents of Cu, Cd, Hg and Pb in some medicinal herbs exceeded the standards. The content of Cu in Radix Aucklandiae exceeded the standard by 3 times, and others exceeded the standard by less than one time. The comprehensive health risk assessment of heavy metals with chronic non-carcinogenic effects for human body showed that none of the four medicinal herbs can create a health risk. Thus, there is no strong positive correlation between heavy metal pollution in medicinal herbs and that in the native soil. Further research should be investigated to the connection between the heavy metal levels in the soil and plants, and the comprehensive effects of soil, air and irrigation water on heavy metal pollution of Chinese herbal medicines. We also recommend that Chinese herbal medicines should be cultivated and gathered only from controlled or uncontaminated areas.
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Affiliation(s)
- Chunyan Meng
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Peng Wang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Zhuolu Hao
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Zhenjie Gao
- Qian'an Hospital of Traditional Chinese Medicine, Tangshan, Hebei, 064400, People's Republic of China
| | - Qiang Li
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Hongxia Gao
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Yingli Liu
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Qingzhao Li
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Qian Wang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China
| | - Fumin Feng
- College of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, 063210, People's Republic of China.
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Li J, Chen Y, Peng H, He L. A system-scale environmental risk analysis with considering a conceptual conversion from material/energy flow to information flow under uncertainties. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 300:113775. [PMID: 34555769 DOI: 10.1016/j.jenvman.2021.113775] [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: 06/20/2021] [Revised: 09/05/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
A conceptual conversion from material/energy flow to information flow is presented in this study for evaluating network environment analysis (NEA) within the naphthalene-contaminated groundwater ecosystems under stochastic-fuzzy uncertainties. Four components (i.e., vegetation, herbivore, soil microorganism, and carnivore) are considered into the NEA framework for quantifying their direct and integral ecological risks. Carcinogenic risk related to human health concern is also evaluated under four remediation periods. The developed method is then applied to a power plant site. Results reveal that the average naphthalene concentration after pump-and-treat treatment would significantly decrease from 8.672 to 1.232 μg/L when remediation period extends to 10 years. The probabilities of suffering from carcinogenic risk would reach 0.9862, 0.9566, 0.8746, and 0.6142 under different remediation periods. Soil microorganism would receive more input risk than vegetation owing to its higher vulnerability. Although the upper-layer components (such as herbivore and carnivore) are not exposed to risk sources, they would gradually accumulate to a high-level ecological risk through food chains. Sensitivity analysis shows that variations in standard boundaries would have a significant impact on the risks of all components within groundwater ecosystems. This study can offer a novel perspective and methodology for comprehensively assessing the system-scale environment risks.
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Affiliation(s)
- Jing Li
- Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, College of Resources and Environment Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Yizhong Chen
- School of Economics and Management, Hebei University of Technology, Tianjin, 300401, China.
| | - He Peng
- School of Economics and Management, Hebei University of Technology, Tianjin, 300401, China
| | - Li He
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300350, China
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18
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Zhang X, Eto Y, Aikawa M. Risk assessment and management of PM 2.5-bound heavy metals in the urban area of Kitakyushu, Japan. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 795:148748. [PMID: 34328942 DOI: 10.1016/j.scitotenv.2021.148748] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
The sampling campaign of PM2.5 was carried out in Kitakyushu City on the western edge of Japan from 2013 to 2019, and 29 heavy metals loaded in PM2.5 were measured in this study. During the whole sampling period, the PM2.5 mass concentration ranged from 6.3 μg·m-3 to 57.5 μg·m-3, with a median value of 21.3 μg·m-3, and the sum concentration of heavy metals only accounted for 3%. According to the enrichment factor (EF) and geo-accumulation index (Igeo) analysis, it can be known that Se, Mo, Pb, As, Zn, W, Sb, Cu, V, Cr, Ni, and Cs were mainly from anthropogenic sources, which had EF values larger than 10 and Igeo values larger than 0. The comprehensive ecological risk index for these 12 anthropogenic metals was far greater than 600. This large index showed severe metal pollution and very high ecological risk in the urban area of Kitakyushu, Japan, which should be paid great attention. The human health assessment result further revealed that children living at the sampling site faced severe non-carcinogenic risk (HI = 7.8) and moderate carcinogenic risk (CR = 1.2 × 10-4), and oral ingestion was basically the most important exposure pathway, followed by dermal contact and inhalation. The priority control metals included Mo, Se, As, Pb, Sb, and Cr; moreover, the concentration-weighted trajectory analysis (CWT) indicated that Mo, Sb, and Cr were from ship emissions because some shipping routes around the Kyushu area were identified as their potential pollution source regions, while Se, As, and Pb were carried by the air masses from the Asian landmass. Overall, although the PM2.5 concentration in the urban area of Kitakyushu, Japan was not high, the heavy metal risk cannot be overlooked; it is necessary to strengthen the source control of high-risk metals and raise public protection awareness.
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Affiliation(s)
- Xi Zhang
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1, Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan
| | - Yuko Eto
- Institute of Health and Environmental Sciences, City of Kitakyushu, 1-2-1 Shin-ike, Tobata-ku, Kitakyushu, Fukuoka 804-0082, Japan
| | - Masahide Aikawa
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1, Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan.
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19
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Zhou Y, Wang J, Wei X, Ren S, Yang X, Beiyuan J, Wei L, Liu J, She J, Zhang W, Liu Y, Xiao T. Escalating health risk of thallium and arsenic from farmland contamination fueled by cement-making activities: A hidden but significant source. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 782:146603. [PMID: 33836379 DOI: 10.1016/j.scitotenv.2021.146603] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Soil-to-vegetable migration of toxic metal(loid)s is a pivotal pathway of human exposure to chemical intoxication. Thallium (Tl) and arsenic (As) are highly toxic metal(loid)s but their co-occurrence in soils and vegetables remain poorly understood. Herein, the present study focuses on potential health risk arising from co-occurrence of TlAs in various common vegetables cultivated in different farmlands around an industrial area featured by cement production activities. The results reveal obvious co-contamination of Tl (2.28 ± 1.39 mg/kg) and As (102.0 ± 66.7 mg/kg) in soils. Fine particles bearing sulfide and other minerals associated with Tl and As are detected in fly ash from cement plant, which can be migrated by wind over a long distance with hidden but inevitable pollution. Bioaccumulation Factor (BCF) and Enrichment Factor (EF) show that taro and corn preferentially accumulate Tl especially in underground parts. Hazard Quotient (HQ) indicates that consumption of these vegetables may result in chronic poisoning and/or even carcinogenic risk. The study highlights that the pathway and high risk of co-contamination of TlAs in the nearby farmlands posed by cement-making activities should be highly concerned.
