Article
Environmental Sciences
Shu Zhang, Hailing Li, Rujian He, Weiqiang Deng, Shengtao Ma, Xin Zhang, Guiying Li, Taicheng An
Summary: The study assessed the impact of coke production on residential areas and human health by sampling the soils near a typical coking plant. The results showed that the concentration of polycyclic aromatic hydrocarbons (PAHs) and their derivatives in residential area soils near the coke plant was significantly higher compared to areas far from the plant. The study also identified the areas within the coke plant that were most contaminated and highlighted the potential health risks posed by certain PAH derivatives. Overall, the study provides important insights into the pollution characteristics and potential risks associated with coke plants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Fabiana Di Duca, Paolo Montuori, Ugo Trama, Armando Masucci, Gennaro Maria Borrelli, Maria Triassi
Summary: Increased concerns about the toxicities of Polycyclic Aromatic Hydrocarbons (PAHs) and their associated ecotoxicology issue in estuarine sediments have drawn worldwide attention. This study evaluated the levels of PAHs in the sediments of Sele, Sarno, and Volturno Rivers, and estimated the cancerogenic risk from dermal and ingestion exposure to PAHs. The results showed high PAH concentrations in the sediments and a moderate risk of cancer associated with dermal contact with the PAHs.
Article
Engineering, Environmental
Xinhui Sun, Qi Zhao, Xuelin Li, Qiuyue Zhang, Meng Gao, Zhanpeng Ge, Yu Wang, Hongwen Sun
Summary: This study measured the concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) in soil samples from two contaminated industrial sites in Eastern China. The results showed higher concentrations of PAHs in the surface soil, with concentrations decreasing with increasing soil depth. The vertical migration of PAHs was found to be correlated with their hydrophobicity. Risk analysis showed high ecological risk and potential health risk associated with PAHs in the studied sites.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Multidisciplinary Sciences
Md Mahfuz Islam, Sayada Momotaz Akther, Md Faruque Hossain, Zakia Parveen
Summary: Currently, the release of trace metals in the Sundarbans mangrove areas in Bangladesh is a growing concern due to various causes. A study was conducted to investigate the distribution, contamination level, and ecotoxicity of eight trace metals in Sundarbans soils. The results showed that most trace metals were present in higher concentrations compared to other geological references. Statistical analyses revealed the correlations between different trace metals and soil properties. Assessment of pollution using different indices indicated moderate pollution by some metals and low pollution by others. The ecological risk index showed varying levels of risk in different areas of the Sundarbans mangroves.
SCIENTIFIC REPORTS
(2022)
Article
Soil Science
Laibin Huang, Junhong Bai, Junjing Wang, Guangliang Zhang, Wei Wang, Xin Wang, Ling Zhang, Yaqi Wang, Xinhui Liu, Baoshan Cui
Summary: This study investigated the assembly processes of bacterial and fungal communities in the topsoil of a wetland transect in the Yellow River Estuary, China. The results showed that stochastic processes primarily shaped the two communities, with bacterial assembly being controlled by homogenizing dispersal and dispersal limitation, and fungal assembly being mostly regulated by undominated processes.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Environmental Sciences
Haifu Li, Fangli Su, Chengjiu Guo, Linlin Dong, Fei Song, Chao Wei, Yunlong Zheng
Summary: Tidal flats located in the periphery of estuarine wetlands face ecological risks due to landscape evolution and human development activities. The study found that tidal flats mainly evolved into natural wetlands before 2000, rapidly changing into artificial landscapes between 2000 and 2010. Over the past 30 years, the area has generally experienced medium landscape ecological risk. Human development activities were identified as the key factor affecting the ecological risks, while river sediment discharge played a role in maintaining stable risk levels.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Qifan Zhang, Jing Meng, Guijin Su, Zhelun Liu, Bin Shi, Tieyu Wang
Summary: This study investigated the concentrations and sources of 16 priority PAHs in soil at a coking plant in Tangshan. It was found that PAH concentrations were generally higher in surface soil and mainly sourced from coal combustion, the coke oven, and traffic. The areas with higher PAH concentrations were the ammonium sulfate, boiler room, coal blending, and coke oven areas, posing potential toxic and carcinogenic risks.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Chemistry, Multidisciplinary
Mariama Janneh, Chengkai Qu, Yuan Zhang, Xinli Xing, Oscar Nkwazema, Fatuma Nyihirani, Shihua Qi
Summary: This study investigates the concentration and distribution of polycyclic aromatic hydrocarbons (PAHs) in soils in developed and remote cities in Sierra Leone. The study found that Kingtom and Waterloo soils were heavily and weakly contaminated with PAHs, respectively. The main sources of PAHs were pyrogenic sources, including petroleum, biomass, coal, and fossil fuel contributions. Soil pH had a significant impact on PAH distribution. The results of this study have important implications for environmental monitoring and pollution control measures in Sierra Leone.
