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of the Commonwealth of Pennsylvania

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    The Bureau of Air Quality uses "discrete" or manual method monitoring for two Criteria Pollutants - Lead and PM2.5. A discrete method is generally a "manual" method of sampling, most commonly using an air filter to trap air pollutants from ambient air for a defined, or "discrete," period of time. The filter is then removed from the collection site and analyzed in a DEP-accredited laboratory. PA DEP's monitoring strategy generally requires the installation of monitors in areas under PA DEP's jurisdiction having high population density and/or high levels of contaminants, based on EPA guidance and population information from the U.S. Office of Management and Budget (OMB). Monitoring data for discrete-method monitors are available below.

    2023 Quarterly Data

    Choose from the links below to get a report, by quarter, of the latest available 24-hour concentrations for the DEP's filter-based lead and PM2.5 data. Please note that concentration data for 2023 may undergo further QA/QC analyses before it is finalized by May 1, 2024.
    QuarterPDF Summary
    Jan–MarLeadPM2.5
    April-JuneLeadPM2.5
    July-SepLeadPM2.5
    Oct-DecLeadPM2.5

    Concentration Data By Year

    Choose from the links below to get a report, by year, of 24-hour concentrations for the DEP's filter-based lead, and PM2.5 data.
    YearPDF Summary
    2023LeadPM2.5
    2022LeadPM2.5
    2021LeadPM2.5

    Concentration Data By Year – Palmerton, PA

    Choose from the links below to get a report, by year, of 24-hour concentrations for the DEP's filter-based criteria lead data at its two monitoring sites in Palmerton, PA. The Palmerton lead monitor began operating in July 2012. The Palmerton High School lead monitor began operating in May 2020.
    YearPDF Summary
    2023Lead 
    2022Lead 
    2021Lead 
    2020Lead 
    2019Lead 
    2018Lead 
    2017Lead 
    2016Lead 
    2015Lead 
    2014Lead 
    2013Lead 
    2012Lead