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)
51 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
38 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
51 
Moderate
Particles (PM2.5)
38 
Good
Forecast Discussion: Current Conditions as of 1 PM on Tuesday: A wintry mix has started to fall across the region and will continue to spread a little more northward and eastward over the remainder of the day. Drier conditions will prevail for Wednesday before much colder air arrives for the end of the week. *** Wednesday’s Forecast: The precipitation will end during the overnight hours from the southwest to the northeast with skies clearing a little bit through the rest of the morning on Wednesday. High pressure will make a second brief appearance this week, allowing for the drier conditions through the day with some periods of sunshine. Temperatures will rebound a little bit as highs will manage to reach the mid-40s. PM-2.5 concentrations will be in the good range for most locations, but a few scattered low moderate readings are possible in areas with calm winds and the low level moisture from the precipitation hours before. Highest hourly concentrations will occur during the morning hours with some mixing expected later in the day. *** Extended Outlook: As high pressure exits early on Thursday, a strong cold front will approach the region to bring a slight chance for some scattered showers and increasing winds by the afternoon. This front will bring colder temperatures for the end of the week and start of the weekend as well as good air quality. PM-2.5 concentrations in areas that saw moderate levels on Wednesday will return to the good range Thursday. This good air quality will continue into the weekend as high pressure builds by Saturday. The next chance for moderate conditions could come on Sunday, though the next disturbance in this pattern arriving on Monday will bring concentrations right back down to the good range. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EST
43
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 11 Good
Particles (PM2.5) 43 Good

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