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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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Pesticide and pesticide transformation product (designated with*) detections (yellow/gray) and potential activity (red/orange) based on toxicity quotients (TQs; left) and exposure activity ratios (EARs; right) from passive sampler monitoring results in 15 Great Lakes tributaries, June–July 2016. The combined length of each bar represents the number of sites where a chemical was detected above the minimum detection limit. Red, orange, and yellow show the number of sites where a chemical exceeded TQ or EAR values. Chemicals with gray bars lacked information for evaluation of TQ or EAR. Chemicals are grouped by intended use and ordered by frequency of elevated EAR values.