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Ecological assessment of water quality in an urban river replenished with reclaimed water: the phytoplankton functional groups approach
Zhu, Liying; Chen, Yuanyuan; Wang, Yawei; Wang, Chunrong; Wei, Yuansong
2021-11-01
Source PublicationENVIRONMENTAL RESEARCH COMMUNICATIONS
ISSN0147-6513
Volume222Pages:-
AbstractPolycyclic aromatic hydrocarbons (PAHs) are widely present in the environment. The coking industry is an important industrial source of PAHs. Coke production in China accounts for 67.44% of total global coke production. Tangshan, a coastal city on the Bohai Rim, contains the largest cluster of coking plants in China. Extremely high PAH emissions in Tangshan may cause long-distance cross-border pollution problems. In this study, the concentrations and sources of 16 priority PAHs in soil at a coking plant in Tangshan were determined and the risks posed by the PAHs were assessed. The PAH concentrations were generally higher in surface soil than subsurface soil, particularly near the coke oven, crude benzol, and coal blending areas. The dibenz[a,h] anthracene (DBA) concentrations were higher than the risk screening value (1500 ng g-1) but lower than the control value (15,000 ng g-1) for type II land defined in Chinese standard (GB36600-2018). The main sources of PAHs were coal combustion, the coke oven, and traffic. The PAH concentrations were higher in the ammonium sulfate, boiler room, coal blending, and coke oven areas than in the other areas. Toxic equivalent concentrations were calculated to assess the toxic and carcinogenic risks posed by PAHs. The toxic equivalent concentrations were relatively high in the boiler, crude benzol, and coal blending areas, where the toxic equivalent concentrations for the sums of seven highly carcinogenic PAHs contributed 95% of the toxic equivalent concentrations for the sums of the 16 PAHs that were analyzed. The carcinogenic risks posed to humans were therefore assessed using the concentrations of the seven highly carcinogenic PAHs. Dermal contact was found to be an important exposure pathway leading to carcinogenic risks. The carcinogenic risk posed by DBA was 1 x 10-6 but < 5 x 10-6, indicating that DBA concentrations at the study site monitored closely.
Department水污染控制实验室
KeywordPAHs Adequate Source apportionment Coking plant Soil Risk assessment
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46871
Collection水污染控制实验室
Affiliation1.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China
3.China Univ Min & Technol, Sch Environm Sci & Spatial Informat, Xuzhou 221116, Peoples R China
4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Lab Water Pollut Control Technol, Beijing 100085, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Liying,Chen, Yuanyuan,Wang, Yawei,et al. Ecological assessment of water quality in an urban river replenished with reclaimed water: the phytoplankton functional groups approach[J]. ENVIRONMENTAL RESEARCH COMMUNICATIONS,2021,222:-.
APA Zhu, Liying,Chen, Yuanyuan,Wang, Yawei,Wang, Chunrong,&Wei, Yuansong.(2021).Ecological assessment of water quality in an urban river replenished with reclaimed water: the phytoplankton functional groups approach.ENVIRONMENTAL RESEARCH COMMUNICATIONS,222,-.
MLA Zhu, Liying,et al."Ecological assessment of water quality in an urban river replenished with reclaimed water: the phytoplankton functional groups approach".ENVIRONMENTAL RESEARCH COMMUNICATIONS 222(2021):-.
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