U.S. EPA
The Opsis system is designated equivalent to 40 CFR.
| SO2 |
EQSA-0495-101 |
| NO2 |
EQNA-0495-102 |
| O3 |
EQOA-0495-103 |
Link to U.S. EPA >>
U.S. ETV EPA
Verification of Opsis UV DOAS AQM system for benzene,
ammonia and nitric oxide, and of Opsis SM 200 particulate
monitor for PM2.5 and PM10.
Link to U.S. ETV EPA >>