Stay updated with real-time air quality in Worcester, Pennsylvania featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
30
Good
Worcester, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.32 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.93 μg/m³
0
55
155
255
425
605+
31.98 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
10.22 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Worcester, Pennsylvania
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AQI 32
Good
2.38μg/m³
PM2.5
9.49μg/m³
PM10
34.96ppb
O3
0.46ppb
SO2
10.75ppb
NO2
0.29ppm
CO
AQI 30
Good
2.29μg/m³
PM2.5
9.59μg/m³
PM10
32.43ppb
O3
0.56ppb
SO2
9.17ppb
NO2
0.28ppm
CO
AQI 31
Good
2.48μg/m³
PM2.5
11.88μg/m³
PM10
34.42ppb
O3
0.48ppb
SO2
11.14ppb
NO2
0.29ppm
CO
AQI 31
Good
2.05μg/m³
PM2.5
8.26μg/m³
PM10
32.77ppb
O3
0.52ppb
SO2
10.21ppb
NO2
0.28ppm
CO
AQI 31
Good
2.09μg/m³
PM2.5
8.48μg/m³
PM10
32.58ppb
O3
0.53ppb
SO2
9.84ppb
NO2
0.28ppm
CO
AQI 31
Good
2.52μg/m³
PM2.5
11.90μg/m³
PM10
34.22ppb
O3
0.49ppb
SO2
11.35ppb
NO2
0.29ppm
CO
Air quality data and pollutant measurements for Pennsylvania, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Worcester, Pennsylvania is updated every hour.
The worst air quality in Worcester, Pennsylvania in the last 24 hours was observed at 07:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Worcester, Pennsylvania was observed at 08:00:00 on 2026-10-22.
The current air quality in Worcester, Pennsylvania is 30, categorized as Good based on real-time data.
The most common pollutant in Worcester, Pennsylvania is O3.
If the air quality in Worcester, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Worcester, Pennsylvania is 2.322 μg/m3.
The current PM10 concentration at Worcester, Pennsylvania is 9.928 μg/m3.
The current carbon monoxide (CO) concentration at Worcester, Pennsylvania is 0.292 ppm.
The current sulfur dioxide (SO2) concentration at Worcester, Pennsylvania is 0.506 ppb.
The current ozone (O3) concentration at Worcester, Pennsylvania is 31.984 ppm.
The current nitrogen dioxide (NO2) concentration at Worcester, Pennsylvania is 10.22 ppb.
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