U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling -Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA.
Institute of Hydrobiology, National Academy of Science, 12 Geroyiv Stalingrada Prospect, Kyiv, Ukraine.
Mar Pollut Bull. 2020 Jun;155:111153. doi: 10.1016/j.marpolbul.2020.111153. Epub 2020 May 8.
Kyiv is Ukraine's capital and largest city. Home to 3 million people, this area has a rich history of agriculture and industry. The Dnieper River is Ukraine's largest river and it passes through the center of Kyiv. Little information on emerging and legacy compounds or their toxicity in the Dnieper River exists. For this investigation, water was sampled for PAHs, PCBs, metals and emerging contaminants including pharmaceuticals and personal care products. The effects of surface waters in the Dnieper were evaluated using the Ames, chronic and acute daphnia, and a ciliate (Colpoda stennii) assays. Concentrations of legacy and emerging contaminants were found in seven stations near the municipal water treatment plant (MWTP) and receiving waters. The MWTP appeared to remove some of the emerging contaminants, however the legacy compounds (PCBs and PAHs) were not affected by the MWTP and appeared to be more wide-spread indicating a number of sources to the Dnieper River. Acute and chronic toxicity were associated with the influent and effluent of the MWTP, however mutagenicity was noted in surface waters throughout the Dnieper River including upstream of the MWTP. This study provides the first snapshot of possible human health and ecological risks associated with surface waters of the Dnieper. More research on seasonal changes and sources of toxicity, mutagenicity and contaminants would aid in completing a more comprehensive risk assessment of surface waters of the Dnieper River.
基辅是乌克兰的首都和最大城市。这个拥有 300 万人口的地区拥有丰富的农业和工业历史。第聂伯河是乌克兰最大的河流，流经基辅市中心。关于第聂伯河中新兴和遗留化合物及其毒性的信息很少。在这项调查中，水样中采集了多环芳烃、多氯联苯、金属和新兴污染物，包括药品和个人护理产品。使用艾姆斯试验、慢性和急性水蚤以及纤毛虫（结肠鞘虫）试验评估了第聂伯河地表水的影响。在距离市自来水处理厂（MWTP）和受纳水域较近的七个站点发现了遗留和新兴污染物的浓度。MWTP 似乎去除了一些新兴污染物，但遗留化合物（多氯联苯和多环芳烃）不受 MWTP 的影响，似乎分布更广泛，这表明第聂伯河有多个污染源。急性和慢性毒性与 MWTP 的进水和出水有关，但在 MWTP 上游的整个第聂伯河地表水包括地表水都发现了致突变性。本研究首次提供了与第聂伯河地表水有关的人类健康和生态风险的可能情况。更多关于季节性变化和毒性、致突变性和污染物来源的研究将有助于完成对第聂伯河地表水的更全面风险评估。
