An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Environmental Chemistry Methods (ECM) Index - N

Analyte(s) by Pesticide ECM MRID Matrix Method Date
Naled 40494101 Soil 1/1/88
Naled 40494101 Water 1/1/88
Naled & Dichlorvos 48802301 Water 4/5/12
Napropamide 41575304 Soil 2/1/89
Napropamide 45074202 Soil 2/3/00
Napropamide 45074201 Water 2/3/00
Naptalam 40069101 Soil 1/1/87
Niclosamide 49808201 Water/ Sediment 2/25/13
Nicosulfuron & Degradates 43023102 Soil 4/19/90
Nicosulfuron & Degradates 48790912 Soil 3/16/12
Nicosulfuron & Degradates 48790911 Water 3/16/12
Nicosulfuron 43023103 Water 9/11/91
Nicosulfuron 43601701 Soil/Water 3/9/95
Nitrapyrin & Degradates 49567304 Soil 1/6/15
Nitrapyrin & Degradate 6-CPA 49567302 Water 1/17/15
Norflurazon 40766701 Soil/Water 11/1/86
Novaluron & Degradates CPU and CLA 50610215 Water 5/22/18
Novaluron & Degradates CPU and CLA 50610216 Soil 5/21/18

DISCLAIMER

EPA makes no claim of validity by posting these methods, but recognizes that the methods may be of some utility to state, tribal, and local authorities. In addition, not all methods listed are independently validated.

Top of Page