Susquehanna Valley
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) 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)
75 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
65 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
75 
Moderate
Ozone
54 
Moderate
Particles (PM2.5)
65 
Moderate
Ozone
50 
Good
Forecast Discussion: Current Conditions as of 1 PM on Friday: Unseasonably warm conditions will continue through this weekend, though not quite as hazy, hot, and humid as this past week. High pressure will cause most areas under the recent dry spell to remain rain free yet again, but the pattern may change as early as the middle of next week to return conditions back to near normal. *** Saturday’s Forecast: Dew point temperatures will gradually fall over the course of the day on Saturday, leading to a slight decrease in humidity levels. After patchy morning fog and some low level clouds, mostly sunny skies will return by the middle of the afternoon as temperatures climb into the low to mid 80s. High pressure situated more to our north and east will allow for the flow to be an east to southeasterly breeze. Typically when we see onshore flow, air quality conditions improve as a result of the cleaner maritime air mass that would be moving in. With the way both PM-2.5 and ozone concentrations have been a little elevated this week along with limited mixing, I expect at least PM-2.5 levels to still remain at moderate levels despite the improvement in conditions. Ozone concentrations will remain mostly inside the good range, but it is still possible that we see an isolated moderate reading or two. *** Sunday’s Forecast: Warm and dry conditions will continue on Sunday with temperatures again reaching the low to mid 80s under mostly sunny skies. Air quality wise, Sunday should be the best day of the period. PM-2.5 concentrations will fall to levels around the good/moderate threshold while ozone concentrations should peak in the higher end of the good range as the light southeasterly flow continues. *** Monday’s Forecast: Warmer and more humid conditions will begin to return by Monday as the winds turn more southerly. PM-2.5 concentrations will climb back into the moderate range with ozone not too far behind. Despite starting to approach the end of ozone season, conditions for the first half of the week starting on Monday will be favorable for moderate levels with temperatures well above normal, in the mid to upper 80s. *** Tuesday’s Forecast: Just as Sunday is likely to be the most favorable air quality day of the forecast, Tuesday is likely going to be the least favorable. With the work week starting back up for most, a continuation of light southwesterly flow, and temperatures still well above normal, near 90 degrees, ozone concentrations could push well into the moderate range. The possibility for some afternoon convection creating some clouds could help limit how high the levels climb, but will need to be something to keep an eye on over the course of the weekend. PM-2.5 concentrations will remain well into the moderate range. *** Extended Outlook: Conditions should become a little more unsettled by Wednesday, though temperatures will remain well above normal and humid conditions will continue. The increase in cloud cover should help to limit ozone concentrations to the good range for the second half of the week. PM-2.5 concentrations will be slower to return to the good range and may not do so until the weekend as the moisture currently looks to depart the region in the Friday/Saturday timeframe. After temperatures are well into the 80s again on Wednesday, we should see a return to more seasonable levels by late week and into the weekend. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 18:00 EDT
102
Unhealthy for Sensitive Groups
Health Message: People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 102 Unhealthy for Sensitive Groups
Ozone 97 Moderate

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