The Environmental Monitoring and Assessment Program (EMAP) was developed by EPA to assess the condition of the nation’s ecological resources. EMAP is a partnership between EPA’s Office of Research and Development, Office of Water, Region 10, the States, and many others.
EMAP has 3 main components: coastal, rivers and streams, and landscapes. The objective of EMAP is to assess the ecological condition of coastal waters and rivers and streams across the United States. EMAP is designed to monitor indicators of pollution and habitat condition and seek links between human-caused stressors and ecological condition. |  | 
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