New York, NY 45° Los Angeles, CA 65° Chicago, IL 38° Houston, TX 61° Miami, FL 73° Phoenix, AZ 68° Seattle, WA 51° Denver, CO 47° Toronto, ON 35° Vancouver, BC 49°
WeatherLive › Pennsylvania › Center City › Air Quality

Center City, PA Air Quality

← Center City

Air quality in Center City

The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.

US AQI · EPA
26
Good
PM2.5
2.9 µg/m³
WHO guideline 15
PM10
3 µg/m³
WHO guideline 45
NO₂ · O₃
17 · 54
µg/m³

Hour by hour (12h)

US EPA AQI
4:00 AM 💨 PM2.5 2.9 µg/m³
26Good
5:00 AM 💨 PM2.5 2.5 µg/m³
26Good
6:00 AM 💨 PM2.5 2.5 µg/m³
24Good
7:00 AM 💨 PM2.5 2.9 µg/m³
22Good
8:00 AM 💨 PM2.5 3.3 µg/m³
21Good
9:00 AM 💨 PM2.5 3.3 µg/m³
20Good
10:00 AM 💨 PM2.5 2.8 µg/m³
19Good
11:00 AM 💨 PM2.5 2.5 µg/m³
19Good
12:00 PM 💨 PM2.5 2.2 µg/m³
20Good
1:00 PM 💨 PM2.5 2.3 µg/m³
20Good
2:00 PM 💨 PM2.5 2.4 µg/m³
20Good
3:00 PM 💨 PM2.5 3 µg/m³
20Good

Next few days

daily max · US EPA AQI
Fri 💨 Moderate · UV Low
52
Sat 💨 Good · UV Low
29
Sun 💨 Good · UV Moderate
30
Mon 💨 Moderate · UV Moderate
59
Tue 💨 Moderate · UV Moderate
63

Weather map — Center City

Center City →
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 4:00 AM