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Liu Q, Liu J, Zhang Y, Chen H, Liu X, Liu M. Associations between atmospheric PM 2.5 exposure and carcinogenic health risks: Surveillance data from the year of lowest recorded levels in Beijing, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 355:124176. [PMID: 38768675 DOI: 10.1016/j.envpol.2024.124176] [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: 01/29/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Scant research has pinpointed the year of minimum PM2.5 concentration through extensive, uninterrupted monitoring, nor has it thoroughly assessed carcinogenic risks associated with analyzing numerous components during this nadir in Beijing. This study endeavored to delineate the atmospheric PM2.5 pollution in Beijing from 2015 to 2022 and to undertake comprehensive evaluation of carcinogenic risks associated with the composition of atmospheric PM2.5 during the year exhibiting the lowest concentration. PM2.5 concentrations were monitored gradually in 9 districts of Beijing for 7 consecutive days per month from 2015 to 2022, and 32 kinds of PM2.5 components collected in the lowest PM2.5 concentration year were analyzed. This comprehensive dataset served as the basis for carcinogenic risk assessment using Monte Carlo simulation. And we applied the Positive Matrix Factorization (PMF) method to identity the sources of atmospheric PM2.5. Furthermore, we integrated this source appointment model with risk assessment model to discern the origins of these risks. The findings revealed that the annual average PM2.5 concentration in 2022 stood at 43.1 μg/m3, marking the lowest level recorded. The mean carcinogenic risks of atmospheric PM2.5 exposure calculated at 6.30E-6 (empirical 95% CI 1.09E-6 to 2.25E-5) in 2022. The PMF model suggested that secondary sources (35.4%), coal combustion (25.6%), resuspended dust (15.1%), biomass combustion (14.1%), vehicle emissions (7.1%), industrial emissions (2.0%) and others (0.7%) were the main sources of atmospheric PM2.5 in Beijing. The mixed model revealed that coal combustion (2.41E-6), vehicle emissions (1.90E-6) and industrial emissions (1.32E-6) were the main sources of carcinogenic risks with caution. Despite a continual decrease in atmospheric PM2.5 concentration in recent years, the lowest concentration levels still pose non-negligible carcinogenic risks. Notably, the carcinogenic risks associated with metals and metalloids exceeded that of PAHs. And the distribution of risk sources did not align proportionally with the distribution of PM2.5 mass concentration.
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Affiliation(s)
- Qichen Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China; Institute for Environmental Health, Beijing Center for Disease Prevention and Control, Beijing, China
| | - Jue Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Yong Zhang
- Institute for Environmental Health, Beijing Center for Disease Prevention and Control, Beijing, China
| | - Huajie Chen
- Institute for Environmental Health, Beijing Center for Disease Prevention and Control, Beijing, China
| | - Xiaofeng Liu
- Institute for Environmental Health, Beijing Center for Disease Prevention and Control, Beijing, China
| | - Min Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
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Tao L, Zhou YZ, Shen X. Seasonal variation in urinary PAH metabolite levels and associations with neonatal birth outcomes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:41893-41904. [PMID: 38850391 DOI: 10.1007/s11356-024-33888-5] [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: 01/11/2024] [Accepted: 05/30/2024] [Indexed: 06/10/2024]
Abstract
Previous studies have demonstrated that exposure to polycyclic aromatic hydrocarbons (PAHs) can affect maternal and infant health. However, the conclusions regarding the effects of seasonal PAH exposure on maternal and infant health have been inconsistent. To further elucidate this issue, this study included data from 2282 mother-infant pairs in the Zuni birth cohort. The objective was to investigate the association between maternal late-pregnancy urinary PAH metabolite concentrations and neonatal birth outcomes during the heating and non-heating seasons. The results demonstrated that PAH exposure in Zunyi was primarily dominated by 2-OHNAP and 1-OHNAP and that the concentrations of PAH metabolites were significantly higher during the heating season. Furthermore, PAH metabolite exposure was found to affect neonatal birth weight, birth length, and parity index with seasonal differences. Further dose-effect analyses revealed nonlinear relationships and seasonal differences between PAH metabolites and neonatal birth weight, birth length, and parity index. Bayesian kernel mechanism regression modeling demonstrated that the inverted U-shaped relationship between PAH metabolites and neonatal birth weight and parity index was exclusive to the heating season. Consequently, it can be posited that maternal exposure to PAH metabolites during late pregnancy exerts a detrimental influence on neonatal growth and development, which is further compounded by the use of heating fuels. This highlights the necessity to either control or alter the use of heating fuels during pregnancy.
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Affiliation(s)
- Lin Tao
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou Province, China
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi, 563000, Guizhou Province, China
| | - Yuan-Zhong Zhou
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou Province, China
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi, 563000, Guizhou Province, China
| | - Xubo Shen
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou Province, China.
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi, 563000, Guizhou Province, China.
