Stay updated with real-time air quality in New Castle City, 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)
44
Good
New Castle City, Pennsylvania
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.66 μg/m³
0
55
155
255
425
605+
21.78 ppb
0
55
71
86
201
201+
1.24 ppb
0
36
76
186
605
1005+
4.72 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
New Castle City, Pennsylvania
New Castle City, Pennsylvania
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AQI 58
Moderate
13.33μg/m³
PM2.5
52.48μg/m³
PM10
25.93ppb
O3
1.70ppb
SO2
5.14ppb
NO2
0.25ppm
CO
AQI 33
Good
6.23μg/m³
PM2.5
27.67μg/m³
PM10
24.24ppb
O3
1.86ppb
SO2
5.28ppb
NO2
0.26ppm
CO
AQI 44
Good
7.82μg/m³
PM2.5
20.28μg/m³
PM10
25.03ppb
O3
2.00ppb
SO2
5.48ppb
NO2
0.27ppm
CO
AQI 33
Good
6.14μg/m³
PM2.5
27.44μg/m³
PM10
24.15ppb
O3
1.86ppb
SO2
5.28ppb
NO2
0.26ppm
CO
AQI 49
Good
8.50μg/m³
PM2.5
20.16μg/m³
PM10
23.59ppb
O3
1.80ppb
SO2
5.71ppb
NO2
0.28ppm
CO
AQI 60
Moderate
13.80μg/m³
PM2.5
37.48μg/m³
PM10
32.01ppb
O3
1.66ppb
SO2
5.76ppb
NO2
0.23ppm
CO
The air quality data for Pennsylvania, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for New Castle City, Pennsylvania are available every hour.
New Castle City, Pennsylvania experienced its worst air quality at 02:00:00, 2025-07-24.
The best air quality in New Castle City, Pennsylvania was observed at 09:00:00 on 2025-07-25.
The air quality in New Castle City, Pennsylvania right now is Moderate, with an AQI of 56.
In New Castle City, Pennsylvania, PM2.5 is the most frequently found pollutant.
When air quality in New Castle City, Pennsylvania is compromised, staying indoors and wearing a mask can reduce health risks.
New Castle City, Pennsylvania currently has a PM2.5 concentration of 12.022 μg/m3.
New Castle City, Pennsylvania currently has a PM10 concentration of 42.835 μg/m3.
The current carbon monoxide (CO) level in New Castle City, Pennsylvania is 0.197 ppm.
The current sulfur dioxide (SO2) concentration in New Castle City, