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. 2022 Dec 23;42(2):340–366. doi: 10.1002/etc.5491

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Published 2022. This article is a U.S. Government work and is in the public domain in the USA. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Chemical detections and exposure activity ratios (EARs) and/or toxicity quotients (TQs) for pesticides and pesticide transformation products measured in passive samplers collected from 15 Great Lakes tributaries, June–July 2016. Symbol size represents the number of chemicals detected per site and color represents the number of chemicals exceeding an EAR threshold of 10^–3 or a TQ threshold of 0.1. Watershed fill color represents the percentage area classified as agriculture and urban.