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)
45 
Good
Health Message: None
Air Quality Index (AQI)
35 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
45 
Good
Particles (PM2.5)
35 
Good
Forecast Discussion: Current Conditions as of 1 PM on Wednesday: Temperatures have rebounded into the mid-40s this afternoon under a mix of sun and clouds. High pressure building over the region will make a brief appearance for the remainder of the day with a cold front set to bring the coldest air of the season starting Thursday and lasting into the weekend. *** Thursday's Forecast: High pressure will be quick to depart early on Thursday as a strong cold front approaches from the west. Breezy westerly flow will help to usher in the coldest air mass we have seen so far this season. Highs on Thursday will approach the upper 30s to near 40 degrees before falling into the 20s Thursday night. The breezy westerly flow combined with the arrival of the dry and clean air mass will allow for good air quality with PM-2.5 concentrations inside the good range. *** Extended Outlook: Cold and dry conditions will continue for Friday and persist through the weekend. Breezy westerly flow Friday will continue to hold PM-2.5 concentrations inside the good range. Winds will become a lighter breeze over the weekend with PM-2.5 concentrations slowly climbing, but may only briefly reach moderate levels on Sunday before the next disturbance moves in late Sunday/Monday. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 4:00 EST
80
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 5 Good
Particles (PM2.5) 80 Moderate

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