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Bureau of Air Quality

As part of Pennsylvania's initiative to provide wider public access to electronic media, this service offers the most comprehensive online resource for air quality information in the Commonwealth. We welcome the opportunity to develop and extend this service as recommended by users.
Krish Ramamurthy, Director

Proposals Open for Comment

None Currently Open

Data Requirements Rule — List of SO2 Sources Identified for Air Quality Characterizations

On January 15, the department submitted a list to the USEPA of large Sulfur Dioxide (SO2) emitting sources in the Commonwealth which will undergo "air quality characterization" as required under the final Data Requirements Rule for the 2010 1-Hour SO2 Primary National Ambient Air Quality Standard.

Recent Department Comments to EPA Proposals:

Baseline Tunkhannock Crystalline Silica Monitoring project

In response to requests for baseline ambient air monitoring in Tunkhannock Township, Wyoming County, the Department performed a short-term background air monitoring project to measure ambient crystalline silica concentrations. Crystalline silica was measured and reported as particulate matter, 4 microns (PM4). The sampling project also involved collecting baseline fine particulate matter including PM2.5, PM10 and PM4 ambient crystalline silica samples. An analysis of the results of the sampling determined the baseline levels of ambient crystalline silica concentrations in the monitoring area.

Grant Availability

Pennsylvania State Clean Diesel Grant Program:

The PA State Clean Diesel Grant Program is currently closed. Information for the FY2017 funding will be posted here as it becomes available.


DEP has awarded $122,920 to the Berks County Intermediate Unit (BCIU) under Round 1 of the FY2014-2016 PA State Clean Diesel Grant Program. BCIU, located in Reading, PA, will use the funds to replace six older diesel school buses with six new diesel school buses. These replacements will result in improved air quality in the areas of operation and reduce exposure to diesel emissions for the operators and occupants of these buses.

Find the Information you Want

Look for these links in the menu to your right, or visit the Air Quality Functions page to find out what we do and who to talk to:

Advisory Groups — The Air Quality Technical Advisory Committee, Small Business Compliance Advisory Committee, and the Climate Change Advisory Committee meeting times and materials.

Automobiles — The Clean Vehicles program, emissions inspection, diesel idling and retrofits, and general automobile emissions information.

Business Topics — Asbestos, Continuous Emission Monitoring, Emission Inventory, Small Business Assistance, and Source Testing information.

General Information — Information on the Bureau of Air Quality, other links, Open Burning, and ragweed pollen.

Monitoring Topics — Acid Rain and Mercury in rain, the Air Quality Index, and ambient monitoring of pollutants in the air.

Permits — Plan Approvals, Operating Permits, General Permits, Requests for Determination, Emission Reduction Credits, and the control of carbon emissions from power plants.

Pollutants — The different types of pollutants, their standards in ambient air and as emissions, the amounts being emitted from sources and the transport of pollutants between regions.

Regulations and Clean Air Plans — Revisions to the State Implementation Plan, attainment of standards around the state, existing and proposed regulations, and Control Techniques Guidelines.