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:
Current Conditions
Air Quality Index (AQI)
observed at 14:00 EST
60
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 31 Good
Particles (PM2.5) 60 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
60
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
67
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
60
Moderate
Particles (PM2.5)
67
Moderate
Forecast Discussion: *** Saturday’s Forecast: High pressure over the region early will give way to increasing clouds as a system set to bring some wintry weather Saturday evening to the region approaches. This system will start a period of some wild weather over this forecast period. A light southeasterly breeze will help conditions become quite overcast before the onset of precipitation, expected to be all in the form of snow. A clean and drier air mass from Friday will help PM-2.5 concentrations start the day in the good range, see a rise in hourly values over the morning to afternoon hours, and then return to the good range with the snowfall arrival late afternoon to early evening. Despite temperatures in the 30s for much of the day, several inches of accumulation are expected. This snowfall will not last long as a warming trend quickly arrives on Sunday. *** Sunday’s Forecast: Warm air returns quickly on Sunday to melt away the freshly fallen snow. Winds will become westerly to southerly with the warm up occurring aloft quicker than at the surface. Temperatures at the surface will stay in the 30s for a bit before the snow begins to melt in earnest under mid-February sunshine while reaching the lower 40s, and perhaps a brief jump to the mid to upper 40s by late afternoon in some areas. PM-2.5 concentrations are expected to climb into the moderate range. *** Monday’s Forecast: Warm air will continue to lift northward on Monday, continuing to melt away any remaining snow on the ground from late Saturday. A disturbance swinging through the region will bring a chance for rain showers during the daytime. With these showers and mostly cloudy conditions, temperatures will be held to the mid 40s for highs for the day. PM-2.5 concentrations will hang around the high good to low moderate range, dependent on what areas see more of the rainfall. On average, concentrations are expected to be in the moderate range for the day. *** Tuesday’s Forecast: Breezy southwesterly flow on Tuesday will allow for the warm air aloft to mix down and help temperatures climb into the 60s and quite possibly peaking in the low 70s. A classic Pennsylvania stretch of days where a little bit of all four seasons is experienced over a forecast period. The breezy flow will allow for some mixing, but PM-2.5 concentrations are still expected to remain on average inside the moderate range. *** Extended Outlook: Unseasonably warm conditions will continue on Wednesday with temperatures again in the 60s with southeastern locations most likely to reach the low 70s. A cold front late Wednesday will return temperatures closer to but still above normal through the end of the week. PM-2.5 concentrations will be in the moderate range early on Wednesday will improvement in air quality conditions behind the front. Northerly flow on Thursday would support good air quality but conditions could return to the moderate range by the weekend. --- Roble
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification