Committee to Improve the U.S. Geological Survey National Water Quality Assessment Program & Division on Earth and Life Studies 
Opportunities to Improve the U.S. Geological Survey National Water Quality Assessment Program [PDF ebook] 

الدعم

The U.S. Geological Survey (USGS) established the National Water Quality Assesment (NAWQA) program in 1985 to assess water quality conditions and trends in representative river basins and aquifers across the United States. With this report, the NRC’s Water Science and Technology Board has provided advice to USGS regarding NAWQA five separate times as the program evolved from an unfunded concept to a mature and nationallyrecognized program in 2002. This report assesses the program’s development and representative accomplishments to date and makes recommendations on opportunities to improve NAWQA as it begins its second decade of nationwide monitoring.

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لغة الإنجليزية ● شكل PDF ● صفحات 252 ● ISBN 9780309509473 ● الناشر National Academies Press ● نشرت 2002 ● للتحميل 3 مرات ● دقة EUR ● هوية شخصية 7146022 ● حماية النسخ Adobe DRM
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