Environmental Chemistry Methods (ECM) Index - O
| Analyte(s) by Pesticide | ECM MRID | Matrix | Method Date |
|---|---|---|---|
| Orthosulfamuron & Degradates | 50318401 | Soil and Sediment | 3/23/16 |
| Orthosulfamuron & Degradates | 50318402 | Water | 3/23/16 |
| 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 |
| Oxyfluorfen | 50488803 | Water | 1/8/18 |
| Oxyfluorfen & Isomers | 50488801 | Soil | 1/5/18 |
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.