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Affiliation(s)
- Yuchen Zhou
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Jin Wang
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Xudong Wei
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Shixing Ren
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Xiao Yang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Jingzi Beiyuan
- School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong, China
| | - Lezhang Wei
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Juan Liu
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China.
| | - Jingye She
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Weilong Zhang
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Yu Liu
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Tangfu Xiao
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
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Zhang J, Gao Y, Yang N, Dai E, Yang M, Wang Z, Geng Y. Ecological risk and source analysis of soil heavy metals pollution in the river irrigation area from Baoji, China. PLoS One 2021; 16:e0253294. [PMID: 34339446 PMCID: PMC8328313 DOI: 10.1371/journal.pone.0253294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 06/01/2021] [Indexed: 11/18/2022] Open
Abstract
Due to various human activities, soil quality under different land use patterns is deteriorating all over the world. This deterioration is very complex in the river irrigation area and is caused by multi-point and non-point source pollution and seasonal variation. Therefore, the characteristics and sources of soil metal pollution in river irrigation area of Baoji city were analyzed. The contents of 8 metals were given by ICP-MS, in the soil samples. Statistical methods, geo-accumulation index (Igeo) and potential ecological risk index (RI) were conducted to evaluate the spatial distribution features, sources and ecological risks of metal contamination from the study area soil. Principal component analysis and cluster analysis were used to analyze the pollution sources of metal. The analysis showed that Cd is the most polluted, and human activities represented a great impact on the contents of Zn, Ni, Cu and Cd in soil, Cd post moderate-strong pollution and strong risk, Cd has a maximum Igeo value of 3.17. All rivers were at risk of moderate pollution levels in study. Among them, some rivers had even reached strong pollution level. Pollution caused by human activities was the most significant pollution source of metal in the research area soil.
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Affiliation(s)
- Jun Zhang
- Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation, Baoji University of Arts and Sciences, Baoji, China
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang’an University, Xi’an, China
| | - Yu Gao
- Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation, Baoji University of Arts and Sciences, Baoji, China
| | - Ningning Yang
- Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation, Baoji University of Arts and Sciences, Baoji, China
| | - Enhua Dai
- Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation, Baoji University of Arts and Sciences, Baoji, China
| | - Minghang Yang
- Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation, Baoji University of Arts and Sciences, Baoji, China
| | - Zhoufeng Wang
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang’an University, Xi’an, China
- * E-mail: (ZW); (YG)
| | - Yani Geng
- Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation, Baoji University of Arts and Sciences, Baoji, China
- * E-mail: (ZW); (YG)
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21
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Zhuang W, Song J. Thallium in aquatic environments and the factors controlling Tl behavior. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:35472-35487. [PMID: 34021893 DOI: 10.1007/s11356-021-14388-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
Although thallium (Tl) usually exists in a very low level in the natural environment, it is highly toxic. With the development of mining and metallurgical industry and the wide application of Tl in the field of high technologies, Tl poses an increasing threat to the ecological environment and human health. This paper summarizes the research results of the toxicity of Tl as well as the distribution, occurrence forms, migration, and transformation mechanism of Tl in rivers, lakes, mining areas, estuaries, coastal waters, and oceans. It also discusses the influence mechanisms of pH, redox potential, suspended particulate matters, photochemical reaction, natural minerals, cation/anion, organic matters, and microorganisms on the environmental behavior of Tl. This paper points out the shortcomings of Tl research methods in water environment, and looks forward to the future development directions: First, the technology for separating Tl(III) and Tl(I) is still immature, especially it is difficult to effectively separate Tl(III) and Tl(I) in seawater. Second, the development of many advanced in situ detection technologies will bring great convenience to the studies of the dynamic mechanisms of Tl migration and transformation in the environments. Third, adsorption is the most effective mechanism to remove Tl from water, in which modified metal oxides or macrocyclic organic compounds have high application potential.
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Affiliation(s)
- Wen Zhuang
- Institute of Eco-environmental Forensics, Shandong University, Qingdao, 266237, Shandong, China.
- Ministry of Justice Hub for Research and Practice in Eco-Environmental Forensics, Shandong University, Qingdao, 266237, Shandong, China.
| | - Jinming Song
- Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, Shandong, China.
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22
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Potentially toxic elements in macromycetes and plants from areas affected by antimony mining. Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00788-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Dong H, Yoneda M, Feng L. Risk dynamic evolution index based on fraction transformation and its application to site risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125210. [PMID: 33529833 DOI: 10.1016/j.jhazmat.2021.125210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
In this study, a potential ecological risk index for site dynamic risk evolution was proposed with the development trend of the Hakanson approach. The possibility factor Pi was attached to the contamination factor Cfi, representing the burst probability factor of dynamic risk arising from the transformation of metal(loid) fractions, ascertained by the delayed geochemical hazard (DGH) methodology. The toxic effects of different elements were explored through a meta-analysis. The effects of soil pH and soil organic matter on the mobile fraction of elements were examined, and the toxic factors (Tri) of six elements (arsenic, cadmium, chromium, copper, lead, and zinc) were modified for the site application. A total of 16 case studies representing four soil types (agricultural soil, industrial zone, mining area, and soil of river basin) were tested, and the results indicated that the proposed index could provide an early warning of site risk dynamics.
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Affiliation(s)
- Haochen Dong
- Division of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto 6158540, Japan; Department of Environmental Sciences and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Minoru Yoneda
- Division of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto 6158540, Japan
| | - Liu Feng
- Department of Environmental Sciences and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
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24
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Zhi M, Zhang X, Zhang K, Ussher SJ, Lv W, Li J, Gao J, Luo Y, Meng F. The characteristics of atmospheric particles and metal elements during winter in Beijing: Size distribution, source analysis, and environmental risk assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 211:111937. [PMID: 33476848 DOI: 10.1016/j.ecoenv.2021.111937] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 01/04/2021] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
In order to investigate the pollution characteristics of size-segregated particles and metal elements (MEs) after the Chinese Air Pollution Prevention Action Plan was released in 2013, an intensive field campaign was conducted in the suburban area of Chaoyang District, Beijing in winter 2016. The size distributions of particle mass concentrations were bimodal, with the first peak in the fine fraction (0.4-2.1 µm) and the second peak in the coarse fraction (3.3-5.8 µm). Moreover, the proportion of fine particles increased and the proportion of coarse particles decreased as the pollution level was more elevated. It was found that the composition of coarse particles is as important as that of fine particles when pollution of aerosol metals in the atmosphere in 2016 were compared to 2013. In addition, according to the size distribution characteristics, 23 MEs were divided into three groups: (a) Fe, Co, Sr, Al, Ti, Ba, and U, which concentrated in coarse mode; (b) Zn, As, Cd, Tl, and Pb, which concentrated in fine mode; and (c) Na, K, Be, V, Cr, Mn, Ni, Cu, Mo, Ag, and Sn, showing bimodal distribution. Under clean air, slight pollution and moderate pollution conditions, most elements maintained their original size distributions, while under severe pollution, the unimodal distributions of most MEs became bimodal distributions. The factors analysis combined with size distributions indicated that Na, Zn, Mo, Ag, Cd, and Tl, showing the moderate to severe contamination on environment, were significantly influenced by diffuse regional emissions or anthropogenic source emissions (vehicle exhaust emissions and combustion process). The environmental risk assessment revealed that the heavy metal loading in the atmospheric particles collected had a high potential for ecological risk to the environment during sampling period because of the high contribution of Cd, Tl, Zn and Pb.
