| Source apportionment and risk assessment for polycyclic aromatic hydrocarbons in soils at a typical coking plant | |
| Zhang, Qifan; Meng, Jing; Su, Guijin; Liu, Zhelun; Shi, Bin; Wang, Tieyu | |
| 2021-10-01 | |
| Source Publication | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| ISSN | 0147-6513 |
| Volume | 222Pages:- |
| Abstract | Polycyclic 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 | 环境纳米技术与健康效应重点实验室 |
| Keyword | PAHs Adequate Source apportionment Coking plant Soil Risk assessment |
| WOS Research Area | Environmental Sciences ; Toxicology |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/45897 |
| Collection | 环境纳米技术与健康效应重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Nanotechnol & Hlth Effects, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shantou Univ, Inst Marine Sci, Shantou 515063, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Qifan,Meng, Jing,Su, Guijin,et al. Source apportionment and risk assessment for polycyclic aromatic hydrocarbons in soils at a typical coking plant[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2021,222:-. |
| APA | Zhang, Qifan,Meng, Jing,Su, Guijin,Liu, Zhelun,Shi, Bin,&Wang, Tieyu.(2021).Source apportionment and risk assessment for polycyclic aromatic hydrocarbons in soils at a typical coking plant.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,222,-. |
| MLA | Zhang, Qifan,et al."Source apportionment and risk assessment for polycyclic aromatic hydrocarbons in soils at a typical coking plant".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 222(2021):-. |
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| Source apportionment（8204KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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