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 2/10/2026 8:00:00 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 | 20 | 20.5 | 28 | ||||||
| Altoona | 0.8 | 15 | 14.9 | ||||||
| Arendtsville | 0.3 | 1.1 | 32 | 17.1 | 0.7 | 16.4 | 17.2 | ||
| Beaver Falls | 36.3 | 34 | 1 | 8.8 | 9.8 | ||||
| Brighton Township | 0.4 | 61 | |||||||
| Bristol | 25 | ||||||||
| Carlisle | 45.0 | ||||||||
| Charleroi | 0.4 | 35 | 16.6 | 1.4 | 15.4 | 16.8 | |||
| Chester | 27 | 13.6 | 0 | 12.6 | 12.3 | ||||
| Erie | 0.4 | 35 | 33.9 | 39 | 0.2 | 16 | 16.2 | ||
| Farrell | 50 | 32.0 | |||||||
| Florence | 0.8 | 61 | 21.9 | ||||||
| Fort McIntosh | 61 | 30.6 | |||||||
| Freemansburg | 0.8 | 10 | 21.0 | 3.2 | 39 | 42.2 | |||
| Greensburg | 48 | 12.8 | |||||||
| Harrisburg | 2 | 33.7 | |||||||
| Hershey | 17 | 34.0 | 58 | ||||||
| Holbrook | 53 | 12.7 | |||||||
| Houston | 61 | 21.1 | 0.2 | 6 | 6.3 | ||||
| Johnstown | 0.3 | 1.2 | 34 | 13.4 | 23 | 0.4 | 19 | 19.5 | |
| Kittanning | 59 | 28.5 | |||||||
| Kutztown | 28 | ||||||||
| Lancaster | 32 | 19.8 | 27 | ||||||
| Lancaster Downwind | 34 | 21.5 | |||||||
| Lebanon | 22.5 | ||||||||
| Marcus Hook | 10.6 | ||||||||
| Methodist Hill | 57 | ||||||||
| Montoursville | 23 | ||||||||
| New Garden - Airport | 32 | 17.0 | 2.3 | ||||||
| New Milford | 15.6 | ||||||||
| Norristown | 25 | 15.8 | |||||||
| Peckville | 17 | ||||||||
| Reading Airport | 2.5 | 21 | 25.7 | ||||||
| Salladasburg | 22.0 | ||||||||
| Scranton | 0.3 | 0.6 | 23 | 19.6 | 35 | 0 | 23.3 | 23.1 | |
| State College | 0.7 | 34 | 25.3 | 13.3 | 18.5 | 31.9 | |||
| Strongstown | 1.8 | 57 | 13.2 | ||||||
| Swiftwater | 18 | ||||||||
| Tioga County | 32 | 25.0 | |||||||
| Towanda | 32 | 31.7 | 0 | 14.6 | 14.6 | ||||
| Tunkhannock | 15.9 | ||||||||
| Uniontown | 48 | 12.6 | 0.8 | 6.7 | 7.6 | ||||
| Warren - Overlook | 2.1 | 45 | 31.1 | ||||||
| Warren East | 7.1 | ||||||||
| York | 1.1 | 21.8 | 1.2 | 20.9 | 22.1 | ||||
| York Downwind | 36 |
| Site Name | 1-Hr SWS (mph) | 1-Hr VWS (mph) | 1-Hr VWD (degs) | 1-Hr AT (degF) | 1-Hr SR (w/m2) |
|---|---|---|---|---|---|
| Allentown | 3.4 | 1.5 | 277 | 32 | 0 |
| Altoona | 2.4 | 1.4 | 287 | 43 | 0 |
| Arendtsville | 6.8 | 6.6 | 207 | 39 | 0 |
| Beaver Falls | 3.0 | 2.3 | 327 | 49 | 0 |
| Brighton Township | 9.0 | 8.5 | 286 | 47 | 0 |
| Bristol | 3.1 | 3.0 | 164 | 33 | 0 |
| Carlisle | 2.5 | 1.0 | 34 | 33 | 0 |
| Charleroi | 3.2 | 2.6 | 323 | 51 | 0 |
| Chester | 3.9 | 3.8 | 223 | 33 | 0 |
| Erie | 4.0 | 3.9 | 249 | 35 | 0 |
| Farrell | 7.8 | 7.6 | 307 | 41 | |
| Florence | 6.2 | 5.8 | 267 | 50 | 0 |
| Fort McIntosh | 3.3 | 2.9 | 242 | 49 | 0 |
| Freemansburg | 2.1 | 1.4 | 279 | 32 | 0 |
| Greensburg | 4.8 | 4.3 | 282 | 52 | 0 |
| Harrisburg | 1.6 | 1.3 | 62 | 33 | 0 |
| Hershey | 2.9 | 2.6 | 68 | 30 | 0 |
| Holbrook | 13.5 | 12.7 | 271 | 55 | 0 |
| Houston | 3.6 | 2.5 | 290 | 52 | 0 |
| Johnstown | 2.2 | 0.7 | 69 | 47 | 0 |
| Kittanning | 4.4 | 3.9 | 271 | 48 | 0 |
| Kutztown | 2.6 | 1.2 | 241 | 31 | 0 |
| Lancaster | 3.4 | 2.8 | 224 | 37 | 0 |
| Lancaster Downwind | |||||
| Lebanon | 1.5 | 0.9 | 301 | 31 | 0 |
| Marcus Hook | |||||
| Methodist Hill | |||||
| Montoursville | 1.7 | 1.0 | 128 | 34 | 0 |
| New Garden - Airport | 7.8 | 7.6 | 178 | 34 | 0 |
| New Milford | 5.2 | 4.7 | 158 | 32 | 0 |
| Norristown | 5.7 | 5.5 | 164 | 35 | 0 |
| Peckville | 1.8 | 1.5 | 215 | 33 | 0 |
| Reading Airport | 1.7 | 0.8 | 339 | 32 | 0 |
| Salladasburg | 1.0 | 0.2 | 3 | 31 | 0 |
| Scranton | 1.9 | 1.8 | 214 | 34 | 0 |
| State College | 1.9 | 1.0 | 22 | 37 | 0 |
| Strongstown | 3.2 | 3.2 | 4 | 2 | |
| Swiftwater | 1.7 | 0.9 | 34 | 29 | 0 |
| Tioga County | 5.1 | 4.8 | 201 | 25 | 0 |
| Towanda | 3.3 | 1.9 | 237 | 35 | 0 |
| Tunkhannock | 11.2 | 11.0 | 148 | 34 | 0 |
| Uniontown | |||||
| Warren - Overlook | 6.2 | 5.9 | 282 | 38 | 0 |
| Warren East | 5.9 | 5.3 | 300 | 42 | 0 |
| York | 3.4 | 2.8 | 250 | 37 | 0 |
| York Downwind | 10.5 | 10.2 | 211 | 34 | 0 |
For data comparision purposes, see the National Ambient Air Quality Standards on the EPA web site.
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