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Affiliation(s)
- Minkang Zhi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xi Zhang
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan
| | - Kai Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Simon J Ussher
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth PL4 8AA, United Kingdom
| | - Wenli Lv
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Jie Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Jian Gao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yuqian Luo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Fan Meng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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25
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Tong R, Fang Y, Zhang B, Wang Y, Yang X. Monitoring and evaluating the control effect of dust suppressant on heavy metals based on ecological and health risks: a case study of Beijing. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:14750-14763. [PMID: 33219505 DOI: 10.1007/s11356-020-11648-5] [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: 08/14/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
Dust suppressant is widely applied to control the road dust pollution, while the unified statement on its control effect has not been obtained. To fill this gap, an experiment was conducted at four typical sites in Beijing, where dust suppressant and water were sprayed at test and control sites, respectively. Samples were collected to analyze the concentrations of PM2.5, PM10, and heavy metals. With the application of potential ecological risk index and probabilistic health risk assessment, the ecological and health risks of heavy metals were obtained. Results showed that compared with control sites, the total concentrations of heavy metals in PM10 and PM2.5 at test sites decreased by 1555.40 and 784.95 ng/m3 in 14 days, with the suppression rate of 11.95% and 12.06%. Especially, the total ecological risks of heavy metals in PM10 reduced from 165.77 to 143.64, with their ecological hazard level changed from medium to slight. The carcinogenic risks of PM2.5 and PM10 reduced by 0.60E-05 and 1.52E-06, respectively. As for the non-carcinogenic risks, there were a reduction of 5.78% and 12.28% for PM2.5 and PM10, respectively. Notably, the ecological risk of Pb was the highest; Cr and Zn contributed the most to carcinogenic and non-carcinogenic risk. Finally, to mitigate road dust pollution from an integration perspective, some preventive measures were proposed.
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Affiliation(s)
- Ruipeng Tong
- School of Emergency Management and Safety Engineering, China University of Mining and Technology - Beijing, Beijing, 100083, China
| | - Yingqian Fang
- School of Emergency Management and Safety Engineering, China University of Mining and Technology - Beijing, Beijing, 100083, China
| | - Boling Zhang
- School of Emergency Management and Safety Engineering, China University of Mining and Technology - Beijing, Beijing, 100083, China
| | - Yiran Wang
- School of Emergency Management and Safety Engineering, China University of Mining and Technology - Beijing, Beijing, 100083, China
| | - Xiaoyi Yang
- School of Emergency Management and Safety Engineering, China University of Mining and Technology - Beijing, Beijing, 100083, China.
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26
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Dong L, He Z, Zhang F, Xu T, Wu J, Yan K, Pan X, Zhang D. Assessment of uranium migration and pollution sources in river sediments of the Ili River Basin using multiply statistical techniques. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:5372-5382. [PMID: 32964386 DOI: 10.1007/s11356-020-10887-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
Uranium (U) is a highly toxic radioactive element and limited to < 30 μg/L in drinking water by the World Health Organization. In this study, the concentration, distribution, possible source, and correlation with other elements of U were investigated in river sediments of the Ili River Basin. Metal contamination factors (CFs) and geoaccumulation index (Igeo) were calculated, and both of them indicated that U in the survey region was unpolluted, slightly polluted, or moderately polluted (its concentration was ranged from 1.37 to 5.99 mg/kg). Notably, U pollution in the tributaries near the Wusun Mountain was evidently higher than those in the main streams of the Ili River and the Tekes River. Principal component analysis (PCA), cluster analysis (CA), and correlation analysis revealed that U was significantly positively correlated with Pb, and both of them might have originated from the dense coal mines in the areas of the Wusun Mountain. Sediment U in the main streams of the rivers was unpolluted or slightly polluted, which might be strongly influenced by the U contamination in their upstream tributaries. The results from this work showed that the source control of the coal-derived U pollution near the Wusun Mountain was critical to protect the aquatic environment in the Ili River Basin.
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Affiliation(s)
- Lingfeng Dong
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Zhanfei He
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China.
| | - Fan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Tao Xu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Jingyi Wu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Kaifang Yan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Daoyong Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China.
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.
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27
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Njuguna SM, Githaiga KB, Onyango JA, Gituru RW, Yan X. Ecological and health risk assessment of potentially toxic elements in Ewaso Nyiro River surface water, Kenya. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-020-04067-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
AbstractEwaso Nyiro basin covers an area of about 210,226 km2, 36.3%, of Kenya drainage area and bears 5.8% of Kenya water potential with an annual yield of 1469 million m3. The river is the principal source of domestic and irrigation water to the arid north of Kenya. To determine metal and nutrient concentration of Ewaso Nyiro River surface water, a total of 30 water samples, 15 samples each for dry (February) and wet (August) seasons of 2019, were collected. Chromium, lead, iron, manganese, cobalt, cadmium, mercury, selenium, molybdenum, boron, copper, zinc, arsenic, nickel, aluminum, total phosphorus and nitrate were analyzed in the two seasons. Ecological risk assessment was determined by calculating contamination factor, pollution load index and ecological risk index. Multivariate statistical analysis was used to infer pollutants association and identify their potential sources. Cadmium, arsenic, lead, molybdenum, mercury, selenium and nickel were not detected in both seasons, while manganese, iron and aluminum were the main pollutants identified. Ewaso Nyiro irrigation water had a manganese contamination factor of 9.17, implying it was very contaminated. Twenty-seven and 40% of sampled sites in dry and wet seasons, respectively, had more than 0.3 mg/L of iron that is recommended by USEPA in drinking water. Herbicides, leached fertilizer and fuel leaking into the river water were the primary sources of anthropogenic pollution.
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28
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Visconti D, Álvarez-Robles MJ, Fiorentino N, Fagnano M, Clemente R. Use of Brassica juncea and Dactylis glomerata for the phytostabilization of mine soils amended with compost or biochar. CHEMOSPHERE 2020; 260:127661. [PMID: 32688327 DOI: 10.1016/j.chemosphere.2020.127661] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/18/2020] [Accepted: 07/07/2020] [Indexed: 05/04/2023]
Abstract
Phytostabilization of mine soils contaminated by potentially toxic elements (PTEs) requires plants tolerant to PTE toxicity and to the poor soil physico-chemical characteristics of these areas. A pot experiment was carried out to assess the phytostabilization potential of Brassica juncea and Dactylis glomerata in mine soils amended with compost and biochar. Furthermore, the Environmental Risk of the soils and the effects of the phytostabilization process on the microbiological population size and activity in the soils were also determined. According to the Ecological Risk Index (ERI) the soils studied presented "very high risk" and As, Cd and Pb were the target elements for phytostabilization. Both amendments improved soil conditions (e.g., increasing total-N and total organic-C concentrations) and contributed to PTE (Cd, Pb and Zn) immobilization in the soil. Compost showed a more marked effect on soil microbial biomass and nutrients release in soil, which led to higher B. juncea and D. glomerata biomass in compost treated soils. Biochar treatment showed a positive effect only on D. glomerata growth, despite it provoked strong PTE immobilization in both soils. The addition of both amendments resulted in an overall reduction of PTE concentration in the plants compared to the control treatment. In addition, both plant species showed higher accumulation of PTE in the roots than in the shoots (transfer factor<1) independently of the treatment received. Therefore, they can be considered as good candidates for the phytostabilization of PTE contaminated mine soils in combination with organic amendments like biochar and compost.
