Levels, sources, and risk assessment of PAHs residues in soil and plants in urban parks of Northwest China
文献类型： 外文期刊
作者： Ailijiang, Nuerla 1 ; Zhong, Naifu 1 ; Zhou, Xiaolong 3 ; Mamat, Anwar 4 ; Chang, Jiali 5 ; Cao, Shuangyu 3 ; Hua, Zhenyu 3 ; Li, Nanxin 1 ;
作者机构： 1.Xinjiang Univ, Coll Ecol & Environm, Educ Minist, Key Lab Oasis Ecol, Urumqi 830017, Peoples R China
2.Minist Educ, Xinjiang Jinghe Observat & Res Stn Temperate Dese, Urumqi 830017, Peoples R China
3.Xinjiang Acad Agr Sci, Lab Qual & Safety Risk Assessment AgroProd Urumqi, Inst Qual Stand & Testing Technol Agroprod, Minist Agr,Key Lab Agroprod Qual & Safety Xinjian, Urumqi 830091, Peoples R China
4.Xinjiang Univ, Sch Chem Engn & Technol, Urumqi 830017, Peoples R China
5.Leshan Normal Univ, Sch Chem Resources & Environm, Div Environm Engn, Leshan 614000, Sichuan, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN： 2045-2322
年卷期： 2022 年 12 卷 1 期
页码：
收录情况： SCI
摘要： Polycyclic aromatic hydrocarbons (PAHs) will be ingested by people through different ways to threaten their health during play, so the environmental quality of the park directly affects the health of tourists and residents. Using eight typical parks in Urumqi in Northwest China as the study area, we used GC-MS to detect the PAHs content in the park surface soil and 10 common plants in the park in different seasons. The results showed that the content of PAHs in park soil in the summer was 5-6 times that in the winter, and the monomer PAHs in some park soil sampling points were higher than the soil pollution risk screening value. And the contamination level at these sampling sites was also higher compared to other sampling sites. In summer, the plants with high PAHs content in leaves are short herbs, while in winter, they are tall arbors. The PAHs of the park soil are mainly composed of high-cyclic aromatic hydrocarbons, and are mainly of traffic origin. The proportion of low-ring aromatic hydrocarbons in the winter was significantly higher than that in the summer. The source of PAHs in plants in summer is similar to that in soil, but the source of PAHs in plants in winter is more complex. The toxicity equivalent concentration method values of soil PAHs in South Park, Zhiwu Park, Shihua Park and Toutunhe Park were higher than that in other parks. The lifetime carcinogenic risk (ILCRs) values of some sampling points in these four parks in the summer were relatively high. The average ILCRs of adults and children in all parks reached a low-risk level in summer. The carcinogenic risk in children is much higher than that of adults.
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