Preparation for an EPA stack test is crucial in the process of passing that test. While most of this seems common sense, it’s easy to overlook something and discover too late that you’re on the road ...

An environmental group is suing the Environmental Protection Agency (EPA) over ship stack emissions. Calling large ships "the dirtiest transportation source" the environmental organization Bluewater ...

The Environmental Protection Agency’s emission factor resource, AP-42, is not your only option for developing particulate matter (PM) emission rates. Results of a prominent PM emissions measurement ...

This story was originally produced by the New Hampshire Bulletin, an independent local newsroom that allows NHPR and other outlets to republish its reporting. It was a Monday in February with a low of ...

This is an online supplement to the feature story “The Need for Alternate PM2.5 Emission Factors for Gas-Fired Combustion Units” in the July 2015 issue of POWER. The history of in-stack PM measurement ...