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Affiliation(s)
- Donato Visconti
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100, 80055, Portici, Italy.
| | | | - Nunzio Fiorentino
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100, 80055, Portici, Italy
| | - Massimo Fagnano
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100, 80055, Portici, Italy
| | - Rafael Clemente
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Murcia, Spain
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29
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Liu J, Zhou Y, She J, Tsang DCW, Lippold H, Wang J, Jiang Y, Wei X, Yuan W, Luo X, Zhai S, Song L. Quantitative isotopic fingerprinting of thallium associated with potentially toxic elements (PTEs) in fluvial sediment cores with multiple anthropogenic sources. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115252. [PMID: 32717591 DOI: 10.1016/j.envpol.2020.115252] [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: 01/28/2020] [Revised: 07/08/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
Thallium (Tl) is a dispersed trace metal showing remarkable toxicity. Various anthropogenic activities may generate Tl contamination in river sediments, posing tremendous risks to aquatic life and human health. This paper aimed to provide insight into the vertical distribution, risk assessment and source tracing of Tl and other potentially toxic elements (PTEs) (lead, cadmium, zinc and copper) in three representative sediment cores from a riverine catchment impacted by multiple anthropogenic activities (such as steel-making and Pb-Zn smelting). The results showed high accumulations of Tl combined with associated PTEs in the depth profiles. Calculations according to three risk assessment methods by enrichment factor (EF), geoaccumulation index (Igeo) and the potential ecological risk index (PERI) all indicated a significant contamination by Tl in all the sediments. Furthermore, lead isotopes were analyzed to fingerprint the contamination sources and to calculate their quantitative contributions to the sediments using the IsoSource software. The results indicated that a steel-making plant was the most important contamination source (∼56%), followed by a Pb-Zn smelter (∼20%). The natural parental bedrock was found to contribute ∼24%. The findings highlight the importance of including multiple anthropogenic sources for quantitative fingerprinting of Tl and related metals by the lead isotopic approach in complicated environmental systems.
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Affiliation(s)
- Juan Liu
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Yuchen Zhou
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China
| | - Jingye She
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Holger Lippold
- Helmholtz-Zentrum Dresden-Rossendorf, Institut für Ressourcenökologie, 04318, Leipzig, Germany
| | - Jin Wang
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, 510006, Guangzhou, China.
| | - Yanjun Jiang
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China
| | - Xudong Wei
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China
| | - Wenhuan Yuan
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China
| | - Xuwen Luo
- Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Innovation Center and Key Laboratory of Waters Quality & Conservation in the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China
| | - Shuijing Zhai
- Key Laboratory of Humid Subtropical Eco-geographical Processes, Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, China.
| | - Lan Song
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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30
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Yang Y, Li J, Zhang F, Sun F, Chen J, Tang M. Impact of heavy metals on Ciconia boyciana feathers and Larus saundersi egg shells in the Yellow River delta estuary. RSC Adv 2020; 10:39396-39405. [PMID: 35515397 PMCID: PMC9057445 DOI: 10.1039/d0ra08070e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/15/2020] [Indexed: 12/07/2022] Open
Abstract
In this study, the Ciconia boyciana and Larus saundersi, typical wetland birds in the Yellow River estuary, were selected as research objects. The feathers and egg shells of Ciconia boyciana and Larus saundersi were collected to determine the contents of heavy metals Cd, Cr, Cu, Zn, Mn, Ni and Pb in the samples. Correlation analysis (CA), principal component analysis (PCA), principal factor analysis (PFA) and potential ecological risk index (RI) were used to analyse and treat the measured heavy metal content data to determine the heavy metal pollution status, source and potential ecological risk in the Yellow River estuary. The results of CA, PCA and PFA showed that the content of Cd in the Yellow River estuary was much higher than the background value and its pollution was the most serious. Cr pollution was second and Mn pollution was the lowest. Heavy metal pollution mainly came from human activities such as oil exploitation, industrial production, use of pesticides and fertilizers, and the pollution caused by natural sources was relatively low. Based on the RI value of heavy metals in the study area, heavy metal Cd had an extremely high ecological risk status, and other heavy metals were all low. The results of this study can provide some reference and theoretical support for bird protection, heavy metal pollution control and ecological restoration in the Yellow River delta. In this study, the Ciconia boyciana and Larus saundersi, typical wetland birds in the Yellow River estuary, were selected as research objects.![]()
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Affiliation(s)
- Yuewei Yang
- School of Life Science, Qufu Normal University Qufu Shandong China
| | - Jing Li
- School of Life Science, Qufu Normal University Qufu Shandong China
| | - Fengjiao Zhang
- School of Life Science, Qufu Normal University Qufu Shandong China
| | - Fengfei Sun
- School of Life Science, Qufu Normal University Qufu Shandong China
| | - Junfeng Chen
- School of Life Science, Qufu Normal University Qufu Shandong China
| | - Meizhen Tang
- School of Life Science, Qufu Normal University Qufu Shandong China
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31
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Health Risk Assessment of Heavy Metals in Soils before Rice Sowing and at Harvesting in Southern Jiangsu Province, China. J CHEM-NY 2020. [DOI: 10.1155/2020/7391934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Rice, one of the most important staple crops in China, is easily contaminated by heavy metal pollution from industrial development. In this work, we systematically investigated the heavy metal (Cr, Cd, Pb, Zn, and Cu) and metalloid (Hg and As) concentrations in paddy soils and different rice tissues in southern Jiangsu Province, China. The potential ecological hazard index method and in vitro simulation test were used to evaluate the influence of heavy metals on local resident health. The results showed that, before rice sowing and at the harvesting period, the order of Eri values was EriCd>EriHg>EriAs>EriPb>EriCu>EriCr>EriZn. The low-risk index values (91.63 and 30.29) for the heavy metals indicated the low risk at the two stages in the study area based on the potential ecological hazard index. As determined with Tessier’s five-stage sequential extraction procedure, the proportions of the chemical speciation of the heavy metals were as follows: residual > organic matter-bound > iron-manganese oxide-bound > carbonate-bound > exchangeable. The order of the values of the accumulation and transfer factors was Cd (3.16) > Cu (0.42) > Zn (0.28) > Pb (0.25) > As (0.07) > Cr (0.04) > Cr (0.03) and root > stem > leaves, respectively. In vitro simulation tests showed that, in both adults and children, the daily amount of Pb and Cd intake through the soil-oral cavity route in the study area did not exceed the daily tolerance for Pb and Cd proposed by the WHO. In summary, although there is no obvious danger to local adults and children, it is necessary to be aware of the possibility of rice contamination from Cd in the soil.
