Norristown, Pennsylvania Air Pollution: Real-time Air Quality Index (AQI)

Norristown, Pennsylvania
Camden Spruce St, Newjersey
South Camden, Newjersey
Chester, Pennsylvania
Marcus Hook, Pennsylvania
Bristol, Pennsylvania
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Norristown, Pennsylvania AQI: Norristown, Pennsylvania Real-time Air Quality Index (AQI).
22
Good
Updated on Monday 8:00
temperature: -2°C
currentpast 2 daysminmax
PM2.5 AQI
22Norristown, Pennsylvania, USA PM25 (fine particulate matter) measured by : • Bureau of Air Quality, Pennsylvania s Department of Environmental Protection • Air Now - US EPA. Values are converted to the US EPA AQI standard.730
O3 AQI
22Norristown, Pennsylvania, USA O3 (ozone) measured by : • Bureau of Air Quality, Pennsylvania s Department of Environmental Protection • Air Now - US EPA. Values are converted to the US EPA AQI standard.134
NO2 AQI
15Norristown, Pennsylvania, USA NO2 (nitrogen dioxide) measured by : • Bureau of Air Quality, Pennsylvania s Department of Environmental Protection • Air Now - US EPA. Values are converted to the US EPA AQI standard.233
Weather Information
Temp.
-2Norristown, Pennsylvania, USA t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).-816
Pressure
1026Norristown, Pennsylvania, USA p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).9981026
Humidity
44Norristown, Pennsylvania, USA h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).2964
Wind
1Norristown, Pennsylvania, USA w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).09
Marker
map © OpenStreetMap contributors

Air Quality Forecast
MON 3
3°C
-5°C
TUE 4
12°C
-1°C
WED 5
13°C
6°C
THU 6
12°C
0°C
FRI 7
9°C
-1°C
PM2.5
O3
Monday 3Tuesday 4Wednesday 5Thursday 6Friday 7
hour
03691215182103691215182103691215182103691215182103691215
Wind Speed (m/s)
3233343343456666667912131177556891011101010998






































Temp.
-5°-5°-5°-2°1°3°0°0°-1°-1°-1°3°10°11°9°7°7°7°8°11°12°12°13°12°11°8°6°7°9°7°3°0°0°0°-1°4°7°9°
relative humidity
4850483727274043454553584344586380949189869393968480827853595757565654393236
barometric pressure
1025102510261026102510241025102510251025102510241021101910191018101610131011100810029969959939929939949959949959991002100310051007100810071006
total precipitation
NaN0.32.17.89.50.11.60.30.30.1
UVI:
4


6:34 ~ 17:55
UVI:
4


6:32 ~ 17:56
UVI:
2


6:31 ~ 17:57
UVI:
4


6:29 ~ 17:58
UVI:
5


6:28 ~ 17:59
Forecast plotted using timezone -05:00
Latest forecast updates:
Wind: 4 hours ago [Mar 3, 2025 10:48 AM]
fine particulate matter: 18 hours ago [Mar 2, 2025 8:33 PM]
ozone: 18 hours ago [Mar 2, 2025 8:38 PM]
click to view the detailed forecast

Air Quality Data provided by: the Bureau of Air Quality, Pennsylvania's Department of Environmental Protection (dep.pa.gov) and Air Now - US EPA (airnow.gov)

Note that the measurement for NO2 (nitrogen dioxide) are taken from the station: Chester, Pennsylvania
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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir 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.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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