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Wang Y, Song J, He J, Zhang X, Lv Z, Dong F, Deng J. hsa_circ_0008500 regulates Benzo(a)pyrene-loaded gypsum-induced inflammation and apoptosis in human bronchial epithelial cells via activation of Ahr/C-myc pathways. Toxicol Lett 2024; 394:46-56. [PMID: 38408587 DOI: 10.1016/j.toxlet.2024.02.003] [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: 10/11/2023] [Revised: 01/20/2024] [Accepted: 02/18/2024] [Indexed: 02/28/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are major organic pollutants attached to fine particulate matter in the atmosphere. They induce lung inflammation, asthma, and other lung diseases. Exploring the toxic mechanism of PAHs on lung epithelial cells may provide a theoretical basis for the prevention and treatment of respiratory diseases induced by PAHs. In our study, 16 human bronchial epithelial (16HBE) cells were exposed to different concentrations of gypsum dust, Benzo(a)pyrene (BaP), and BaP-loaded gypsum dust for 24 hours. Gypsum dust loaded with BaP significantly increased the cytotoxicity of 16HBE cells, enhanced the production of lactate dehydrogenase (LDH), interleukin-6 (IL-6) and interleukin-8 (IL-8), induced cell apoptosis, and upregulate the expression of hsa_circ_0008500 (circ_0008500). The mechanism was studied with a BaP-loaded gypsum dust concentration of 1.25 mg/mL. StemRegenin 1 (SR1) pretreat significantly reduced the release of LDH, IL-6, and IL-8 and decreased the protein levels of Ahr、XAP2, C-myc, and p53. Second-generation sequencing indicated that circ_0008500 was highly expressed after 16HBE induced by BaP-loaded gypsum dust. Functional experiments confirmed that circ_0008500 promoted the inflammation and apoptosis of 16HBE cells induced by BaP-loaded gypsum dust by regulating the Ahr signaling pathway. Our study showed that fine particulate matter adsorption of BaP significantly increased the toxic effect of BaP on cells. By activating the Ahr/C-myc pathway, circ_0008500 promoted inflammation and apoptosis of 16HBE cells induced by BaP-loaded gypsum dust.
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Affiliation(s)
- Yujun Wang
- Department of Laboratory Medicine, North Sichuan Medical University, Nanchong 637000, China.
| | - Juan Song
- Department of Laboratory Medicine, Sichuan Santai People's Hospital, Mianyang 621100, China
| | - Jiarui He
- School of Laboratory Medicine, Chengdu Medical College, Chengdu 610500, China
| | - Xu Zhang
- Department of Clinical Laboratory, Sichuan Mianyang404 Hospital, Mianyang 621010, China
| | - Zhenzhen Lv
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China
| | - Faqin Dong
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jianjun Deng
- Department of Laboratory Medicine, North Sichuan Medical University, Nanchong 637000, China; Department of Clinical Laboratory, Sichuan Mianyang404 Hospital, Mianyang 621010, China.
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Ma G, Liu X, Wang J, Li M, Dong Z, Li X, Wang L, Han Y, Cao J. Characteristics and health risk assessment of indoor and outdoor PM 2.5 in a rural village, in Northeast of China: impact of coal and biomass burning. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:9639-9652. [PMID: 37787830 DOI: 10.1007/s10653-023-01755-w] [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: 06/20/2023] [Accepted: 09/05/2023] [Indexed: 10/04/2023]
Abstract
Fine particulate matter (PM2.5) has health effects that may depend on its sources and chemical composition. In this study, characteristics of PM2.5 chemical composition and health risk assessment from Songyuan, China, were investigated during day and night in indoor and outdoor from February 4 to 19, 2021. Relative high concentrations of PM2.5 were obtained in indoor environment than outdoor, with 503.95 ± 209.62 μg/m3 during the day and 357.52 ± 232.81 μg/m3 at night for the indoor environment. Relatively high total carbon, organic carbons, elemental carbons, polycyclic aromatic hydrocarbons (PAHs), and oxygenated polycyclic aromatic hydrocarbons (OPAHs) were obtained in indoor environment. However, the average concentrations of PAHs were higher during night (73.57 ± 43.09 ng/m3) in indoor and OPAHs during day (6.027 ± 2.960 ng/m3) in outdoor. They had different I/O distributions of these compounds during day and night. Indeno(1,2,3-cd) pyrene was the dominant PAHs, and benzanthrone was the dominant OPAHs; this is different with the previous studies. The high indoor/outdoor ratios showed the indoor coal and biomass burning greatly affect the indoor pollutants. Average ILCR health risk assessment for PAHs was all higher than 10-6 for different age gender, suggesting there has potential cancer risk existed for populations living in the rural coal and biomass burning area Songyuan, China.
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Affiliation(s)
- Ge Ma
- National Demonstration Center for Experimental Geography Education, School of Geography and Tourism, Shaanxi Normal University, No. 620 West Chang'an Road, Chang'an Zone, Xi'an, 710119, China
| | - Xiuqun Liu
- National Demonstration Center for Experimental Geography Education, School of Geography and Tourism, Shaanxi Normal University, No. 620 West Chang'an Road, Chang'an Zone, Xi'an, 710119, China
| | - Jingzhi Wang
- National Demonstration Center for Experimental Geography Education, School of Geography and Tourism, Shaanxi Normal University, No. 620 West Chang'an Road, Chang'an Zone, Xi'an, 710119, China.
