Lehigh 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)
45 
Good
Health Message: None
AQI - Pollutant Details
Ozone
48 
Good
Particles (PM2.5)
46 
Good
Ozone
42 
Good
Particles (PM2.5)
45 
Good
Forecast Discussion: Current conditions: At 2 p.m. EDT this Monday afternoon, a cold front was moving into central Pennsylvania with showers and thunderstorms close to it. Ozone and fine particulate levels are already coming down into the good range, and good air quality will continue to be the rule into Tuesday as a cooler and less humid air mass moves in. A thunderstorm will affect parts of the area this evening, then mostly cloudy later on tonight with a shower. *** Tuesday's forecast: Cooler and less humid air will be the rule on Tuesday with ozone and PM2.5 formation being restricted to the good range. Afternoon temperatures will only reach around 80 degrees with clouds and some sunshine. Partly cloudy and comfortable Tuesday night with lows in the lower 60s. *** Extended forecast: As high pressure moves off to the northeast a bit on Wednesday, winds will shift into the southeast. An increase in humidity will bring fine particulate up to the low moderate range, with ozone possibly moving to low moderate as well. The next cold front will move into the area later Thursday or Thursday night with a thunderstorm or two possible once again. Fine particulate and ozone may move into the low moderate zone. Drier air then works in behind the front Friday into Saturday, leading to period of seasonable temperatures and good air quality.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 16:00 EDT
45
Good
Health Message: None
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 45 Good
Particles (PM2.5) 22 Good

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