epa air dispersion model News
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AERMOD View - Counting Concentration Exceedances
When conducting an air dispersion modeling analysis, modelers may want to know not just what the value of the maximum concentration is but also how frequently concentrations exceed some upper limit or threshold. The U.S. EPA AERMOD air dispersion model comes with an option to extract these exceedances: the Threshold Violation File or MAXIFILE. Lakes Software’s AERMOD View application goes a ...
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Air Pollutant Emission-Rate Software for Industrial Sources is Now Available
The need for accurate methods of quantifying industrial-source emission rates of methane and other greenhouse gases (GHGs), as well as other air pollutants, has never been greater, both domestically and abroad. Today, Minnich and Scotto, Inc. (www.msiair.net) announces the availability of e-Calc© – an emissions-calculation software package to yield air pollutant emission rates from a ...
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EPA Establishes New 1-hour Standard for Sulfur Dioxide
On June 2, 2010 the U.S. EPA established a new 1-hour primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2). The new 1-hour standard was set at the level of 75 parts per billion (ppb) calculated as the three-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations. With the establishment of the new 1-hour SO2 ...
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