- Key Lab of Aerosol Chemistry & Physics, State Key Lab of Loess and Quaternary Geology (SKLLQG), Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China.
| | - Minrui Li
- National Demonstration Center for Experimental Geography Education, School of Geography and Tourism, Shaanxi Normal University, No. 620 West Chang'an Road, Chang'an Zone, Xi'an, 710119, China
| | - Zhibao Dong
- National Demonstration Center for Experimental Geography Education, School of Geography and Tourism, Shaanxi Normal University, No. 620 West Chang'an Road, Chang'an Zone, Xi'an, 710119, China
| | - Xiaoping Li
- National Demonstration Center for Experimental Geography Education, School of Geography and Tourism, Shaanxi Normal University, No. 620 West Chang'an Road, Chang'an Zone, Xi'an, 710119, China
| | - Lijun Wang
- National Demonstration Center for Experimental Geography Education, School of Geography and Tourism, Shaanxi Normal University, No. 620 West Chang'an Road, Chang'an Zone, Xi'an, 710119, China
| | - Yongming Han
- Key Lab of Aerosol Chemistry & Physics, State Key Lab of Loess and Quaternary Geology (SKLLQG), Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Junji Cao
- Key Lab of Aerosol Chemistry & Physics, State Key Lab of Loess and Quaternary Geology (SKLLQG), Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
- Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
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Lee YS, Kim YK, Choi E, Jo H, Hyun H, Yi SM, Kim JY. Health risk assessment and source apportionment of PM 2.5-bound toxic elements in the industrial city of Siheung, Korea. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:66591-66604. [PMID: 35507225 PMCID: PMC9066139 DOI: 10.1007/s11356-022-20462-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 04/22/2022] [Indexed: 05/19/2023]
Abstract
The emission sources and their health risks of fine particulate matter (PM2.5) in Siheung, Republic of Korea, were investigated as a middle-sized industrial city. To identify the PM2.5 sources with error estimation, a positive matrix factorization model was conducted using daily mean speciated data from November 16, 2019, to October 2, 2020 (95 samples, 22 chemical species). As a result, 10 sources were identified: secondary nitrate (24.3%), secondary sulfate (18.8%), traffic (18.8%), combustion for heating (12.6%), biomass burning (11.8%), coal combustion (3.6%), heavy oil industry (1.8%), smelting industry (4.0%), sea salts (2.7%), and soil (1.7%). Based on the source apportionment results, health risks by inhalation of PM2.5 were assessed for each source using the concentration of toxic elements portioned. The estimated cumulative carcinogenic health risks from the coal combustion, heavy oil industry, and traffic sources exceeded the benchmark, 1E-06. Similarly, carcinogenic health risks from exposure to As and Cr exceeded 1E-05 and 1E-06, respectively, needing a risk reduction plan. The non-carcinogenic risk was smaller than the hazard index of one, implying low potential for adverse health effects. The probable locations of sources with relatively higher carcinogenic risks were tracked. In this study, health risk assessment was performed on the elements for which mass concentration and toxicity information were available; however, future research needs to reflect the toxicity of organic compounds, elemental carbon, and PM2.5 itself.
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Affiliation(s)
- Young Su Lee
- Department of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Young Kwon Kim
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- Division of Policy Research, Green Technology Center, Seoul, 04554, Republic of Korea
| | - Eunhwa Choi
- Institute of Construction and Environmental Engineering, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Hyeri Jo
- Department of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Hyeseung Hyun
- College of Environmental Design, University of California, Berkeley, Berkeley, CA, USA
| | - Seung-Muk Yi
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Jae Young Kim
- Department of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
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Source Apportionment and Toxic Potency of PM2.5-Bound Polycyclic Aromatic Hydrocarbons (PAHs) at an Island in the Middle of Bohai Sea, China. ATMOSPHERE 2022. [DOI: 10.3390/atmos13050699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) have attracted more attention because of their high atmospheric concentration and toxicity in recent decades. In this study, a total of 60 PM2.5 samples were collected from Beihuangcheng Island in Bohai Sea, China, from August 2017 to March 2018 for analyzing 16 congeners of PAHs (Σ16PAHs). Sources of PAHs were apportioned by a positive matrix factorization (PMF) model and the carcinogenic risk due to exposure to the PAHs was estimated by the toxicity equivalent of BaP (BaPeq). The results showed that the average concentration of Σ16PAHs was 35.3 ± 41.8 ng/m3. The maximum concentration of Σ16PAHs occurred in winter, followed by spring and autumn, and summer. The PMF modeling apportioned the PAHs into four sources, coal combustion, biomass burning, vehicle exhaust, and petroleum release, contributing 43.1%, 25.8%, 24.7%, and 6.39%, respectively. The average ΣBaPeq concentration was 2.32 ± 4.95 ng/m3 during the sampling period, and vehicle exhaust was the largest contributor. The finding indicates that more attention should be paid to reduce the emissions from coal combustion and vehicle exhaust because they were the largest contributors to the PAH concentration in PM2.5 and ΣBaPeq concentration, respectively.
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Yu Z, Wang H, Zhang X, Gong S, Liu Z, Zhao N, Zhang C, Xie X, Wang K, Liu Z, Wang JS, Zhao X, Zhou J. Long-term environmental surveillance of PM2.5-bound polycyclic aromatic hydrocarbons in Jinan, China (2014-2020): Health risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127766. [PMID: 34916105 DOI: 10.1016/j.jhazmat.2021.127766] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 05/10/2023]
Abstract
We established long-term surveillance sites in Jinan city to monitor PM2.5 particles (PM2.5) and PM2.5-bound PAHs (2014-2020). The range of PM2.5 was 15-230 µg/m3. The average annual ƩPAH16 were 433 ± 271 ng/m3 (industrial area) and 299 ± 171.8 ng/m3 (downtown). PAHs captured in winter accounted for 61.5% (industrial area) and 59.1% (downtown) of total PAHs. A hazardous seasonal benzo[a]pyrene level was detected in 2015-2016 winter as 14.03 ng/m3 (14 folds of EU standard). The dominant PM2.5-bound PAHs were benzo[b]fluoranthene (24-26%), chrysene (19-20%), benzo[g,h,i]perylene (15%), Indeno(1,2,3-cd)pyrene (12%) and Benzo[a]pyrene (10%). Toxic equivalent quotients of PAHs were 4.93 ng/m3 (industrial area) and 3.13 ng/m3 (downtown). Excess cancer risks (ECRs) were 4.3 × 10-4 ng/m3 and 2.7 × 10-4 ng/m3, respectively. The ECRs exceeded EPA regulatory limit of 1 × 10-6 ng/m3 largely. Non-negligible excess lifetime cancer risks were found as 36 and 26 related cancer incidences per 1,000,000 people. Consistently, local prevalence of lung cancer raise from 56.97/100,000 to 72.38/100,000; the prevalence of thyroid cancer raise from 10.12/100,000 to 45.26/100,000 from 2014 to 2020. Our findings suggest an urgent need to investigate the adverse health effects of PAHs on local population and we call for more strictly restriction on coal consumption and traffic tail gas emission.
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Affiliation(s)
- Zhigang Yu
- Institute of Physical and Chemical Analysis, Jinan Municipal Center for Disease Control and Prevention, 250021, China.
| | - Hong Wang
- Clinical Laboratory, Jinan Hospital, 250013, China.
| | - Xin Zhang
- Institute of Physical and Chemical Analysis, Jinan Municipal Center for Disease Control and Prevention, 250021, China.
| | - Shuping Gong
- Institute of Chronic and Non-communicable Disease, Jinan Municipal Center for Disease Control and Prevention, 250021, China.
| | - Zhen Liu
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research, University of Jinan, 250022, China.
| | - Ning Zhao
- School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China.
| | - Cuiqin Zhang
- School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China.
| | - Xiaorui Xie
- School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China.
| | - Kaige Wang
- School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China.
| | - Zhong Liu
- Institute of Physical and Chemical Analysis, Jinan Municipal Center for Disease Control and Prevention, 250021, China.
| | - Jia-Sheng Wang
- Interdisciplinary Toxicology Program and Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA 30602, USA.
| | - Xiulan Zhao
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China; School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China.
| | - Jun Zhou
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China; School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China.
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A New Method for the Assessment of the Oxidative Potential of Both Water-Soluble and Insoluble PM. ATMOSPHERE 2022. [DOI: 10.3390/atmos13020349] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Water-soluble and insoluble fractions of airborne particulate matter (PM) exhibit different toxicological potentials and peculiar mechanisms of action in biological systems. However, most of the research on the oxidative potential (OP) of PM is focused exclusively on its water-soluble fraction, since experimental criticisms were encountered for detaching the whole PM (soluble and insoluble species) from field filters. However, to estimate the actual potential effects of PM on human health, it is essential to assess the OP of both its water-soluble and insoluble fractions. In this study, to estimate the total OP (TOP), an efficient method for the detachment of intact PM10 from field filters by using an electrical toothbrush was applied to 20 PM10 filters in order to obtain PM10 water suspensions to be used for the DCFH, AA and DTT oxidative potential assays (OPDCFH, OPAA and OPDTT). The contribution of the insoluble PM10 to the TOP was evaluated by comparing the TOP values to those obtained by applying the three OP assays to the water-soluble fraction of 20 equivalent PM10 filters. The OP of the insoluble fraction (IOP) was calculated as the difference between the TOP and the WSOP. Moreover, each PM10 sample was analyzed for the water-soluble and insoluble fractions of 10 elements (Al, Cr, Cs, Cu, Fe, Li, Ni, Rb, Sb, Sn) identified as primary elemental tracers of the main emission sources in the study area. A principal component analysis (PCA) was performed on the data obtained to identify the predominant sources for the determination of TOP, WSOP, and IOP. Results showed that water-soluble PM10 released by traffic, steel plant, and biomass burning is mainly responsible for the generation of the TOP as well as of the WSOP. This evidence gave strength to the reliability of the results from OP assays performed only on the water-soluble fraction of PM. Lastly, the IOPDCFH and IOPDTT were found to be principally determined by insoluble PM10 from mineral dust.
