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)
44 
Good
Health Message: None
Air Quality Index (AQI)
47 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
44 
Good
Particles (PM2.5)
47 
Good
Forecast Discussion: Current Conditions as of 2 PM on Monday: Overcast conditions this morning have turned to a mix of sun and clouds with temperatures into the upper 40s to low 50s as high pressure builds from the west. Unsettled conditions this week, as precipitation is set to move in on Tuesday, will help air quality conditions remain at mostly good levels. *** Tuesday’s Forecast: High pressure that moved in on Monday will exit the region quickly early on Tuesday. After mostly clear skies into the early overnight hours, cloud cover will increase again during the morning on Tuesday. Precipitation will move in during the afternoon hours with the likelihood that we will see a wintry mix over the course of the event. While temperatures do not appear to be favorable for all of the precipitation to fall as snow or accumulate greatly, the setup is favorable that some areas could see slick conditions at times. Winds will be light and easterly, which will help PM-2.5 concentrations remain at levels inside the good range. Highest concentrations over the course of the day will occur during the early morning hours but will improve, especially with the onset of precipitation, by the afternoon. Highs for the day will be held to the mid-30s in some locations with a few warmer spots likely reaching the 40 degree mark. *** Extended Outlook: A cold front will swing through the region after the precipitation has moved through late Tuesday night to early Wednesday morning. High pressure will make another brief appearance on Wednesday before the next disturbance arrives on Thursday. This next system likely will not produce as much precipitation as the event on Tuesday, but will bring a stronger cold front with breezy conditions and colder air to end the work week. PM-2.5 concentrations are expected to remain at levels inside the good range. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EST
76
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 4 Good
Particles (PM2.5) 76 Moderate

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