Liu Sheng, Wang Chao, Wang Peifang, Chen Juan, Wang Xun, Yuan Qiusheng
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
Environ Res. 2021 Jul;198:110449. doi: 10.1016/j.envres.2020.110449. Epub 2020 Nov 18.
Pharmaceuticals and personal care products (PPCPs) are recognized as a group of emerging contaminants closely related to anthropogenic activities, which capture increasing attention worldwide. To evaluate the anthropogenic disturbances on PPCP distribution and sources, this study investigated the distribution and sources of 50 PPCPs along the 2300 km long Jinsha River and revealed different anthropogenic disturbances on PPCPs. Results showed that 40 out of the 50 PPCPs were ubiquitously detected among these river water samples, with the concentrations varied from less than 1 ng/L to more than 500 ng/L. Although most PPCPs concentrations were much lower in the Jinsha River than in highly developed rivers, the prevalence of PPCPs suggested the widespread use and improper disposal of PPCPs in the Jinsha River. The risk assessment also revealed that some PPCPs posed risks to aquatic organisms in the Jinsha River. Anthropogenic activities including human habitation and dam construction had different influence on PPCPs. PPCP distribution varied significantly across the "Hu Huanyong line", indicating human habitation significantly influenced PPCP distribution. Dam construction was insignificant in altering PPCP distribution throughout the Jinsha River. Moreover, the land use index indicated degradation level of multiple lands related to anthropogenic activities and represented the major sources of PPCPs in the Jinsha River. Most PPCPs were correlated with anthropogenic lands, for example, antibiotics, analgesics, and endocrine disrupting chemicals mainly originated from artificial surfaces, whereas other PPCPs mainly originated from cultivated lands. Together, this study indicates the disturbances of multiple anthropogenic activities on PPCP distribution and sources along the Jinsha River, which contributes to PPCP management in rural areas.
药品和个人护理产品（PPCPs）被认为是与人为活动密切相关的一类新兴污染物，在全球范围内受到越来越多的关注。为了评估人为活动对PPCPs分布和来源的干扰，本研究调查了长达2300公里的金沙江沿线50种PPCPs的分布和来源，并揭示了对PPCPs不同的人为干扰。结果表明，在这些河水样本中普遍检测到50种PPCPs中的40种，其浓度从小于1纳克/升到超过500纳克/升不等。尽管金沙江中的大多数PPCPs浓度远低于高度发达地区的河流，但PPCPs的普遍存在表明其在金沙江流域被广泛使用且处置不当。风险评估还表明，一些PPCPs对金沙江中的水生生物构成风险。包括人类居住和大坝建设在内的人为活动对PPCPs有不同的影响。PPCPs的分布在“胡焕庸线”两侧差异显著，表明人类居住对PPCPs分布有显著影响。大坝建设对整个金沙江流域PPCPs分布的改变不显著。此外，土地利用指数表明了与人为活动相关的多种土地的退化程度，并代表了金沙江流域PPCPs的主要来源。大多数PPCPs与人为土地相关，例如，抗生素、镇痛药和内分泌干扰化学物质主要源自人工表面，而其他PPCPs主要源自耕地。总之，本研究表明了多种人为活动对金沙江沿线PPCPs分布和来源的干扰，这有助于农村地区的PPCPs管理。