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Wang XN, Wang HJ, Ma Y, Liu JR, Hao Y, Ma CQ, Liu N, Cui YX, Shi XM, Gong FL, Wu XL. Concentrations, seasonal trends, sources, health risk and subchronic toxicity to the respiratory and immune system of PAHs in PM 2.5 in Xi'an. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2022; 58:276-283. [PMID: 35137675 DOI: 10.1080/10934529.2022.2033582] [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: 09/23/2021] [Revised: 01/11/2022] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) have been proved to be hazardous to health. Previous studies have focused on the distribution and sources of PAHs, whereas there is little knowledge of the damage to organs. Here we sought to investigate the pollution level and seasonal variation characteristics of PAHs in PM2.5 in Xi'an and assess the health risk, to establish a PAHs exposure model, and investigate the toxicological effects of PAHs on the respiratory and immune functions. A sub-chronic exposure model of PAHs was established by inhalation. The pathological changes of lung tissues were observed with a light microscope. Inflammatory reactions in alveolar lavage fluid were determined using the corresponding kit. The levels of interleukin-6 (IL-6) and interleukin-8 (IL-8) were detected with enzyme linked immunosorbent assay (ELISA) kit; the proliferation of lymphocytes in spleen was detected with methyl tetrazolium (MTT); DNA immune damage was determined with DNA gel electrophoresis. The results showed that (1) the total concentration of 16 PAHs ranged from 41.1 to 387 ng/m3, with a mean value of 170 ng/m3, and the concentration of PAHs in PM2.5 was higher in winter than in other seasons. (2) The sources of PAHs in the atmosphere of Xi'an urban area were mainly coal combustion, and the equivalent carcinogenic concentration of PAHs in PM2.5 was 3.9 ng/m3. (3) Foreign body granuloma formation and inflammatory cell damage were observed in the lungs of rats infected with toxin; the levels of reactive oxygen species (ROS) and mobile device assistant (MDA) increased while nitric oxide synthase (NOS) decreased with the increase of dose; the expression levels of IL-6 and IL-8 elevated with the increase of toxin dose, showing an obvious dose-effect relationship; the level of PAHs damage to cells showed a dose-effect relationship. Sub-chronic exposure to PAHs could cause sustained inflammatory injury to the organism. Measures should be taken to counter the problems of PAHs in PM2.5 in Xi'an and relevant health promotion strategies should be developed.
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Affiliation(s)
- Xiang-Ni Wang
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Hui-Juan Wang
- Department of Dermatology, the Ninth Hospital of Xi'an, Xi'an, China
| | - Yan Ma
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Jin-Ren Liu
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yue Hao
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Cai-Qin Ma
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Na Liu
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yi-Xin Cui
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xing-Min Shi
- School of Public Health, Medical Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Fu-Liang Gong
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xi-Li Wu
- Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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Zhao H, Fu L, Xiang HX, Xiang Y, Li MD, Lv BB, Tan ZX, Gao L, Zhang C, Xu DX. N-acetylcysteine alleviates pulmonary inflammatory response during benzo[a]pyrene-evoked acute lung injury. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:3474-3486. [PMID: 34387821 DOI: 10.1007/s11356-021-15914-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/07/2021] [Indexed: 06/13/2023]
Abstract
Benzo[a]pyrene (BaP), a representative polycyclic aromatic hydrocarbon, exists widely in automobile emissions and polluted atmosphere. The current study aimed to describe pulmonary inflammation during BaP-induced acute lung injury (ALI). All mice except controls were intratracheally instilled with a single dose of BaP (90 μg per mouse). The alveolar structure was damaged, accompanied by numerous inflammatory cell infiltration around pulmonary interstitium and small airway. Airway wall area and mean linear intercept were reduced in BaP-exposed mouse lungs. By contrast, airway wall thickness and destructive index were elevated in BaP-exposed mouse lungs. Several inflammatory genes, such as Tnf-α, Il-1β, Il-6, Mip-2, Kc, and Mcp-1, were upregulated in mouse lungs. Phosphorylated IκBα was elevated in BaP-exposed mouse lungs. Nuclear translocation of NF-κB p65 and p50 was accordingly observed in BaP-exposed mouse lungs. Several molecules of the MAPK pathway, including JNK, ERK1/2, and p38, were activated in mouse lungs. Of interest, pretreatment with N-acetylcysteine (NAC), an antioxidant, alleviated BaP-induced ALI. Moreover, NAC attenuated BaP-induced inflammatory cell infiltration in mouse lungs and inflammatory gene upregulation in A549 cells. In addition, NAC attenuated BaP-induced NF-κB activation in A549 cells and mouse lungs. These results suggest that NAC alleviates pulmonary inflammatory response during BaP-evoked ALI.
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Affiliation(s)
- Hui Zhao
- Department of Toxicology, Anhui Medical University, Hefei, 230032, China
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Lin Fu
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Hui-Xian Xiang
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Ying Xiang
- Department of Toxicology, Anhui Medical University, Hefei, 230032, China
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Meng-Die Li
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Bian-Bian Lv
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Zhu-Xia Tan
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Lan Gao
- Department of Toxicology, Anhui Medical University, Hefei, 230032, China
| | - Cheng Zhang
- Department of Toxicology, Anhui Medical University, Hefei, 230032, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei, 230032, China.
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11
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Zhang K, Yang L, Li Q, Li R, Zhang D, Xu W, Feng J, Wang Q, Wang W, Huang L, Yaluk EA, Wang Y, Yu JZ, Li L. Hourly measurement of PM 2.5-bound nonpolar organic compounds in Shanghai: Characteristics, sources and health risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 789:148070. [PMID: 34323831 DOI: 10.1016/j.scitotenv.2021.148070] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/20/2021] [Accepted: 05/23/2021] [Indexed: 06/13/2023]
Abstract
Fine particulate matter (PM2.5)-bound nonpolar organic compounds (NPOCs), including polycyclic aromatic hydrocarbons (PAHs) and alkanes, are commonly used as typical molecular markers for detailed source identification. Online thermal desorption aerosol gas chromatography-mass spectrometry (TAG) system can obtain ambient data with hourly resolution, which is of great importance for investigating the diurnal characteristics and refined source identification of NPOCs. From June to October 2020, hourly ambient aerosol samples were collected and analyzed to investigate the characteristics and sources of 14 PAHs and 15 alkanes (C21-C35) in PM2.5 using TAG at a suburban site of Baoshan district in Shanghai, China. The average concentration of summed PAHs and alkanes during the sampling period was 1.27 ± 1.4 ng/m3 and 8.87 ± 3.46 ng/m3, respectively, in which Benzo[b]fluoranthene (BbF), Benzo[ghi]perylene (BghiP) and Indeno[1,2,3-cd]pyrene (IcdP) are the dominant PAHs species, with n-Heptacosane (C27), n-Nonacosane (C29) and n-Hentriacontane (C31) being the most abundant n-alkane species. Carbon preference index (CPI) and carbon maximum (Cmax) number indicated that the sources of alkanes shifted from biogenic-oriented (such as plant wax) in the summer to anthropogenic-dominated (such as fossil fuels) in the autumn. Results from trajectory cluster analysis and potential source contribution function (PSCF) modeling showed that alkanes were mainly from the middle and lower reaches of the Yangtze River Plain including Anhui, Jiangxi, and Zhejiang provinces, while PAHs were mainly from northeastern China. Positive Matrix Factorization (PMF) model results indicated that gasoline (41.48%) and diesel (21.82%) were the two major sources of PM2.5-bound PAHs in summer and fall of 2020 in Shanghai, followed by coal consumption or catering (19.96%) and biomass burning (16.74%). Diurnal variation of PAHs sources resolved by PMF showed characteristic features consistent with the corresponding anthropogenic activities. For example, gasoline vehicle exhaust showed higher concentrations during traffic rush hours; while coal consumption or catering presented higher concentrations during lunch times from 10:00 to 12:00. In addition, the TAG data coupling with PMF also can be capable for source appointment of short-duration episodes. Health risk assessment showed that adult women were at greater lifetime cancer risk (ILCR) than people in other age groups, and people may subject to higher health risks at morning and night time. This work demonstrates that hourly NPOCs measured by TAG are uniquely specific on refined source identification and investigation into the characteristics of diurnal variations.
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Affiliation(s)
- Kun Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Liumei Yang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Qing Li
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Rui Li
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Dongping Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Wen Xu
- Aerodyne Research Inc., Billerica, MA, USA
| | - Jialiang Feng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Qiongqiong Wang
- Department of Chemistry, Hong Kong University of Science & Technology, Hong Kong, China
| | - Wu Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Ling Huang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Elly Arukulem Yaluk
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Yangjun Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China
| | - Jian Zhen Yu
- Department of Chemistry, Hong Kong University of Science & Technology, Hong Kong, China; Division of Environment & Sustainability, Hong Kong University of Science & Technology, Hong Kong, China
| | - Li Li
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai, China.
