The data on this site is collected using sophisticated sampling equipment located across the state. Occasionally, hardware or software fails and provides no data or erroneous data until a technician can service it. In addition, this data has not yet been quality assured/quality controlled so some data may be incomplete or inaccurate. The final quality assured/quality controlled data can be found on EPA’s Air Quality Data website.
Pennsylvania Department of Environmental Protection
Bureau of Air Quality
Latest Hourly Data Collected on 10/24/2026 11:00:00 PM
| Site Name | 1-Hr CO (ppm) | 1-Hr SO2 (ppb) | 1-Hr Ozone (ppb) | 1-Hr PM-2.5 (ug/m3) | 1-Hr PM-10 (ug/m3) | 1-Hr NO (ppb) | 1-Hr NO2 (ppb) | 1-Hr NOX (ppb) | 1-Hr H2S (ppb) |
|---|---|---|---|---|---|---|---|---|---|
| Allentown | 2 | 14.9 | 37 | ||||||
| Altoona | 0 | 7 | 5.5 | ||||||
| Arendtsville | 0.1 | 0.2 | 31 | 3.7 | |||||
| Beaver Falls | 2 | 14.7 | 19 | 12.4 | 18.7 | 31.1 | |||
| Brighton Township | 0.2 | 26 | |||||||
| Bristol | 2 | ||||||||
| Carlisle | 14.2 | ||||||||
| Chambersburg | 0 | 7.2 | |||||||
| Charleroi | 0.4 | 16 | 9.6 | 0.5 | 8.1 | 8.7 | |||
| Chester | 10 | 14.6 | 2.2 | 15.7 | 18 | ||||
| Erie | 0.2 | 38 | 7.1 | 16 | 0.4 | 2.8 | 3.3 | ||
| Farrell | 34 | 6.6 | |||||||
| Florence | 0 | 10 | 6.3 | ||||||
| Fort McIntosh | 5 | 10.1 | |||||||
| Freemansburg | 0 | 1 | 14.5 | 10.6 | 15.6 | 26.3 | |||
| Greensburg | 8 | 4.8 | |||||||
| Harrisburg | 0 | 19.5 | |||||||
| Hershey | 1 | 19.4 | 31 | ||||||
| Holbrook | 38 | 4.7 | |||||||
| Houston | 10 | 0 | 2.1 | 2.1 | |||||
| Johnstown | 0.3 | 0.3 | 12 | 7.4 | 13 | 0 | 7.6 | 7.6 | |
| Kittanning | 8 | 6.4 | |||||||
| Kutztown | 10 | ||||||||
| Lancaster | 1 | 45.6 | 57 | ||||||
| Lancaster Downwind | 2 | 32.6 | |||||||
| Landenberg | 12.7 | 19 | 163 | ||||||
| Lebanon | 3 | 20.1 | |||||||
| Marcus Hook | 19.0 | ||||||||
| Methodist Hill | 42 | ||||||||
| Montoursville | 12 | ||||||||
| Moshannon | 29 | 6.2 | |||||||
| New Garden - Airport | 22 | 5.9 | 1.4 | ||||||
| New Milford | 7.7 | ||||||||
| Norristown | 1 | 13.1 | |||||||
| Peckville | 6 | ||||||||
| Reading Airport | 0 | 2 | 9.9 | ||||||
| Salladasburg | 10.1 | ||||||||
| Scranton | 0.5 | 0.2 | 0 | 7.4 | 19 | 10.7 | 16.4 | 27.1 | |
| State College | 0 | 5 | 11.2 | 3.3 | 10.5 | 13.9 | |||
| Strongstown | 1 | 35 | 3.8 | ||||||
| Swiftwater | 19 | 4.5 | |||||||
| Tioga County | 42 | 8.5 | 0 | 2.2 | 2.2 | ||||
