Laboratory results for anthropogenic bioactive chemicals in the Illinois Waterway upstream and downstream of the bigheaded carp population front (2015; ver. 2.0, March 2020)

Two non-native bigheaded carp species have invaded the Illinois River system and are a potential threat to the Great Lakes ecosystem. Discharges from industry, wastewater treatment plants, and urban and agricultural runoff, may be a factor contributing to the stalling of the upstream movement of the bigheaded carp population front near Illinois Waterway mile 278. In 2015, the U.S. Geological Survey collected 4 sets of water samples under a range of seasonal and hydrologic conditions from 3 locations upstream and 4 locations downstream from river mile 278 using a Lagrangian-style sampling strategy. Water samples were analyzed for over 639 constituents of which 280 were detected at least once, including many anthropogenic bioactive chemicals (ABCs) such as pesticides, pharmaceuticals, hormones, and volatile organic compounds (VOCs). Many ABCs were detected upstream of river mile 278, and some persisted or were introduced downstream. For example, in June 2015, at river mile 286, sampling detected 43 of 105 pharmaceuticals (total concentration and total load of 9,251 nanograms per liter (ng/L) and 66.2 kilograms per day (kg/d), respectively); 46 of 251 pesticides (total concentration and load of 5,956 ng/L and 84.5 kg/d); 9 of 55 wastewater indicator chemicals (total concentration and load of 4,092 ng/L and 58.0 kg/d); and 10 of 116 VOCs (total concentration and load of 9,626 ng/L and 137 kg/d). By the time that water moved downstream to river mile 243, sampling detected 13 pharmaceuticals (total concentration and load of 417 ng/L and 27.8 kg/d); 51 pesticides (total concentration and load of 11,207 ng/L and 1,687 kg/d); 5 wastewater indicator chemicals (total concentration and load of 309 ng/L and 46.5 kg/d); and 2 VOCs (total concentration and load of 340 ng/L and 51 kg/d). This set of tables is a revised version of the original tables. There are 11 data tables provided in this data release: Carboxylic_Acids_Data_Revised.csv, Discharge_Field_Ions_Data_Revised.csv, Disinfection_By_Products_Data_Revised.csv, Hormones_Data_Revised.csv, Metals_Data_Revised.csv, Nutrients_Data_Revised.csv, Other_Wastewater_Indicators_Data_Revised.csv, Pesticides_Data_Revised.csv, Pharmaceuticals_Data_Revised.csv, Site_Information_Revised.csv, and Volatile_Organic_Compounds_Data_Revised.csv.

两种非本土大头鲤（bigheaded carp）物种已入侵伊利诺伊河水系，对五大湖生态系统构成潜在威胁。工业排放、污水处理厂尾水以及城市与农业面源径流，可能是导致伊利诺伊水道278英里处附近大头鲤种群上游移动前锋停滞的诱因之一。2015年，美国地质调查局（U.S. Geological Survey）采用拉格朗日式采样策略（Lagrangian-style sampling strategy），在278英里河段的上游3个点位与下游4个点位，于不同季节与水文条件下采集了4组水样。研究人员对采集的水样开展了639余种成分的分析，其中280种成分至少被检出1次，涵盖大量人为源生物活性化学物质（anthropogenic bioactive chemicals, ABCs），包括农药、药物、激素及挥发性有机化合物（volatile organic compounds, VOCs）等。278英里河段上游已检出多种人为源生物活性化学物质，其中部分物质可随水流迁移至下游并持续留存。例如2015年6月，在286英里河段的采样中，105种药物中共检出43种（总浓度与总负荷分别为9251纳克每升（ng/L）与66.2千克每日（kg/d））；251种农药中共检出46种（总浓度与总负荷分别为5956 ng/L与84.5 kg/d）；55种废水指示化学品中共检出9种（总浓度与总负荷分别为4092 ng/L与58.0 kg/d）；116种挥发性有机化合物中共检出10种（总浓度与总负荷分别为9626 ng/L与137 kg/d）。当水流迁移至243英里河段下游时，采样检出13种药物（总浓度与总负荷分别为417 ng/L与27.8 kg/d）；51种农药（总浓度与总负荷分别为11207 ng/L与1687 kg/d）；5种废水指示化学品（总浓度与总负荷分别为309 ng/L与46.5 kg/d）；以及2种挥发性有机化合物（总浓度与总负荷分别为340 ng/L与51 kg/d）。本数据集附带的表格为原始表格的修订版本。本次数据发布共提供11张数据表，文件名分别为：Carboxylic_Acids_Data_Revised.csv、Discharge_Field_Ions_Data_Revised.csv、Disinfection_By_Products_Data_Revised.csv、Hormones_Data_Revised.csv、Metals_Data_Revised.csv、Nutrients_Data_Revised.csv、Other_Wastewater_Indicators_Data_Revised.csv、Pesticides_Data_Revised.csv、Pharmaceuticals_Data_Revised.csv、Site_Information_Revised.csv及Volatile_Organic_Compounds_Data_Revised.csv。