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Discrete Data Reports

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. Monitoring data for discrete-method monitors are available below.

2017 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 2017 may undergo further QA/QC analyses before it is finalized by May 1, 2018.

Quarter
 
PDF Summary
 
Jan - Mar
Apr - Jun
Jul - Sep
Lead
PM2.5
Oct - Dec
Lead
PM2.5

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, PM10 and PM2.5 data.

Year
 
PDF Summary
 
2017
Lead
 
PM2.5
2016