Address: 15797 Highway D; Bonne Terre, MO 63628
Pollutant monitored: Ozone (O3)
Pollutants monitored in the past: Nitrogen dioxide (NO2) and fine particulate matter (PM2.5)
(Submit a request for records regarding historically monitored pollutants.)
Site established: 04/01/1996
- Latitude: 37.90084°
- Longitude: -90.42388°
County: Ste. Genevieve
EPA Site No.: 29-186-0005
Bonne Terre's design value for ozone peaked at 90 parts per billion (ppb) during the 1998-2000 monitoring period. The design value fell as low as 65 parts per billion
during the 2013-2015 monitoring period, which enjoyed relatively cool summers. Preliminary data from the summer of 2016 showed two exceedances of the current standard
of 70 parts per billion, but that does not mean the area will have a design value exceeding the standard. The Missouri Department of Natural Resources will not be able to determine the 2014-2016 ozone design value until 2017. A site's design value determines whether an area is in attainment of the ozone federal standard.
Ground-level ozone is formed when pollutants emitted by cars, factories, power plants and other sources react chemically in the presence of heat and sunlight. Ozone at ground level
is a harmful air pollutant as opposed to ozone in the upper atmosphere, which protects us from ultraviolet light.
Please note that the current standard of 70 parts per billion equals 0.070 parts per million (ppm).
Ozone design values for Bonne Terre, 1996-2002