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A review of water quality responses to air temperature and precipitation changes 2; nutrients, algal blooms, sediment, pathogens

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doi: 10.1111/1752-1688.12711
Authors:Coffey, Rory; Paul, Michael J.; Stamp, Jen; Hamilton, Anna; Johnson, Thomas
Author Affiliations:Primary:
U. S. Environmental Protection Agency, Office of Research and Development, Washington, DC, United States
Tetra Tech, Center for Ecological Sciences, Research Triangle Park, NC, United States
Volume Title:Journal of the American Water Resources Association
Source:Journal of the American Water Resources Association, 55(4), p.844-868. Publisher: Wiley Interscience on behalf of American Water Resources Association, Middleburg, VA, United States. ISSN: 1093-474X
Publication Date:2019
Note:In English. 263 refs.; illus.
Summary:In this paper we review the published, scientific literature addressing the response of nutrients, sediment, pathogens, and cyanobacterial blooms to historical and potential future changes in air temperature and precipitation. The goal is to document how different attributes of water quality are sensitive to these drivers, to characterize future risk, to inform management responses, and to identify research needs to fill gaps in our understanding. Results suggest that anticipated future changes present a risk of water quality and ecosystem degradation in many United States locations. Understanding responses is, however, complicated by inherent high spatial and temporal variability, interactions with land use and water management, and dependence on uncertain changes in hydrology in response to future climate. Effects on pollutant loading in different watershed settings generally correlate with projected changes in precipitation and runoff. In all regions, increased heavy precipitation events are likely to drive more episodic pollutant loading to water bodies. The risk of algal blooms could increase due to an expanded seasonal window of warm water temperatures and the potential for episodic increases in nutrient loading. Increased air and water temperatures are also likely to affect the survival of waterborne pathogens. Responding to these challenges requires understanding of vulnerabilities, and management strategies to reduce risk. Abstract Copyright (2018), American Water Resources Association.
Subjects:Algae; Algal blooms; Atmospheric precipitation; Climate change; Critical load; Degradation; Ecosystems; Environmental management; Eutrophication; Hydrologic cycle; Hydrology; Information management; Nitrification; Nonpoint sources; Nutrients; Pathogens; Pollutants; Pollution; Risk assessment; Runoff; Sediments; Solar radiation; Uncertainty; Urbanization; Water pollution; Water quality; Water resources; United States; Bacteria; Cyanobacterial blooms
Record ID:860235-6
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom
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