Geospatial and co-occurrence analysis of antibiotics, hormones, and UV filters in the Chesapeake Bay (USA) to confirm inputs from wastewater treatment plants, septic systems, and animal feeding operations
Geospatial and co-occurrence analysis of antibiotics, hormones, and UV filters in the Chesapeake Bay (USA) to confirm inputs from wastewater treatment plants, septic systems, and animal feeding operations
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对切萨皮克湾（美国）的抗生素、激素和紫外线过滤器进行地理空间和共现分析，以确认废水处理厂、化粪池系统和动物饲养作业的输入
DOI：
10.1016/j.jhazmat.2023.132405
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发表时间：
2023
影响因子：
13.6
通讯作者：
Blaney, Lee
中科院分区：
文献类型：
--
作者：
Hain, Ethan;He, Ke;Batista-Andrade, Jahir A.;Feerick, Anna;Tarnowski, Mitchell;Timm, Anne;Blaney, Lee
先前的研究报告了切萨皮克湾（美国）有限地区的新兴关注污染物（CEC），但没有进行全面的努力。在这项工作中，43种抗生素，9种激素，11种紫外线过滤剂和三氯蔗糖，在匹配的水，沉积物和牡蛎样品从58个站点进行了测量。最高的三氯蔗糖浓度为3051纳克L-1，在一个子流域，每天443万升的废水排放量（MLD）和4385化粪池系统。虽然抗生素的发生率普遍较低，位于人口较少地区的子流域，102纳克L-1环丙沙星下游检测到0.58 MLD废水和10动物饲养业务。在水（2%）或牡蛎（37%）中没有定期检测到激素，但沉积物中的高检测频率（74%）与化粪池系统有关。牡蛎中普遍检测到紫外线过滤剂，并表现出最高的浓度（423纳克克-1）。牡蛎相氧苯酮和水相三氯蔗糖浓度显着相关的废水和化粪池系统，分别。毒性结果预测胡莫柳酯和水杨酸辛酯在整个海湾，并注意到切斯特河的抗菌素耐药性问题。地理空间和共现关系构成至关重要的进展，了解CEC发生在切萨皮克湾和其他地方。
Previous studies have reported select contaminants of emerging concern (CECs) in limited areas of the Chesapeake Bay (USA), but no comprehensive efforts have been conducted. In this work, 43 antibiotics, 9 hormones, 11 UV filters, and sucralose, were measured in matched water, sediment, and oyster samples from 58 sites. The highest sucralose concentration was 3051 ng L-1in a subwatershed with 4.43 million liters of wastewater effluent per day (MLD) and 4385 septic systems. Although antibiotic occurrence was generally low in subwatersheds located in less populated areas, 102 ng L-1ciprofloxacin was detected downstream of 0.58 MLD wastewater effluent and 10 animal feeding operations. Hormones were not regularly detected in water (2%) or oysters (37%), but the high detection frequencies in sediment (74%) were associated with septic systems. UV filters were ubiquitously detected in oysters, and octisalate exhibited the highest concentration (423 ng g-1). Oyster-phase oxybenzone and aqueous-phase sucralose concentrations were significantly correlated to wastewater effluent and septic systems, respectively. Toxicity outcomes were predicted for homosalate and octisalate throughout the Bay, and antimicrobial resistance concerns were noted for the Chester River. The geospatial and co-occurrence relationships constitute crucial advances to understanding CEC occurrence in the Chesapeake Bay and elsewhere.