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12
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Zeng H, Zhang L, Sun F, Liu J, Fang B, Yang W, Meng C, Wang M, Wang Q, Hao Y. Inhalation bioaccessibility, health risk assessment, and source appointment of ambient PM 2.5-bound polycyclic aromatic hydrocarbons (PAHs) in Caofeidian, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:47574-47587. [PMID: 33893916 DOI: 10.1007/s11356-021-13965-9] [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: 10/16/2020] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
The inhalation bioaccessibility of polycyclic aromatic hydrocarbons (PAHs) is significant for accurately assessing the health risks posed by PM2.5-bound PAHs. In this study, 96 PM2.5 samples from Caofeidian, China, were investigated for PM2.5-bound PAH source appointment and bioaccessibility assessment during four seasons. PAH18 potential sources were identified by positive matrix factorization. The inhalation bioaccessibility of PAH18 was investigated by simulated epithelial lung fluid extraction. The incremental lifetime cancer risk (ILCR) model was subsequently used to evaluate the carcinogenic risk posed by PM2.5-bound PAHs in children, teenagers, and adults. Four potential sources of PM2.5-bound PAH18 were identified: industry emissions (44%), petroleum volatilization (30%), vehicle emissions (15%), and coal combustion (11%). The average inhalation bioaccessibility of PAHs ranged from 17.8% (dibenzo [a,h] anthracene) to 67.9% (fluorene). The ILCR values for children and teenagers were lower than the acceptable levels (10-6) in the four seasons considering inhalation bioaccessibility. However, the ILCR value of adults was higher than the threshold in winter (1.26 × 10-6). Source identification suggested that reducing industrial pollution was the primary measure for controlling PM2.5-bound PAHs in Caofeidian. Additionally, the inhalation bioaccessibility of PM2.5-bound PAHs was evaluated to precisely estimate the health risks caused by PAHs.
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Affiliation(s)
- Hao Zeng
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Lei Zhang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Feize Sun
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Jiajia Liu
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Bo Fang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Wenqi Yang
- Affiliated Hospital, North China University of Science and Technology, Tangshan, 063000, China
| | - Chunyan Meng
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Manman Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Qian Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China.
| | - Yulan Hao
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China.
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13
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Zhang L, Yang Z, Liu J, Zeng H, Fang B, Xu H, Wang Q. Indoor/outdoor relationships, signatures, sources, and carcinogenic risk assessment of polycyclic aromatic hydrocarbons-enriched PM 2.5 in an emerging port of northern China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:3067-3081. [PMID: 33501592 DOI: 10.1007/s10653-021-00819-z] [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: 07/08/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Humans spend most of their time in indoor environments, thus a thorough understanding of indoor and outdoor PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) origins for accurate assessment of health risks is required. In the present study, 84 pairs of PM2.5 samples from indoor (laboratory) and outdoor (campus) locations were collected from April to December 2018 in Caofeidian, China. The annual median concentration of PM2.5 outdoors was 90.80 µg/m3, 9.08 times higher than the annual standard of WHO guideline (10 µg/m3). Indoor PM2.5 annual median concentration (41.80 µg/m3) was also higher than the annual standard of ASHRAE guideline (15 µg/m3). The annual median concentrations of ∑18PAHs indoors (44.23 ng/m3) and outdoors (189.6 ng/m3) were highest in winter and descended in the order of autumn > spring > summer. Contrary to summer and autumn, indoor/outdoor concentration ratios were less than 1 in spring and winter, indicating that the contribution of outdoor particle infiltration was more significant than that of indoor sources. The positive matrix factorization model suggested that indoor PAHs came from three sources: vehicle emissions (43%), biomass burning (37%), industry emissions, and coal combustion (20%). Outdoor PAHs came from four sources: petroleum volatilization (39%), vehicle emissions (30%), coal combustion (18%), and biomass burning (13%). The incremental lifetime cancer risk values of indoor and outdoor PAHs in winter exceeded the acceptable level (10-6), and the carcinogenic risk of adults was higher than that of children and teenagers. These results indicated that simultaneous monitoring of indoor and outdoor PAHs is recommended for accurate assessment of health risk, and the analysis in the current work should be helpful to formulate policies to reduce PAHs emissions.
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Affiliation(s)
- Lei Zhang
- School of Public Health, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, People's Republic of China
| | - Ze Yang
- Department of Occupational and Environmental Health, Tianjin Medical University, Tianjin, 300041, People's Republic of China
| | - Jiajia Liu
- School of Public Health, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, People's Republic of China
| | - Hao Zeng
- School of Public Health, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, People's Republic of China
| | - Bo Fang
- School of Public Health, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, People's Republic of China
| | - Houjun Xu
- School of Public Health, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, People's Republic of China
| | - Qian Wang
- School of Public Health, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, People's Republic of China.
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14
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Li P, Jing J, Guo W, Guo X, Hu W, Qi X, Wei WQ, Zhuang G. The associations of air pollution and socioeconomic factors with esophageal cancer in China based on a spatiotemporal analysis. ENVIRONMENTAL RESEARCH 2021; 196:110415. [PMID: 33159927 DOI: 10.1016/j.envres.2020.110415] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 10/21/2020] [Accepted: 10/28/2020] [Indexed: 06/11/2023]
Abstract
Rapid urbanization and industrialization in China have incurred serious air pollution and consequent health concerns. In this study, we examined the modifying effects of urbanization and socioeconomic factors on the association between PM2.5 and incidence of esophageal cancer (EC) in 2000-2015 using spatiotemporal techniques and a quasi-Poisson generalized linear model. The results showed a downward trend of EC and high-risk areas aggregated in North China and Huai River Basin. In addition, a stronger association between PM2.5 and incidence was observed in low urbanization group, and the association was stronger for females than males. When exposure time-windows were adjusted as 0, 5, 10, 15 years, the incidence risk increased by 2.48% (95% CI: 2.23%, 2.73%), 2.20% (95% CI: 1.91%, 2.49%), 2.18% (95% CI%: 1.92%, 2.43%), 1.87% (95% CI%:1.64, 2.10%) for males, respectively and 4.03% (95% CI: 3.63%, 4.43%), 2.20% (95% CI: 1.91%, 2.49%), 3.97% (95% CI: 3.54%, 4.41%), 3.06% (95% CI: 2.71%, 3.41%) for females, respectively. The findings indicated people in low urbanization group faced with a stronger EC risk caused by PM2.5, which contributes to a more comprehensive understanding of combating EC challenges related to PM2.5 pollution.