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32
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Ma L, Abuduwaili J, Liu W. Spatial Distribution and Ecological Risks of the Potentially-Toxic Elements in the Surface Sediments of Lake Bosten, China. TOXICS 2020; 8:E77. [PMID: 32972005 PMCID: PMC7560408 DOI: 10.3390/toxics8030077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 11/16/2022]
Abstract
Aiming at the pollution and ecological hazards of the lake sediments of Bosten Lake, once China's largest inland lake, the spatial distribution and influencing factors of the potentially-toxic elements in its surface sediments were studied with the methods of spatial autocorrelation, two-way cluster analysis, and redundancy analysis. Finally, based on the background value of potentially-toxic elements extracted from a sediment core, a comprehensive evaluation of the risk of these potentially-toxic elements was conducted with the potential-ecological-risk index and the pollution-load index. With data on the grain size, bulk-rock composition, and organic matter content, this comprehensive analysis suggested that with the enrichment of authigenic carbonate minerals, the content of potentially-toxic elements exhibited distinctive characteristics representative of arid regions with lower values than those in humid region. All potentially-toxic elements revealed a significant spatial autocorrelation, and high-value areas mainly occurred in the middle and southwest. The content of potentially-toxic elements is related to Al2O3, K2O, Fe2O3, TiO2, MgO, and MnO, and the storage medium of potentially-toxic elements mainly consists of small particles with a grain size <16 μm. The pollution load index (PLI) for the whole lake due to the potentially-toxic elements was 1.31, and the surface area with a PLI higher than 1 and a moderate pollution level accounted for 87.2% of the total lake area. The research conclusions have an important scientific value for future lake ecological quality assessment and lake environment governance.
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Affiliation(s)
- Long Ma
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (J.A.); (W.L.)
- Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jilili Abuduwaili
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (J.A.); (W.L.)
- Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen Liu
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (J.A.); (W.L.)
- Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Kükrer S, Erginal AE, Kılıç Ş, Bay Ö, Akarsu T, Öztura E. Ecological risk assessment of surface sediments of Çardak Lagoon along a human disturbance gradient. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:359. [PMID: 32399640 DOI: 10.1007/s10661-020-08336-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
Lagoons are the hotspot ecosystems whose sustainability should be secured using the ecological assessment indicators. This study aimed to quantify the surface sediment metal distributions of Çardak Lagoon in the Marmara region of Turkey, to characterize their natural and anthropogenic sources and transport mechanisms and to assess their potential ecological risks. The surface sediment samples were collected from 11 stations using Van Veen grab, while for the background values to be determined, core sampling was used from two stations. The analyses of multiple elements, total organic carbon, carbonate, and chlorophyll degradation by-products were carried out to characterize sediments. Enrichment factor and the indices of potential ecological and toxic risks were applied to assess the ecological status of the surface sediments. The operation of the gold mine in the close vicinity was found to be responsible for the enrichment of Au and Hg in the lagoon sediments. Cd, Tl, Sb, and Sr were the other elements responsible for the enrichment. The potential risk levels of the lagoon varied between the low and significant levels. The riskiest elements were found to be Hg and Cd which in turn pointed to the mining and agricultural activities as the most dominant human disturbance. The toxic risk index of Çardak Lagoon was estimated to range from 5.21 to 11.00, with a low mean value of 7.98. The C:N ratio range of 8.52 to 134.93 (a mean of 29.07) indicated that the organic C source was mostly of the terrestrial origin, in particular, from the surrounding agricultural lands.
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Affiliation(s)
- Serkan Kükrer
- Department of Geography, Faculty of Humanities and Letters, Ardahan University, 75002, Ardahan, Turkey.
| | - Ahmet Evren Erginal
- Department of Turkish and Social Science Education, Faculty of Education, Çanakkale Onsekiz Mart University, 17100, Çanakkale, Turkey
| | - Şeref Kılıç
- Department of Environmental Engineering, Faculty of Engineering, Ardahan University, 75002, Ardahan, Turkey
| | - Özender Bay
- Department of Turkish and Social Science Education, Faculty of Education, Çanakkale Onsekiz Mart University, 17100, Çanakkale, Turkey
| | - Taylan Akarsu
- Department of Turkish and Social Science Education, Faculty of Education, Çanakkale Onsekiz Mart University, 17100, Çanakkale, Turkey
| | - Erdal Öztura
- Department of Turkish and Social Science Education, Faculty of Education, Çanakkale Onsekiz Mart University, 17100, Çanakkale, Turkey
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Geochemical Fractions of the Agricultural Soils of Southern Poland and the Assessment of the Potentially Harmful Element Mobility. MINERALS 2019. [DOI: 10.3390/min9110674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Surface samples (0–25 cm each) of agricultural soils were investigated in five Regions (voivodeships) of southern Poland. The mean Potentially Harmful Element (PHE) pseudototal content ranges were as follows (mg/kg): As 5.19–10.9, Cd 0.34–1.56, Co 1.92–6.70, Cr 9.05–25.7, Cu 8.74–69.4, Hg 0.001–0.08, Ni 3.93–19.9, Pb 20.3–183, Sb 0.80–1.42, Tl 0.04–0.17, and Zn 61.3–422. The PHE availability depended on pH, the organic carbon (Corg) content, and the pseudototal PHE content in soils. Exchangeable and acid soluble PHE contents (BCRF1) determined in the Community Bureau of Reference (BCR) three-step sequential extraction procedure decreased in this order: Cd > Zn > Co > Ni = Sb > Cu > Tl > As > Cr = Pb. Actually available PHE contents in pore water (0.01 mol/dm3 CaCl2) ranged as follows: Cd 0.81–17%, Cr 0–0.25%, Cu 0.01–2.31%, Ni 0.16–2%, Pb 0.2–0.49%, and Zn 0.25–2.12%. The potential soluble total content of PHEs in pore water (0.05 mol/dm3 Na2EDTA) ranged as follows: Cd 27–91%, Cr 0.7–7.1%, Cu 6.7–98%, Ni 3.6–41%, Pb 15–41%, and Zn 3–34%. The mobility factor (MF) values indicated Cd (31.6%) and Zn (21.0%) as the most mobile elements in soil. Other PHEs followed the order of Co > Ni > Tl > As > Sb > Cu > Cr > Pb, with the MF values <10%. The risk assessment code (RAC) values revealed a very high ecological risk of Cd and Zn in the Podkarpackie Region and a high ecological risk of Cd in the Regions of Opolskie, Śląskie, Małopolskie, and Podkarpackie, and the same of Zn in the Opolskie and Śląskie. The modified risk assessment code (mRAC) index pointed a very high potential of adverse effects in soils in the Podkarpackie and a medium potential in the Opolskie, Śląskie, Małopolskie, and Świętokrzyskie. The potential adverse effect risk, described by the individual contamination factor (ICF) factor, was the following in the Regions, in the decreasing order: Cd > Pb > Sb > Zn > Co > Cu > Ni > Tl > As > Cr, and the same as described by the global contamination factor (GCF) values: Opolskie > Podkarpackie > Świętokrzyskie > Śląskie > Małopolskie.
