{"id":7412,"date":"2024-03-08T11:27:51","date_gmt":"2024-03-08T17:27:51","guid":{"rendered":"https:\/\/www.iowawatercenter.org\/?post_type=portfolio&#038;p=7412"},"modified":"2024-03-08T11:27:51","modified_gmt":"2024-03-08T17:27:51","slug":"probing-groundwater-surface-water-interactions-as-a-driver-of-complex-mixture-evolution-in-an-effluent-impacted-stream-in-iowa","status":"publish","type":"portfolio","link":"https:\/\/www.iowawatercenter.org\/portfolio\/probing-groundwater-surface-water-interactions-as-a-driver-of-complex-mixture-evolution-in-an-effluent-impacted-stream-in-iowa\/","title":{"rendered":"Probing Groundwater-Surface Water Interactions as a Driver of Complex Mixture Evolution in an Effluent-Impacted Stream in Iowa"},"content":{"rendered":"<p>Climate change and urbanization are increasing the influence of municipal wastewater effluent on<br \/>\nreceiving waters, making wastewater effluent-dominated streams common worldwide, including<br \/>\nin temperate regions. This phenomenon increases loading of contaminants of emerging concern<br \/>\n(CECs) including pharmaceuticals, personal care products, pesticides, and industrial chemicals<br \/>\nfrom wastewater treatment plants (WWTPs) to drinking water supplies (i.e., de facto reuse) and<br \/>\necological systems. Treated effluent from WWTPs releases CEC mixtures that vary<br \/>\nspatiotemporally, which generate complex exposure conditions for biota and potential for<br \/>\ndeleterious interactive effects (e.g., drug-drug interactions). When individual CECs present in<br \/>\nmixtures are removed from the aqueous phase via sorption or degrade from the stream at different<br \/>\nrates (i.e., differential attenuation), exposure conditions for biota change. Attenuation rates of<br \/>\nCECs we measured in the field are much greater than those in batch degradation tests\u2014suggesting<br \/>\nother relevant stream processes. Currently, we do not fully understand the role of groundwater-<br \/>\nsurface water exchange on complex mixture evolution. There is a critical need to evaluate the role<br \/>\nof groundwater-surface water exchange as a driver of complex mixture evolution using next-<br \/>\ngeneration high-resolution non-target analytical approaches to quantify CEC spatiotemporal<br \/>\ndynamics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Climate change and urbanization are increasing the influence of municipal wastewater effluent on receiving waters, making wastewater effluent-dominated streams common worldwide, including in temperate regions. This phenomenon increases loading of [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","portfolio_category":[10],"portfolio_tag":[],"class_list":["post-7412","portfolio","type-portfolio","status-publish","hentry","portfolio_category-statewide"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Probing Groundwater-Surface Water Interactions as a Driver of Complex Mixture Evolution in an Effluent-Impacted Stream in Iowa - Iowa Water Center<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.iowawatercenter.org\/portfolio\/probing-groundwater-surface-water-interactions-as-a-driver-of-complex-mixture-evolution-in-an-effluent-impacted-stream-in-iowa\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Probing Groundwater-Surface Water Interactions as a Driver of Complex Mixture Evolution in an Effluent-Impacted Stream in Iowa - Iowa Water Center\" \/>\n<meta property=\"og:description\" content=\"Climate change and urbanization are increasing the influence of municipal wastewater effluent on receiving waters, making wastewater effluent-dominated streams common worldwide, including in temperate regions. 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