Lehigh Valley
 
Data 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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
35 
Good
Health Message: None
Air Quality Index (AQI)
40 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
35 
Good
Particles (PM2.5)
40 
Good
Forecast Discussion: Current Conditions as of 1 PM on Friday: Breezy and overcast conditions continue on Friday with scattered showers throughout the remainder of the day. Unsettled weather will continue into the weekend until the system finally begins to lift out of the region on Sunday. High pressure will return early next week. Good air quality is expected into at least early next week. *** Saturday’s Forecast: Scattered showers will continue into Saturday, though temperatures are expected to be at least a little warmer than that of Friday. Breezy easterly flow will continue to provide ample mixing to help limit PM-2.5 concentrations to the good range. Afternoon highs will vary slightly across the region, but most places will see highs in the mid-60s under mostly cloudy skies. *** Sunday’s Forecast: The cut off system that has been part of the cause for the overcast and wet conditions the past few days will finally begin to lift northward early on Sunday. A chance for scattered showers will continue, but the likelihood will decrease over the course of the day as the system begins to move further from the area. Winds will be lighter than the breezy conditions recently, but we should still see PM-2.5 concentrations remaining inside the good range. Temperatures are expected to climb into the 70s by late afternoon. *** Monday’s Forecast: Temperatures will again reach the 70s on Monday as we see a transition from the departing system to high pressure beginning to build over the region. Light and variable winds early will become breezy and more northerly later in the day with the area of high pressure beginning to build from the north. PM-2.5 concentrations will remain at levels mostly inside the good range, though higher in the good range than the previous few days. Some scattered low moderate readings are possible, but only as a result of a few hours with readings at more moderate levels. *** Extended Outlook: High pressure will continue to build over the region through the middle of the week with temperatures near normal values under a mix of sun and clouds. Breezy conditions should help to keep air quality conditions at levels inside the higher end of the good range. Aside from a few isolated showers, the middle portion of the week should be on the dry side. Over the next few days, the track of current Hurricane Matthew will be watched for potential impacts along the east coast. Currently, the only impact this region would see is potential cloud cover associated with the system. If the actual track ends up further east, as has happened with the last few systems that had looked to hug the coastline in the 5-7 day range, sunshine would be more likely than overcast conditions. Overall, air quality is expected to remain good heading into at least the middle of the week and could continue into late week if conditions allow for it. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EDT
19
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 19 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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