Susquehanna Valley
 
Data and Forecasts courtesy of:
 

 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
 
Local Air Quality Resources
Air Quality Action Day Program | Current Air Quality Index | Forecast
 
State Air Quality Resources
Air Quality Partnership of Lehigh Valley - Berks
Air Quality Partnership of the Delaware Valley
Air Quality Partnership of the Susquehanna Valley
American Lung Association (ALA) of Pennsylvania
PA Allergy & Asthma Association
Pennsylvania DEP - BAQ - Contacts
Pennsylvania DEP - BAQ - Current Air Quality Index (AQI) by Area
Pennsylvania DEP - Bureau of Air Quality (BAQ)
Pennsylvania DEP – Air Quality Forecast Home Page
Pennsylvania DEP – Home Page
Southwest PA Air Quality Partnership
 
Data and Forecasts courtesy of:
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
48 
Good
Health Message: None
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
48 
Good
Particles (PM2.5)
48 
Good
Ozone
54 
Moderate
Particles (PM2.5)
52 
Moderate
Forecast Discussion: Current Conditions: As of 2 PM on Friday, mostly cloudy skies prevail over the region as a warm and moist air mass continues to move in from the south. This air mass is moving northward in advance of a cold front, which is beginning to make its way into the western portion of the Commonwealth. Right now, southerly winds are forcing temperatures well into the 80s. Expect a round of showers / thunderstorms to develop later this afternoon as the front continues to progress east through PA. Due to the cloud cover, ozone remains in the good range. PM 2.5 levels rose earlier today thanks to the humid conditions over the region. This will be a different story this weekend as drier conditions build in. Now onto the day-to-day details... *** On Saturday, mostly sunny skies will persist across the area as the frontal system, which made its way through PA on Friday, pushes well off to our east. On the backside of the front, our winds will turn out of the west. The afternoon sunshine will still allow temperatures to reach near normal (in the mid 80s). The most noticeable benefit of the passing cold front will be the decline in the dewpoint temperatures across the region (i.e. it won't feel as humid). The sunshine during the afternoon will allow ozone to creep toward the good / moderate threshold. PM 2.5 levels, on the other hand, will stay in the good range due to the decline in moisture across eastern PA. *** For Sunday, sunny skies will continue to persist across the region as higher pressure begins to build in over the eastern US. With high pressure now in control, expect the winds to die down and temperatures to climb during the afternoon. In fact, peak readings could climb into the upper 80s. The increase in ozone, that began to commence on Saturday, will continue in full earnest on Sunday. Peak ozone readings are likely to extend into the low moderate range. PM 2.5 levels will also increase closer toward the good / moderate threshold. *** On Monday, the sun will remain the prevalent feature in the sky as high pressure continues to control our weather. Clear skies during the day coupled with light southerly flow will force afternoon temperatures to peak in the upper 80s. With conditions becoming warm and increasingly humid, expect ozone and PM 2.5 levels to continue to rise through the moderate category. *** Extended Outlook: As we take a peek into next week, we notice that the week will start off on the seasonably warm side, thanks to an area of high pressure re-establishing itself along the East Coast. This high will not only force afternoon temperatures up but also air quality levels. In fact, ozone and PM 2.5 readings are expected to peak in the moderate category. By late Tuesday, a new cold front will begin to advance in from the west. This front will trigger a line of showers as it tracks off to the east. Once the front moves off to our east, expect a new area of high pressure to build in from the west. This high will make a slow eastward progression... basically becoming the dominant weather feature over our area from Thursday through the weekend. Due to the location of the front, we will see cooler, drier air to build in during the end of the week, reducing ozone and PM 2.5 levels to the good range. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EDT
52
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 31 Good
Particles (PM2.5) 52 Moderate

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