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Visconti D, Fiorentino N, Caporale AG, Stinca A, Adamo P, Motti R, Fagnano M. Analysis of native vegetation for detailed characterization of a soil contaminated by tannery waste. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:1599-1608. [PMID: 31279978 DOI: 10.1016/j.envpol.2019.06.125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 05/25/2023]
Abstract
The risks for human health and the ecosystem due to potentially toxic elements (PTEs) were investigated in a farmland classified as potentially contaminated by Cr and Zn by analysing native vegetation and relative rhizo-soils. Rhizo-soils of different plant species were found to be enriched by Cr and Zn as well as by elements omitted from official environmental characterization, namely Cd, As and Pb. The ecological risk index (ERI) had a mean value of 510, indicating high to "very high" risk in different habitats. ERI above the very high risk threshold characterized the rhizo-soils of Lolium perenne, Erigeron sumatrensis, Oloptum thomasii and Amaranthus retroflexus. Two of these plant species (E. sumatrensis and A. retroflexus) are exotic in Italy and accumulated Cd in the shoots above the EU threshold for forage, suggesting a potential risk of Cd transfer to the food chain. Hence, this element was found to contribute most to the ERI. Cynodon dactylon was recognized as the most suitable plant species for the phytostabilization of the contaminated site, as it showed the highest bioavailable Cd accumulation in roots coupled with the highest frequency and soil-cover capacity during spring-summer, when the risk of soil resuspension is generally more intense.
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Affiliation(s)
- Donato Visconti
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Naples, Italy.
| | - Nunzio Fiorentino
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Naples, Italy
| | - Antonio G Caporale
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Naples, Italy
| | - Adriano Stinca
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, via Vivaldi 43, 81100 Caserta, Italy
| | - Paola Adamo
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Naples, Italy
| | - Riccardo Motti
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Naples, Italy
| | - Massimo Fagnano
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Naples, Italy
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Chen M, Wu P, Li S, Yang S, Lin Z, Dang Z. The effects of interaction between vermiculite and manganese dioxide on the environmental geochemical process of thallium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 669:903-910. [PMID: 30970457 DOI: 10.1016/j.scitotenv.2019.03.079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/06/2019] [Accepted: 03/06/2019] [Indexed: 05/26/2023]
Abstract
The interaction among various soil minerals can significantly impact on the environmental geochemical process of contaminants. Therefore, this study investigated the effects of interaction between vermiculite (VER) and manganese dioxide (MnO2) on the migration and transformation of Tl(I). The VER exhibited typical layered structure and MnO2 possessed a flower-like structure with serious reunion phenomenon, while the production of interaction between vermiculite and manganese dioxide, labeled VER-MnO2, illustrated as fish scales evenly spread over a large sheet, suggesting that MnO2 could triumphantly be anchored on the VER and the aggregation of MnO2 was prevented. Compared with the pure MnO2, VER acted as template substrate contributed the higher specific surface area (298.18 m2·g-1) and the oxidation degree of Mn. VER-MnO2 showed the highest fixation capacity (144.29 mg·g-1) than other two materials in the order VER-MnO2 > MnO2 > VER, and there was no risk derived from Mn dissolution. The influence mechanism of VER-MnO2 on Tl(I) migration and transformation lied in immobilization, ion exchange and oxidization. Fixed-bed column immobilization experiments showed that VER-MnO2 could purify drinking water contaminated by Tl (20 μg·L-1) and the effective breakthrough volumes were 900 bed volumes until reaching the maximum limits allowed in drinking water (0.1 μg·L-1). VER-MnO2 excellently catches Tl to prevent groundwater pollution. This study provides a theoretical guidance for environmental fate and restoration of soil heavy metal pollution.
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Affiliation(s)
- Meiqing Chen
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China
| | - Pingxiao Wu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China; Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou 510006, PR China.
| | - Shuaishuai Li
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China
| | - Shanshan Yang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China
| | - Zhang Lin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou 510006, PR China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China
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Jiang F, Ren B, Hursthouse A, Deng R, Wang Z. Distribution, source identification, and ecological-health risks of potentially toxic elements (PTEs) in soil of thallium mine area (southwestern Guizhou, China). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:16556-16567. [PMID: 30982190 DOI: 10.1007/s11356-019-04997-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
The exploitation of thallium (Tl) resources through mining poses a significant threat to ecological systems and human health due to its high toxicity and ready assimilation by human body. We report the first assessment of the pollution, spatial distribution, source, and ecological-health risks of potentially toxic elements (PTEs) in Tl mining area of southwest Guizhou, China. Spatial distribution maps for PTEs were visualized by ArcGIS to identify their distribution trends. We use the enrichment factor (EF), correlation analysis, and principal component analysis to identify likely sources of seven PTEs mining area. The wider risk assessment was evaluated using the geoaccumulation index (Igeo), potential ecological risk index (RI), human non-carcinogenic risk (HI), and carcinogenic risk (CR). The results revealed the PTEs content in the study area identifies direct mining, metal production, and domestic pollution sources. In addition, the distribution of PTEs was also affected by the topography, rain water leaching, and river dispersals. The main elements of concern are Tl and As, while Cd, Cr, Cu, Pb, and Zn do not show significant enrichment in the area despite associations with the ore deposit. Risk assessment identifies strong pollution and ecological risks and poses unacceptable human health risks to local residents, especially for children. The ecological risk in the study is identified to be predominantly from Tl (74.32%), followed by As (8.57%) and Cd (7.32%). The contribution of PTEs to the non-carcinogenic risk of humans in the study area is exclusively from As and Tl, while the carcinogenic risk is dominated by As, and the other elements pose no significant risk to human health.
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Affiliation(s)
- Feng Jiang
- Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan, 411201, China
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Bozhi Ren
- Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan, 411201, China.
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Andrew Hursthouse
- Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan, 411201, China
- Computing Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - Renjian Deng
- Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan, 411201, China
- School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Zhenghua Wang
- Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan, 411201, China
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Li H, Yang J, Ye B, Jiang D. Pollution characteristics and ecological risk assessment of 11 unheeded metals in sediments of the Chinese Xiangjiang River. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2019; 41:1459-1472. [PMID: 30542780 DOI: 10.1007/s10653-018-0230-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 12/04/2018] [Indexed: 05/07/2023]
Abstract
With the change in global climate and environment, water scarcity has been of great concern around the word and exacerbated by serious pollution in water resources. Pollutants accumulated in sediments are threatening water safety and ecological security. Different from others focusing on prevalent heavy metals (Cu, Pb, Zn, As, Cd, Cr, Hg, etc.), in this study, some unheeded metal pollutants Tl, Sb, Mo, Sr, Co, V, Ti, Ca, Mg, Be and Li were monitored in sediments of the Xiangjiang River, China. It was found that there was no remarkable vertical variation with depth, but the seasonal characteristics of Tl, Sb, Mo, Be and Li. The enrichment, pollution and potential ecological risk of Tl, Sb and Mo were revealed by the enrichment factor (EF), geoaccumulation index (Igeo), pollution load index (PLIsite and PLIzone) and potential ecological risk index (RI). It is noticed that the pollution of Tl mainly occurred in summer at midstream and downstream and Mo pollution was much higher than Sb in summer and the reverse in other seasons. Additionally, sediment quality on east side was worse than on west side in Songbai section of the Xiangjiang River. For the first time, the toxic-response factor was figured out as Mo = 18, Tl = 17, Sb = 13, Sr = 6, Co = Be = 1, V = Li = 0, and importantly, the high potential ecological risk of Tl, Sb and Mo needs to be taken seriously for the comprehensive assessment on watershed environmental quality.
