Particulate Matter 2.5


The U.S. Environmental Protection Agency provides information on the particulate matter concentration for Allegheny County that have a diameter greater or equal to 2.5 mm. The data is based on a combination of 2012 model and monitor data reported by the U.S. Environmental Protection Agency’s Office of Air and Radiation. The data represents the mean PM 2.5 measurement in micrograms per cubic meter for each census tract in Allegheny County. This data was obtained from the U.S. Department of Environmental Protection’s Environmental Justice Screen tool.

What's Included in the Data:

Publicly Available

Where to Find the Data:

Things to Know:

Particulate Matter (PM) affects more people than any other pollutant. The major components of PM are sulfate, nitrates, ammonia, sodium chloride, black carbon, mineral dust and water. It consists of a complex mixture of solid and liquid particles of organic and inorganic substances suspended in the air. The most health-damaging particles are those with a diameter of 10 microns or less, (≤ PM10), which can penetrate and lodge deep inside the lungs. Chronic exposure to particles contributes to the risk of developing cardiovascular and respiratory diseases, as well as of lung cancer.