Abstract：
Persistent, mobile, and toxic (PMT) substances have recently garnered increased attention by environmental researchers, the water sector and environmental protection agencies. In this study, acute and chronic species sensitivity distributions (SSDs) were retrieved from literature data for previously quantified contaminants of emerging concern (CECs) in Swedish surface waters (n = 92) and risk quotients (RQ) were calculated. To better understand the characteristics of the detected CECs in non-urban lake sites (n = 71), these compounds were checked against established criteria for potentially toxic PMs (PM(T)s) and occurrence in the aquatic environment, respectively. For the CECs with missing SSDs (n = 15 [acute], n = 41 [chronic]), ecotoxicity data were extracted for eight taxonomic groups, and if data were sufficient (n ≥ 3), SSDs were derived. The retrieved and newly developed SSDs were then used in an environmental hazard assessment (EHA) in the investigated Swedish rivers and lakes. In the rivers, 8 CECs had RQ> 1 in at least one location, and 20 CECs posed a moderate risk (0.01 < RQ < 1). In total, 21 of the 71 detected substances had already been identified as PM(T)/vPvM substances. Our study shows the importance of studying field data at large spatial scale to reveal potential environmental hazards far from source areas.
摘要：
持久性,mobile,和有毒（PMT）物质最近引起了环境研究人员的越来越多的关注，水务部门和环境保护机构。在这项研究中,从文献数据中检索了瑞典地表水中先前量化的新兴关注污染物(CEC)的急性和慢性物种敏感性分布(SSD)(n=92),并计算了风险商(RQ).为了更好地了解在非城市湖泊站点（n=71）中检测到的CEC的特征，这些化合物根据潜在有毒PMs(PM(T)s)和水生环境中发生的既定标准进行了检查，分别。对于缺少SSD的CEC(n=15[急性]，n=41[慢性])，提取了八个分类组的生态毒性数据，如果数据足够(n≥3)，SSD派生。然后将检索到的和新开发的SSD用于所调查的瑞典河流和湖泊的环境危害评估（EHA）。在河流中,8个CEC在至少一个位置的RQ>1，20个CEC构成中等风险(0.01