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Affiliation(s)
- Huan Li
- Changsha Environmental Protection College, Changsha, 410004, China
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Jinqin Yang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Bin Ye
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Dongyi Jiang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
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Huang X, Luo D, Zhao D, Li N, Xiao T, Liu J, Wei L, Liu Y, Liu L, Liu G. Distribution, Source and Risk Assessment of Heavy Metal(oid)s in Water, Sediments, and Corbicula Fluminea of Xijiang River, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16101823. [PMID: 31126009 PMCID: PMC6572011 DOI: 10.3390/ijerph16101823] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 05/19/2019] [Accepted: 05/20/2019] [Indexed: 01/07/2023]
Abstract
A total of 43 water and sediment samples, and 34 Corbicula fluminea samples were collected in Xijiang River in southern China to determine the spatial distribution and sources of 12 metals/metalloids (V, Co, Cr, Ni, Cu, Mn, Zn, Cd, Pb, As, Sb, and Tl) and to assess the pollution levels and ecological risks of the pollutants. The results showed that the levels of the metals/metalloids (except for Tl) in the river water from almost all of the sampling sites met the Chinese national surface water quality standards. However, the concentrations of the metals/metalloids in the sediments exceeded the background values by a factor of 1.03–56.56 except for V, Co, and Mn, and the contents of Zn, Cd, and Pb in the Corbicula fluminea soft tissue exceeded the limits of the Chinese Category I food Quality Standards. The spatial distribution analysis showed that the concentrations of the contaminants in the lower reaches of Xijiang River were higher than in the upper reaches. The bioaccumulation factor (BAF), biota-sediment accumulation factor (BSF), geo-accumulation index (Igeo), and the potential ecological risk index (RI) were obtained to assess the pollution levels and ecological risks. The results indicated that Cu, Cd, and Zn were the most prone to bio-accumulation in the Corbicula fluminea soft tissue, and the lower reaches showed a much higher pollution level and risk than the upper reaches. The metals/metalloids in the sediments posed serious threat on the aquatic ecosystem, of which Cd, As, and Sb are the most risky contaminants. The results of principal component analysis (PCA) indicated Cr, Ni, Cu, Mn, Cd, Pb, and As in the sediments came from relevant industrial activities, and V and Co originated from natural sources, and Sb from mining activities, Zn and Tl came from industrial activities and mining activities.
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Affiliation(s)
- Xuexia Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
- Linköping University-Guangzhou University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou 510006, China.
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, China.
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
| | - Dinggui Luo
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
- Linköping University-Guangzhou University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou 510006, China.
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, China.
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
| | - Dongye Zhao
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA.
| | - Ning Li
- Guangxi Zhuang Autonomous Region Environmental Monitoring Station, Nanning 530028, China.
| | - Tangfu Xiao
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Jingyong Liu
- Ecological Environment Information System and Big Data Research Team, Guangdong University of Technology, Guangzhou 510006, China.
| | - Lezhang Wei
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
- Linköping University-Guangzhou University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou 510006, China.
| | - Yu Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
- Linköping University-Guangzhou University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou 510006, China.
| | - Lirong Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Guowei Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
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Liu J, Yin M, Luo X, Xiao T, Wu Z, Li N, Wang J, Zhang W, Lippold H, Belshaw NS, Feng Y, Chen Y. The mobility of thallium in sediments and source apportionment by lead isotopes. CHEMOSPHERE 2019; 219:864-874. [PMID: 30572236 DOI: 10.1016/j.chemosphere.2018.12.041] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/29/2018] [Accepted: 12/05/2018] [Indexed: 06/09/2023]
Abstract
Thallium (Tl) is a very toxic heavy metal. As a part of ongoing investigations, the mobility, sources and fate of Tl were investigated for sediments from a watershed in the northern part of the Pearl River, South China, whose catchment has been seriously impacted by large-scale PbZn smelting activities onshore. A wide dispersion of severe Tl contamination was observed throughout the depth profiles. A modified IRMM (Institute for Reference Materials and Measurements, Europe) sequential extraction procedure of a selected depth profile uncovered an exceptionally high enrichment of Tl in geochemically-mobile fractions (i.e., weak-acid-exchangeable, reducible and oxidizable fractions), on average 5.94 ± 2.19 mg/kg (74.6% ± 5.1% of the total Tl content) not only in the surface sediments but also in deep sediments. The proximal quantitative source apportionment using Pb isotopic fingerprinting technique indicated that a majority (80%-90%) of Tl contamination along the depth profiles is anthropogenically derived from the PbZn smelting wastes. The results highlight the pivotal role of smelting activities in discharging huge amounts of geochemically-mobile Tl to the sediments down to approximately 1 m in length, which is quantitatively evidenced by Pb isotopic tracing technique. Lead isotopes combined with distribution of Tl and Pb contents identified a potential marker for a point source from the PbZn smelter in the river catchment, which also provides a theoretical framework for source apportionment of metal contamination in a larger river/marine system and in other sulfide mining/smelting areas likewise.
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Affiliation(s)
- Juan Liu
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; Department of Earth Sciences, Oxford University, Oxford, OX1 3AN, UK
| | - Meiling Yin
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xuwen Luo
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Tangfu Xiao
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhifeng Wu
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Nuo Li
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jin Wang
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; Department of Earth Sciences, Oxford University, Oxford, OX1 3AN, UK.
| | - Weilong Zhang
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Holger Lippold
- Helmholtz-Zentrum Dresden-Rossendorf, Institut for Ressourcenökologie, 04318 Leipzig, Germany
| | | | - Yuexing Feng
- School of Earth and Environmental Sciences, The University of Queensland, QLD 4072, Australia
| | - Yongheng Chen
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
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Rasool A, Xiao T. Distribution and potential ecological risk assessment of trace elements in the stream water and sediments from Lanmuchang area, southwest Guizhou, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:3706-3722. [PMID: 30535740 DOI: 10.1007/s11356-018-3827-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 11/22/2018] [Indexed: 05/26/2023]
Abstract
Trace elements contamination in sediment is regarded as the global crisis with a large share in developing countries like China. Water and sediment samples were collected during (2016) from Qingshui Stream and analyzed for major physicochemical properties and trace elements by using ICP-MS. Our result of sediments showed that studied trace elements (except Pb, Cd, Co) had a concentration higher than Chinese sediment guideline as well as stream water data for studied trace elements (except Cr, Pb, Cd, Cu, and Zn) had a higher concentration than the maximum permissible safe limit of WHO. Contamination factor (CF) confirmed a moderate to high contamination in the sediment samples due to As and Tl, respectively. The values of pollution load index (PLI) were found above one (> 1), describing the progressive sediment quality decline. Pearson correlation showed that there was a significant positive association between Tl and As (r = 0.725, p < 0.05) in sediment samples. Results revealed that water-rock interaction, weathering of Tl sulfide mineralization, and hydrogeological conditions were major sources of stream water and sediments contamination in the study area. This experimental study contributes to a better understanding of the geochemistry and prevention of trace element contamination in sediments from Lanmuchang area.
