An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Environmental Chemistry Methods (ECM) Index - O

Analyte(s) by Pesticide ECM MRID Matrix Method Date
Oxadiazon 41767401 Soil 8/21/89
Oxamyl & Oxime Degradate 47865901 Soil 9/3/09
Oxamyl & Oxime Degradate 45591601 Water 6/17/99
Oxathiapiprolin & Four Degradates 49011152 Soil 11/9/10
Oxathiapiprolin & Two Degradates 49011156 Soil 11/1/10
Oxathiapiprolin & Six Degradates 49011157 Water 2/25/11
Oxathiapiprolin 49011160 Water 2/14/12
Oxydemeton-methyl 41430202 Soil 5/1/89

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