PM2.5 definition
PM2.5 means particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers as measured by a reference method based on 40 CFR Part 50 Appendix L and designated in accordance with 40 CFR Part 53 or by an equivalent method designated in accordance with 40 CFR Part 53.
PM2.5 means particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers as measured by an EPA reference or equivalent method.
Examples of PM2.5 in a sentence
The term “PM2.5 Air Quality” means fine particulate matter (PM2.5) that is an air pollutant, which is a concern for people's health when levels in air are high.
More Definitions of PM2.5
PM2.5 means particles with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers.
PM2.5 means particulate matter with an aerodynamic diameter less than or equal to a nominal two and one-half (2.5) micrometers as measured by a reference method based on Appendix L of 40 C.F.R. Part 50 as of the effective date of the federal final rule published by EPA in the Federal Register on October 17, 2006 (71 FR 61226), or by an approved regional method designated in accordance with Appendix C of 40 C.F.R. Part 53.
PM2.5 means particulate matter with an aerodynamic diameter less than or equal to a nominal two and one-half (2.5) micrometers.
PM2.5 means particulate matter which passes through a size-selective inlet as defined in the reference method for the sampling and measurement of PM2,5, EN 12341, with a 50 % efficiency cut-off at 2,5 μm aerodynamic diameter;
PM2.5 means a class of air contaminants that includes all particulate matter having an aerodynamic diameter less than or equal to a nominal 2.5 microns.
PM2.5 means particulate matter as defined in this rule with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers as measured by an EPA-approved reference method.
PM2.5 means particulate matter with an aerodynamic diameter less than or equal to a nominal two-and-a-half (2.5) micrometers as measured by a reference method based on Appendix L of 40 C.F.R. Part 50 and designated in accordance with 40