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)
58
Moderate
Worcester, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.97 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
58.39 μg/m³
0
55
155
255
425
605+
32.86 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
24.34 ppb
0
54
101
361
1250
2050+
0.39 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Worcester, Pennsylvania
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AQI 58
Moderate
12.59μg/m³
PM2.5
54.21μg/m³
PM10
36.99ppb
O3
0.64ppb
SO2
28.80ppb
NO2
0.39ppm
CO
AQI 58
Moderate
12.60μg/m³
PM2.5
55.17μg/m³
PM10
31.74ppb
O3
0.69ppb
SO2
23.43ppb
NO2
0.38ppm
CO
AQI 56
Moderate
12.46μg/m³
PM2.5
53.63μg/m³
PM10
33.44ppb
O3
0.65ppb
SO2
27.58ppb
NO2
0.39ppm
CO
AQI 56
Moderate
12.48μg/m³
PM2.5
56.25μg/m³
PM10
34.90ppb
O3
0.68ppb
SO2
25.98ppb
NO2
0.39ppm
CO
AQI 58
Moderate
12.71μg/m³
PM2.5
57.24μg/m³
PM10
33.97ppb
O3
0.69ppb
SO2
25.22ppb
NO2
0.39ppm
CO
AQI 56
Moderate
11.51μg/m³
PM2.5
50.35μg/m³
PM10
28.63ppb
O3
0.66ppb
SO2
24.33ppb
NO2
0.39ppm
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 04:00:00 on 2026-03-10.
In the last 24 hrs, the best air quality in Worcester, Pennsylvania was observed at 04:00:00 on 2026-03-10.
The current air quality in Worcester, Pennsylvania is 58, categorized as Moderate based on real-time data.
The most common pollutant in Worcester, Pennsylvania is PM2.5.
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 12.972 μg/m3.
The current PM10 concentration at Worcester, Pennsylvania is 58.391 μg/m3.
The current carbon monoxide (CO) concentration at Worcester, Pennsylvania is 0.394 ppm.
The current sulfur dioxide (SO2) concentration at Worcester, Pennsylvania is 0.701 ppb.
The current ozone (O3) concentration at Worcester, Pennsylvania is 32.86 ppm.
The current nitrogen dioxide (NO2) concentration at Worcester, Pennsylvania is 24.338 ppb.
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