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Affiliation(s)
- Atta Rasool
- 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
| | - Tangfu Xiao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
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Abstract
A study of the water quality of the Adolfo López Mateos Reservoir (ALMD) was developed through different indicators from a spatial and seasonal perspective. Variables related to the general characteristics of water quality, trophic level, and ecological risk were assessed through the National Sanitation Foundation–Brown Water Quality Index (WQINSF–BROWN), the Carlson Trophic State Index (TSICARLSON) and the Håkanson Ecological Risk Index (RIHÅKANSON). Using data from physical, chemical, and biological parameters obtained from four sampling points in the ALMD, the water quality was assessed in each model used. The results indicated that the reservoir presents a water quality classified as “medium” (WQINSF–BROWN = 70), where significant variations in the concentrations of some parameters are observed. The reservoir showed a general trophic state (TSIGENERAL-AVERAGE = 43.04) classified as “mesotrophic”. The ecological risk analysis achieved the best classification of the methodology, discarding contamination by heavy metals in surface waters. This type of applied methodology will help in decision-making tools in the dam, and can be applied in other dams in the region.
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Zhuang W, Liu Y, Tang L, Yue W, Liu J, Ren Y, Wang X, Xu S, Tai S, Zhang J, Zheng Y, Guo F, Wang Q, Song J, Duan L, Chen Q. Thallium concentrations, sources and ecological risk in the surface sediments of the Yangtze Estuary and its adjacent east China marginal sea: A baseline study. MARINE POLLUTION BULLETIN 2019; 138:206-212. [PMID: 30660264 DOI: 10.1016/j.marpolbul.2018.11.049] [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: 10/12/2018] [Revised: 11/12/2018] [Accepted: 11/20/2018] [Indexed: 06/09/2023]
Abstract
The distribution characteristics, sources and ecological risk of thallium (Tl) in the surface sediments of Yangtze Estuary and its adjacent sea were studied. Tl concentrations ranged from 0.369 to 1.197 μg g-1 with an average of 0.674 μg g-1, which was slightly higher than the corresponding background values. Tl concentrations were relatively high in sediments of the south bank of Chongming Island and the Hangzhou Bay mouth, and gradually decreased from inner shelf to outer seas. The variation trend of Tl concentrations was controlled by sediment characteristics, hydrodynamic conditions and sources together. The sediment flux of Tl in the study area was 428.6 t/yr. The Yangtze River, the Yellow River and atmospheric inputs of Tl accounted for 52.7%, 10.5%, and 0.15% of the total sediment flux, respectively. The result of potential ecological index indicated that Tl in surface sediments of the study area had no threat to the ecological environment.
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Affiliation(s)
- Wen Zhuang
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China; Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China.
| | - Yongxia Liu
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Lebin Tang
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Wen Yue
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Jinhu Liu
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Yuxuan Ren
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Xiping Wang
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Shanshan Xu
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Shaohua Tai
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Jing Zhang
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Yu Zheng
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Feng Guo
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Qian Wang
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Jinming Song
- Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China.
| | - Liqin Duan
- Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China
| | - Qing Chen
- College of Life Sciences, Zaozhuang University, Zaozhuang, Shandong 277160, China
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Zhuang W, Lai X, Wang Q, Liu Y, Chen Q, Liu C. Distribution characteristics, sources and ecological risk of antimony in the surface sediments of Changjiang Estuary and the adjacent sea, East China. MARINE POLLUTION BULLETIN 2018; 137:474-480. [PMID: 30503458 DOI: 10.1016/j.marpolbul.2018.10.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/19/2018] [Accepted: 10/24/2018] [Indexed: 06/09/2023]
Abstract
The distribution characteristics, sources and ecological risk of antimony (Sb) in the surface sediments of Changjiang Estuary and the adjacent sea were studied. Sb concentrations ranged from 0.320 to 0.968 μg g-1 with mean value of 0.577 μg g-1. Sb concentrations were relatively high in sediments of the south Yellow Sea, the Hangzhou Bay mouth and the inner Changjiang Estuary. The variation trend of Sb concentrations was controlled by hydrodynamics, Al/Fe/Mn oxides. Sb also showed strong chalcophile property. Correlation analysis and enrichment factor showed Sb came mainly from natural sources. Total Sb sediment flux in the study area was 446.3 t/yr. The Changjiang River, the Yellow River and atmospheric inputs accounted for 85.7%, 13.9%, and 0.4% of the total sediment Sb flux, respectively. The result of potential ecological index indicated the very low Sb concentrations could hardly threat the ecological environment of the study area.
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Affiliation(s)
- Wen Zhuang
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China; Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China.
| | - Xiaoying Lai
- School of management, Wuhan Institute of Technology, Wuhai, Hubei 430073, China.
| | - Qian Wang
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Yongxia Liu
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Qing Chen
- College of Life Sciences, Zaozhuang University, Zaozhuang, Shandong 277160, China
| | - Chang Liu
- National Engineering and Technology Research Center for Development & Utilization of Phosphorous Resources, Wuhan Institute of Technology, Wuhai, Hubei 430073, China
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Anthropogenic Impact and Ecological Risk Assessment of Thallium and Cobalt in Poyang Lake Using the Geochemical Baseline. WATER 2018. [DOI: 10.3390/w10111703] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
As the largest freshwater lake in China, water environmental pollution in Poyang Lake is increasingly attracting attention. However, to date, the occurrence of seldom-monitored trace elements (SMTEs) (such as thallium (Tl) and cobalt (Co)) and their potential ecological influences in the Poyang Lake area remain unclear. Here, geochemical baseline concentrations (GBCs) were employed to investigate anthropogenic inputs of these two metals (Tl and Co) and were used to assess the potential ecological risk in surface sediments of Poyang Lake. The results showed that the mean concentrations of Tl and Co were 1.11 mg/kg and 15.42 mg/kg, respectively, slightly higher than background values (BVs) in local soil. Spatially, the Co concentrations in surface sediments of Poyang Lake varied; Co concentrations in the west of the study area were significantly lower than in the middle of the lake. In contrast, no significant spatial variation of Tl was found in studied areas of Poyang Lake. Average GBCs were similar to the mean measured concentrations of Tl and Co in the lake, and both were higher than the BVs in local soil. In anthropogenic source analysis based on the GBCs, 47.22% samples and 41.67% samples were influenced by human activity for Tl and Co, respectively; the mean anthropogenic contribution rate was 5.90% for Tl (0.43 to 16.22%), and 13.01% for Co (0.82 to 31.59%). These results indicated that Tl and Co mainly originate from natural processes. However, the anthropogenic contribution should not be ignored. Moreover, the geo-accumulation index (Igeo) and potential ecological parameter (Er) generally indicated no contamination and a low potential risk for Tl and Co in Poyang Lake sediments, which used the GBCs as BVs. The results of this study suggest that GBCs are more scientifically robust and practical as a reference than BVs. They can also be used when BVs are lacking.
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