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 8/13/2025 7:00:00 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 | 23 | 3.6 | 8 | ||||||
| Altoona | 0.1 | 4 | 6.2 | ||||||
| Arendtsville | 0.2 | 0.4 | 28 | 5.1 | 0 | 3.2 | 3.2 | ||
| Beaver Falls | 43 | 6.2 | 15 | 0.7 | 4.8 | 5.6 | |||
| Brighton Township | 0.2 | 47 | |||||||
| Bristol | 34 | ||||||||
| Carlisle | 7.4 | ||||||||
| Charleroi | 1 | 32 | 2.9 | 0.7 | 3.8 | 4.6 | |||
| Chester | 31 | 3.2 | 0 | 5.7 | 5.5 | ||||
| Erie | 0.1 | 40 | 3.8 | 8 | 0 | 2.5 | 2.3 | ||
| Farrell | 42 | 3.5 | |||||||
| Florence | 1 | 39 | 4.3 | ||||||
| Fort McIntosh | 44 | 4.7 | |||||||
| Freemansburg | 0.9 | 18 | 3.8 | 0.8 | 10 | 10.8 | |||
| Greensburg | 24 | 2.1 | |||||||
| Harrisburg | 24 | 7.9 | |||||||
| Hershey | 26 | 7.4 | 13 | ||||||
| Holbrook | 31 | 3.3 | |||||||
| Houston | 27 | 4.3 | 0.5 | 2.4 | 3 | ||||
| Johnstown | 0.1 | 0 | 17 | 4.5 | 10 | 0.3 | 6.4 | 6.8 | |
| Kittanning | 39 | 8.5 | |||||||
| Kutztown | 21 | ||||||||
| Lancaster | 28 | 2.8 | 7 | ||||||
| Lancaster Downwind | 22 | 2.3 | |||||||
| Lebanon | 21 | 4.9 | |||||||
| Marcus Hook | 3.8 | ||||||||
| Methodist Hill | 33 | ||||||||
| Montoursville | 42 | ||||||||
| New Garden - Airport | 32 | 3.0 | |||||||
| New Milford | 6.0 | ||||||||
| Norristown | 23 | 3.3 | |||||||
| Peckville | 23 | ||||||||
| Reading Airport | 0.6 | 27 | 3.7 | ||||||
| Salladasburg | 4.8 | ||||||||
| Scranton | 0.6 | 0.2 | 1 | 6.8 | 19 | 29.7 | 22.3 | 52 | |
| State College | 0.4 | 25 | 4.3 | 0 | 2.2 | 2 | |||
| Strongstown | 0.6 | 27 | 5.7 | ||||||
| Swiftwater | 18 | 6.2 | |||||||
| Tioga County | 33 | 6.1 | 0 | 0.6 | 0.4 | ||||
| Towanda | 19 | 5.4 | 0 | 4.1 | 4.7 | ||||
| Tunkhannock | 5.9 | ||||||||
| Uniontown | 24 | 3.1 | 1 | 12 | 13.1 | ||||
| Warren - Overlook | 0.9 | 32 | 4.1 | ||||||
| Warren East | 0 | ||||||||
| York | 0.7 | 31 | 3.8 | 0 | 3.1 | 2.7 | |||
| York Downwind | 27 |
| Site Name | 1-Hr SWS (mph) | 1-Hr VWS (mph) | 1-Hr VWD (degs) | 1-Hr AT (degF) | 1-Hr SR (w/m2) |
|---|---|---|---|---|---|
| Allentown | 3.6 | 3.3 | 228 | 71 | 0 |
| Altoona | 0.6 | 0.5 | 74 | 71 | 1 |
| Arendtsville | 3.0 | 2.1 | 251 | 77 | 0 |
| Beaver Falls | 5.7 | 5.1 | 244 | 75 | 0 |
| Brighton Township | 5.8 | 4.9 | 304 | 70 | 0 |
| Bristol | 3.4 | 3.1 | 270 | 72 | |
| Carlisle | 1.5 | 1.3 | 97 | 77 | 0 |
| Charleroi | 3.8 | 3.6 | 189 | 78 | 0 |
| Chester | 2.8 | 2.4 | 161 | 75 | 0 |
| Erie | 1.1 | 0.8 | 271 | 75 | 0 |
| Farrell | 5.1 | 4.7 | 245 | 74 | |
| Florence | 3.1 | 2.2 | 288 | 77 | 0 |
| Fort McIntosh | 3.3 | 1.6 | 240 | 73 | 0 |
| Freemansburg | 1.3 | 1.1 | 155 | 72 | 0 |
| Greensburg | 2.8 | 2.3 | 191 | 76 | 0 |
| Harrisburg | 1.3 | 1.1 | 86 | 77 | 0 |
| Hershey | 2.0 | 1.0 | 65 | 77 | 0 |
| Holbrook | 2.4 | 1.8 | 226 | 73 | 0 |
| Houston | 1.4 | 0.8 | 230 | 77 | 0 |
| Johnstown | 2.2 | 2.0 | 16 | 75 | 0 |
| Kittanning | 1.5 | 0.5 | 111 | 77 | 0 |
| Kutztown | 1.6 | 1.1 | 186 | 71 | 0 |
| Lancaster | 4.6 | 4.3 | 182 | 73 | 0 |
| Lancaster Downwind | |||||
| Lebanon | 1.1 | 0.6 | 88 | 72 | 0 |
| Marcus Hook | |||||
| Methodist Hill | |||||
| Montoursville | 3.1 | 2.8 | 77 | 80 | 0 |
| New Garden - Airport | 4.6 | 2.9 | 217 | 70 | 0 |
| New Milford | 1.3 | 0.8 | 314 | 71 | 0 |
| Norristown | 2.4 | 2.2 | 160 | 72 | 0 |
| Peckville | 1.7 | 0.4 | 113 | 74 | 0 |
| Reading Airport | 3.3 | 3.1 | 167 | 73 | 0 |
| Salladasburg | 1.5 | 1.0 | 194 | 78 | 0 |
| Scranton | 0.7 | 0.1 | 178 | 72 | 0 |
| State College | 1.7 | 1.4 | 180 | 72 | 0 |
| Strongstown | 2.5 | 2.4 | 246 | 72 | 0 |
| Swiftwater | 1.3 | 1.0 | 359 | 69 | 0 |
| Tioga County | 1.7 | 0.9 | 88 | 68 | 0 |
| Towanda | 1.2 | 0.6 | 9 | 70 | 0 |
| Tunkhannock | 4.0 | 2.9 | 232 | 69 | 0 |
| Uniontown | |||||
| Warren - Overlook | 1.0 | 0.8 | 341 | 74 | 0 |
| Warren East | 1.9 | 1.5 | 107 | 73 | 1 |
| York | 3.1 | 2.6 | 129 | 78 | 0 |
| York Downwind | 3.5 | 3.4 | 189 | 71 | 0 |
For data comparision purposes, see the National Ambient Air Quality Standards on the EPA web site.
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