Article
Multidisciplinary Sciences
Yangyang Han, Hongjie Wang, Guangming Zhang, Shengqi Zhang, Xingchun Liu, Ling Liu
Summary: This study conducted an experiment to analyze soil pollutants in different land-use types (farmland, lake, and ditch) in Zaozhadian Lake, North China Plain. The results showed that farmland had higher heavy metal contents, while lake sediments had higher levels of nitrogen and organic matter. The ecological risk was low in all land-use types, and the primary pollutants were from agricultural and industrial sources, as well as natural sources. Land-use type changes had an impact on the distribution and concentrations of pollutants.
Article
Geochemistry & Geophysics
Hui Wang, Hairu Chang, Tony R. Walker, Yinggang Wang, Hao Wu, Qing Luo, Xiaoxu Wang, Yingying Zhao
Summary: The study found that the metal pollution levels in sediments and riparian soils of the Liaohe River were moderate, showing signs of recovery. Children in the Liaohe River basin had higher health risks, mainly through oral ingestion.
APPLIED GEOCHEMISTRY
(2021)
Article
Environmental Sciences
Changhe Shi, Chengkai Qu, Wen Sun, Jingzhe Zhou, Jiawei Zhang, Yu Cao, Yuan Zhang, Jiahua Guo, Jiaquan Zhang, Shihua Qi
Summary: The study found that the concentration of polycyclic aromatic hydrocarbons (PAHs) in the Wang Lake Wetland increased significantly after the rainy season, while the concentration of dissolved phase PAHs remained stable. It was also determined that petrogenic derived compounds are the main source of PAHs in the wetland. During high-flow periods, PAH distribution and transport become more complex, and temperature-driven changes may release high molecular weight PAHs from sediment.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Nguyen Thanh Trung, Hoang Quoc Anh, Nguyen Minh Tue, Go Suzuki, Shin Takahashi, Shinsuke Tanabe, Nguyen Manh Khai, Tran Thi Hong, Pham Thi Dau, Pham Chau Thuy, Le Huu Tuyen
Summary: The study found that airborne particulate matter collected from high-traffic roads in the urban area of Hanoi contained significant levels of both PAHs and Me-PAHs, with higher molecular weight PAHs increasing in concentration as particle size decreased. The BaP-EQs derived from the PAH-CALUX assays were highly correlated with the concentrations of PAHs and Me-PAHs, indicating interaction effects between the compounds. By using the PAH-CALUX BaP-EQs, the cancer risk values (ILCR values) ranged from 1.0 x 10(-4) to 2.8 x 10(-4) for adults and from 6.4 x 10(-5) to 1.8 x 10(-4) for children.
Article
Engineering, Civil
Chang Pu, Junwu Xiong, Ruichao Zhao, Jingjing Fang, Yuan Liao, Qi Song, Jiaquan Zhang, Yuan Zhang, Huafeng Liu, Wei Liu, Wei Chen, Hong Zhou, Shihua Qi
Summary: This study investigated the distribution, possible sources, and potential health risks of polycyclic aromatic hydrocarbons (PAHs) in surface soils of karstic valleys and hilltop depressions in the Yichang area on the south bank of the Yangtze River. The results showed low concentrations of PAHs in the surface soils, primarily derived from biomass and coal combustion.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Ye Li, Min Liu, Lijun Hou, Xiaofei Li, Guoyu Yin, Pei Sun, Jing Yang, Xinyi Wei, Yue He, Dongsheng Zheng
Summary: This study investigated the geographical distribution of PAHs in estuarine sediments along different latitudes in China, using a compound-specific carbon isotope approach to characterize the sources of PAHs. It was found that human activities significantly impact PAHs pollution in estuaries, with coal processing and biomass combustion being identified as the main sources of PAHs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Bin Han, Wei Gao, Qian Li, Ang Liu, Jinwen Gong, Yunchao Zheng, Nengfei Wang, Li Zheng
Summary: This paper quantitatively analyzed the characteristics of persistent toxic substances (PTSs) in soil of Ny-angstrom lesund in the Arctic and analyzed the sources and toxicity risks of polycyclic aromatic hydrocarbons (PAHs) in the soil. The study found no obvious spatial distribution of PAHs in the area and identified LMW-PAHs as the main PAHs, mainly tricyclic PAHs. The results showed that the PAHs in soil mainly came from petroleum source and petroleum combustion source, as well as incomplete combustion of coal and wood, with some contribution from atmospheric transport. Ecological risk assessment results showed that the PAHs in soil did not pose a toxicity risk, and the possibility of ecological risk was very low in Ny-angstrom lesund in the Arctic.