Pharmaceuticals in two watersheds in Eastern China and their ecological risks
文献类型：期刊论文
| 作者 | Tang, Jianfeng; Sun, Jing; Wang, Wendong; Yang, Lei; Xu, Yaoyang |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2021-05-15 |
| 卷号 | 277页码:- |
| 关键词 | Pharmaceuticals Urban watershed Peri-urban watershed Population density Land use |
| ISSN号 | 0269-7491 |
| 英文摘要 | Pharmaceuticals are of increasing environmental concern due to their potential threat to aquatic ecosystems. Intensive human activities are a major factor influencing the level of pharmaceutical pollution in aquatic ecosystems. In this study, we investigated the occurrence, ecological risks of 31 pharmaceuticals and the possible influence of human activities on pharmaceutical distribution in two watersheds in the Yangtze River Delta, Eastern China. The target compounds were grouped into six categories: three non-steroidal anti-inflammatory drugs, ten antibiotics, six cardiovascular drugs, five hormones, six psychotropic drugs, and one antiparasitic. All target pharmaceuticals were detected in the surface water samples, with dexamethasone (100% of samples), tetracycline (100% of samples), and cefradine (100% of samples) being the dominant compounds (maximum concentrations of 686, 128, and 2280 ng/L, respectively). The total pharmaceutical concentrations were significantly higher in the urban watershed (711-2790 ng/L, mean = 1150 ng/L) than in the peri-urbanwatershed (467-1525 ng/L, mean = 863 ng/L) (p < 0.05). Distinct variation in the total pharmaceutical concentration also occurred between the dry season (507-2790 ng/L, mean = 1100 ng/L) and the wet season (467-1525 ng/L, mean = 943 ng/L). Ecological risk assessment showed that in the two watersheds, benzylpenicillin potassium, tetracycline hydrochloride, chlormadinone, ampicillin, cefotaxime acid, atorvastatin, sertraline hydrochloride, and oxazepam posed a medium potential risk (0.1 < risk quotient < 1), while norethisterone posed a high potential risk (risk quotient > 1). Redundancy analysis revealed that the concentrations of pharmaceuticals in various categories were positively correlated with land-use type (urban and agricultural land-use percentages), population density, and distance from town in both watersheds. Urban and agricultural activities were likely the main factors influencing the concentrations and composition of pharmaceuticals in these aquatic environments. Positive correlations were also found between total pharmaceutical concentrations and population density in both watersheds, suggesting a significant contribution of human disturbance to pharmaceutical pollution. The results provide useful information for pharmaceutical pollution control, ecological risk assessment, and sustainable water management at the watershed scale. (C) 2021 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45532]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, 1799 Jimei Rd, Xiamen 361021, Peoples R China 3.Chinese Acad Sci, Zhejiang Key Lab Urban Environm Proc & Pollut Con, Ningbo Urban Environm Observat & Res Stn, Ningbo 315800, Peoples R Ch 4.Chengdu Univ Informat Technol, Coll Resources & Environm, Chengdu 610225, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Jianfeng,Sun, Jing,Wang, Wendong,et al. Pharmaceuticals in two watersheds in Eastern China and their ecological risks[J]. ENVIRONMENTAL POLLUTION,2021,277:-. |
| APA | Tang, Jianfeng,Sun, Jing,Wang, Wendong,Yang, Lei,&Xu, Yaoyang.(2021).Pharmaceuticals in two watersheds in Eastern China and their ecological risks.ENVIRONMENTAL POLLUTION,277,-. |
| MLA | Tang, Jianfeng,et al."Pharmaceuticals in two watersheds in Eastern China and their ecological risks".ENVIRONMENTAL POLLUTION 277(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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