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Affiliation(s)
- Peng Li
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Jing Jing
- College of Geography and Environment, Baoji University of Arts and Sciences, Baoji, Shaanxi, China
| | - Wenwen Guo
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Xiya Guo
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Wenbiao Hu
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia
| | - Xin Qi
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
| | - Wen-Qiang Wei
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Guihua Zhuang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
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15
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He Y, Yang C, He W, Xu F. Nationwide health risk assessment of juvenile exposure to polycyclic aromatic hydrocarbons (PAHs) in the water body of Chinese lakes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:138099. [PMID: 32229384 DOI: 10.1016/j.scitotenv.2020.138099] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/15/2020] [Accepted: 03/19/2020] [Indexed: 06/10/2023]
Abstract
The high emissions of polycyclic aromatic hydrocarbons (PAHs) pose a serious threat to the lake ecosystem and human health, and the human health risk assessment of PAH exposure is expected as an urgent project in China. This paper focused on 44 Chinese lakes in 6 lake zones to investigate the occurrence, composition and source of 19 PAHs in water body and estimate the human health risk under PAH exposure. The "List of PAH Priority Lakes" in China was generated based on the combination of incremental lifetime cancer risk (ILCR) model and Monte Carlo simulation. Our results showed that the Σ17 PAHs ranged from 3.75 ng·L-1 to 368.68 ng·L-1 with a median of 55.88 ng·L-1. Low-ring PAHs were the predominant compounds. PAH profiles varied significantly at lake zone level. Diagnostic ratios showed that PAHs might derive from petroleum and coal or biomass combustion. Benzo[a]pyrene-equivalent toxic concentrations (BaPeq) of the Σ17 PAHs ranged from 0.07 ng·L-1 to 2.26 ng·L-1 (0.62 ± 0.52 ng·L-1, mean ± standard deviation) with a median of 0.47 ng·L-1. Benzo[a]anthracene (BaA), benzo[a]pyrene (BaP) and benzo[e]pyrene (BeP) were the main toxic isomers. Juvenile exposure to PAHs via oral ingestion (drinking) and dermal contact (showering) had negligible and potential health risks, respectively. Juveniles were the sensitive population for PAH exposure. 15 lakes were screened into the "List of PAH Priority Lakes" in three priority levels: first priority (Level A), moderate priority (Level B) and general priority (Level C). Lake Taihu, Lake Chaohu and Lake Hongze were the extreme priority lakes. Optimizing the economic structures and reducing the combustion emissions in these areas should be implemented to reduce the population under potential health risk of PAHs.
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Affiliation(s)
- Yong He
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Chen Yang
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Wei He
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China; MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China
| | - Fuliu Xu
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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Ma H, Guo H, Zhang W, Hu F, Huang Y, Zeng Y, Liu Y, Li C, Wang J. The effects of phenanthrene exposure on Treg and Th17 cells related cytokines in female rats. Toxicol Res (Camb) 2020; 9:283-289. [PMID: 32670559 PMCID: PMC7329182 DOI: 10.1093/toxres/tfaa030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/20/2020] [Accepted: 04/20/2020] [Indexed: 01/18/2023] Open
Abstract
Phenanthrene (Phe) female rat model was established to explore the mechanism of Phe on immune impairment. The rats were randomly divided into three groups, including control (C), low (L), and high (H) groups. Phe was supplied to L and H groups at the dose of 180 and 900 mg/kg orally at first day and with the dose of 90 and 450 mg/kg by intraperitoneal injection at the last 2 days. The C group was enriched with the same volume of corn oil. The liver tissue was collected. Then, the protein and mRNA expressions of interleukin (IL)-35 and the concentration IL-17 were detected to evaluate the function of regulatory T cells (Treg cells) and T helper 17 cells (Th17 cells). In addition, IL-1β and interferon-γ (IFN-γ) were analyzed to evaluate the immune impairment. The results showed that the protein and mRNA expressions of IL-35 decreased significantly in H groups (P < 0.05). Meanwhile, there were significant increases in IL-17, IFN-γ and IL-1β in the liver of H group (P < 0.05). This study demonstrated that Phe exposure might be associated with the immune impairment via changing inflammatory mediators including IL-35 and IL-17 in female rats.
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Affiliation(s)
- Haitao Ma
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Huizhen Guo
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Wenwen Zhang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Fengjing Hu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Yushan Huang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Yong Zeng
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Yang Liu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Chengyun Li
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Junling Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, China
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