期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 812, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2021.152567
关键词
Pharmaceuticals; Pesticides; Wastewater treatment plant; Risk assessment; Toxicity; Surface water
资金
- DRACE INFRAESTRUCTURAS S.A., the project Estudio de contaminantes emergentes en aguas residuales y superficiales de Madrid
- University Jaume I of Castellon, Spain [UJI-B2018-55]
- Ministry of Science, Innovation and University, Spain [RTI2018-097417-B-I00]
- Generalitat Valenciana, Spain [PROMETEO 2019/040]
The study investigated the impact of a wastewater treatment plant from Madrid on the aquatic environment, focusing on pharmaceuticals and pesticides, including their removal efficiency from the water. Results showed that the effluent from the treatment plant had an impact on the water quality of the Manzanares River, with certain pharmaceuticals posing potential risks to aquatic organisms.
The effluents from wastewater treatment plants (WWTPs) can be an important contamination source for receiving waters. In this work, a comprehensive study on the impact of a WWTP from Madrid on the aquatic environment has been performed, including a wide number of pharmaceuticals and pesticides, among them those included in the European Watch List. 24-h composite samples of influent (IWW) and effluent wastewater after secondary (EWW2) and after secondary + tertiary treatment (EWW3) were monitored along two campaigns. Average weekly concentrations in IWW and EWW2 and EWW3 allowed estimating the removal efficiency of the WWTP for pharmaceutical active substances (PhACs). In addition, the impact of EWW3 on the water quality of the Manzanares River was assessed, in terms of PhAC and pesticide concentrations, through analysis of the river water collected upstream and downstream of the discharge point. After a preliminary risk assessment, a detailed evaluation of the impact on the aquatic environment, including a toxicological study and screening of pharmaceutical metabolites, was made for the seven most relevant PhACs: sulfamethoxazole, azithromycin and clarithromycin (antibiotics), metoprolol (antihypertensive), diclofenac (anti-inflammatory/analgesic), irbesartan (antihypertensive), and the antidepressant venlafaxine. Among selected PhACs, irbesartan, clarithromycin and venlafaxine presented moderate or high risk in the river water downstream of the discharge. Albeit no acute toxicity was detected, more detailed studies should be carried out for these substances, including additional toxicological studies, to set up potential sublethal and chronic effects on aquatic organisms.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据