Essay on Salt Lake City Inversion and its Effects
Pollutant Standard (ppm) Approximate Equivalent Concentration (μg/m3)
Carbon monoxide 8-hr average 1-hr average
Nitrogen Dioxide Annual Average
8-hr average 1-hr average
PM10 annual average PM10 24-hr average PM2.5 annual average PM2.5 24-hr average
Sulfur dioxide Annual average 24-hr average 3-hr average 0.03
*PM10 refers to all airborne particles 10 μm in diameter or less. PM2.5 refers to particles 2.5 μm in diameter or less.
-The unit of ppm is not applicable to particulates. tPM2.5 standards are likely to be revised after 2011.
Source: U.S. Environmental Protection Agency.
When we are discussing PM or particulate matter we are referring to fine particulates of things such as dust, pollen, mold, metals, combustion particles and organic compounds. This PM being trapped in the atmosphere is a major concern in Salt Lake City, Utah. PM usually gets trapped after a snowstorm in the Salt Lake