Useful conversions and formulas for air dispersion modeling

<p>Various governmental agencies involved with <a href="/facts/United_States_Environmental_Protection_Agency/ghI985SI">environmental protection</a> and with <a href="/facts/Occupational_safety_and_health/ko1IeS92">occupational safety and health</a> have promulgated regulations limiting the allowable <a href="/facts/Concentration/wqBmz5od">concentrations</a> of gaseous <a href="/facts/Pollutant/4f9kmFzq">pollutants</a> in the ambient air or in emissions to the ambient air. Such regulations involve a number of different expressions of concentration.  Some express the concentrations as <a href="/facts/Parts_per_notation/PozRuoLM">ppmv</a> and some express the concentrations as mg/m3, while others require adjusting or correcting the concentrations to reference conditions of moisture content, oxygen content or carbon dioxide content. This article presents a set of useful conversions and formulas for <a href="/facts/Atmospheric_dispersion_modeling/dCX1tDCy">air dispersion modeling</a> of atmospheric pollutants and for complying with the various regulations as to how to express the concentrations obtained by such modeling.
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Useful conversions and formulas for air dispersion modeling open-in-new

Useful conversions and formulas for air dispersion modeling