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's High Tomorrow's High
Air Quality Index (AQI)
66 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
62 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
66 
Moderate
Particles (PM2.5)
62 
Moderate
Forecast Discussion: Current conditions: At 2 p.m. EST this Monday afternoon, high pressure is moving off of the east coast, with a return southerly flow bringing a little milder air into the area. Mixing in the boundary layer is rather limited, so fine particulate levels remain elevated into the moderate range. Another bout of very mild spring like air will make a brief return to the area during the middle of this week, then the weather will turn much colder by the end of the week. Tonight will be rather cloudy with a rain or snow shower here and there, as lows only drop to the middle 30s. *** Tuesday's forecast: Light south to southwesterly flow will keep fine particulate concentrations moderate for the day Tuesday. With clouds and limited sunshine, there will also be a shower or two as the mercury moves into the lower 60s. *** Extended forecast: A strong cold front will move through by Wednesday evening, with rather mild air and the chance for showers and thunderstorms out ahead of it. Temperatures may reach the lower 70s under brisk southwesterly winds, and with increasing ventilation, fine particulate levels will improve to the good range. Turning much colder by Thursday with winds shifting into the northwest and temperatures holding in the middle 40s. A weak low pressure area might even bring a bit of snow to the area Thursday night or Friday morning. Cold weather will remain with us into Saturday, then moderation in temperatures is likely by Sunday. Air quality will be good for the latter part of this week.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 17:00 EST
64
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 37 Good
Particles (PM2.5) 64 Moderate

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