National Water-Quality Assessment (NAWQA) Project
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U.S. Geological Survey Circular 1291
Appendix 8. Methods and approach for NAWQA pesticide data analysis
Appendix 8A. NAWQA methods for pesticides in water from streams
Appendix 8B. NAWQA methods for pesticides in ground water
Appendix 8C. NAWQA methods for pesticides in bed sediment and whole fish from streams