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Water Quality

Agricultural production releases residuals that may degrade the quality of water resources and impose costs on water users. EPA identifies agriculture as a major source of water impairments. ERS assesses agriculture's impacts on water, and how conservation and environmental policies that affect farmers' management decisions can change water quality.


Spotlights

Economics of Water Quality Protection from Nonpoint Sources: Theory and Practice—Agriculture is a major source of several nonpoint-source pollutants, including nutrients, sediment, pesticides, and salts. This report outlines the economic characteristics of five policy instruments that can be used to reduce agricultural nonpoint-source pollution.

Agricultural Resources and Environmental Indicators: Water Quality Impacts of Agriculture—Understanding the links between agriculture and water quality helps policymakers to find ways to protect water quality from agricultural pollution. This chapter reviews what is known about the links between agriculture and water quality, and the benefits from improving water quality.

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