| Towanda | 4 | 6.9 | 3 | 5.9 | 9.3 | ||||
| Tunkhannock | 5.2 | ||||||||
| Uniontown | 18 | 9.6 | 0.1 | 2.6 | 2.7 | ||||
| Warren - Overlook | 25 | 26 | 5.1 | ||||||
| Warren East | 0.8 | ||||||||
| York | 0.3 | 3 | 14.8 | 1.1 | 18.4 | 19.6 | |||
| York Downwind | 38 |
| Site Name | 1-Hr SWS (mph) | 1-Hr VWS (mph) | 1-Hr VWD (degs) | 1-Hr AT (degF) | 1-Hr SR (w/m2) |
|---|---|---|---|---|---|
| Allentown | 1.1 | 0.9 | 311 | 41 | 0 |
| Altoona | 0.3 | 0.2 | 291 | 33 | 0 |
| Arendtsville | 3.5 | 3.5 | 345 | 48 | 0 |
| Beaver Falls | 0.6 | 0.6 | 4 | 0 | |
| Brighton Township | 2.1 | 2.0 | 61 | 46 | 0 |
| Bristol | 0.8 | 0.7 | 308 | 38 | 0 |
| Carlisle | 1.5 | 0.9 | 231 | 40 | 0 |
| Chambersburg | 0 | ||||
| Charleroi | 2.0 | 2.0 | 270 | 44 | 0 |
| Chester | 2.9 | 2.8 | 348 | 44 | 0 |
| Erie | 4.7 | 4.3 | 152 | 51 | 0 |
| Farrell | 3.0 | 2.9 | 109 | 48 | 0 |
| Florence | 0.8 | 0.7 | 273 | 38 | 0 |
| Fort McIntosh | 1.3 | 1.2 | 40 | 42 | 0 |
| Freemansburg | 1.2 | 0.9 | 83 | 36 | 0 |
| Greensburg | 1.4 | 1.3 | 19 | 44 | 0 |
| Harrisburg | 0.4 | 0.1 | 301 | 41 | 0 |
| Hershey | 0.9 | 0.5 | 106 | 38 | 0 |
| Holbrook | 3.6 | 3.5 | 138 | 50 | 0 |
| Houston | 1.5 | 1.5 | 0 | 40 | 0 |
| Johnstown | 2.0 | 1.9 | 140 | 38 | 0 |
| Kittanning | 1.1 | 1.0 | 90 | 37 | 0 |
| Kutztown | 0.9 | 0.8 | 25 | 36 | 0 |
| Lancaster | 0.9 | 0.4 | 152 | 39 | 0 |
| Lancaster Downwind | |||||
| Landenberg | 0.5 | 0.3 | 110 | 37 | 0 |
| Lebanon | 1.0 | 0.9 | 292 | 36 | 0 |
| Marcus Hook | |||||
| Methodist Hill | |||||
| Montoursville | 1.1 | 1.0 | 316 | 36 | 0 |
| Moshannon | |||||
| New Garden - Airport | 1.3 | 1.2 | 21 | 46 | 0 |
| New Milford | 1.8 | 1.7 | 54 | 33 | 0 |
| Norristown | 0.9 | 0.5 | 28 | 40 | 0 |
| Peckville | 1.7 | 1.5 | 69 | 33 | 0 |
| Reading Airport | 1.3 | 0.9 | 192 | 36 | 0 |
| Salladasburg | 1.9 | 1.8 | 347 | 36 | 0 |
| Scranton | 0.8 | 0.6 | 51 | 32 | 0 |
| State College | 1.0 | 0.5 | 310 | 35 | 0 |
| Strongstown | 4.0 | 3.9 | 136 | 42 | 0 |
| Swiftwater | 0.7 | 0.3 | 228 | 35 | 0 |
| Tioga County | 1.8 | 1.4 | 200 | 41 | 0 |
| Towanda | |||||
| Tunkhannock | 1.5 | 1.1 | 157 | 39 | 0 |
| Uniontown | |||||
| Warren - Overlook | 0.8 | 0.8 | 60 | 41 | 0 |
| Warren East | 2.7 | 2.7 | 86 | 36 | 0 |
| York | 0.6 | 0.3 | 226 | 41 | 0 |
| York Downwind | 2.0 | 1.9 | 252 | 48 | 0 |
For data comparision purposes, see the National Ambient Air Quality Standards on the EPA web site.
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