Occurrence of emerging contaminants in highly anthropogenically influenced river Yamuna in India
Occurrence of emerging contaminants in highly anthropogenically influenced river Yamuna in India
复制标题
DOI：
10.1016/j.scitotenv.2021.146741
复制
发表时间：
2021-04-08
影响因子：
9.8
通讯作者：
Vellanki, Bhanu Prakash
中科院分区：
文献类型：
--
作者：
Biswas, Pinakshi;Vellanki, Bhanu Prakash
亚穆纳河是印度北方的主要生命线之一。该研究量化了亚穆纳河中的16种目标化合物，包括药物，个人护理产品和激素。地表水样品收集了13个地点跨越575公里沿着，并从其两个支流，欣东河和欣东运河。在夏季和后季风季节在13个站点的目标化合物的发生时空变化进行了调查。所有样本中都发现了咖啡因、雌酮、吉非罗齐、磺胺甲恶唑、睾酮和甲氧苄啶，这表明它们在环境中大量使用和/或持久存在。目标化合物的平均浓度范围为25.5 - 2187.5 ng/L。与夏季相比，季风过后的浓度较高。夏季采样期间检测到的最高浓度是甲氧苄啶（8807.6纳克/升），其次是季风后采样期间检测到的咖啡因（6489.9纳克/升）和吉非罗齐（2991纳克/升）。夏季采样期间检测到的最低浓度是雌酮（10.7纳克/升）。从集水区的径流是在季风后的化合物浓度增加的贡献因素之一。在夏季，河床变干，有利于化合物吸附到河床沉积物上。Okhla水坝（穿过德里的排水沟积水）、亚穆纳与Shahadara排水沟汇合处（工业和家禽聚集区以及加齐布尔倾倒场）和阿格拉市（工业聚集区）这三个采样地点是目标化合物总浓度的热点。该研究还报告了马图拉和阿格拉两个污水处理厂的成品饮用水中存在PPCP和激素。(C)2021爱思唯尔有限公司版权所有。
River Yamuna is one of the major lifelines of Northern India. The study quantified 16 target compounds including pharmaceuticals, personal care products, and hormones in the Yamuna river. Surface water samples were collected from 13 locations spanning 575 km along the river, and from two of its tributaries, Hindon river and Hindon canal. Spatiotemporal variations in the occurrence of the target compounds at the 13 sites during summer and post-monsoon season were investigated. Caffeine, estrone, gemfibrozil, sulfamethoxazole, testosterone and trimethoprim were found in all the samples, indicating substantial usage and/or persistence in the environment. The mean concentration of the target compounds ranged from 25.5 to 2187.5 ng/L. Higher concentrations were detected during the post monsoon, compared to the summer season. The highest concentration detected was of trimethoprim (8807.6 ng/L) during summer sampling, followed by caffeine (6489.9 ng/L) and gemfibrozil (2991 ng/L), during the post-monsoon sampling. The lowest concentration detected was of estrone (10.7 ng/L), during the summer sampling. The runoff from the catchment areas is one of the contributing factors for the increased concentration of the compounds during post monsoon. During summer, the river bed goes dry, facilitating the adsorption of the compounds onto the river bed sediments. The three sampling locations Okhla barrage (ponding of water from drains traversing Delhi), confluence of Yamuna with Shahadara drain (industrial and poultry cluster, and Ghazipur dumping yard) and Agra city (industrial clusters) were the hotspots in terms of total concentration of the target compounds. The study also reported the presence of PPCPs and hormones in the finished drinking water of two DWTPs at Mathura and Agra. (C) 2021 Elsevier B.V. All rights reserved.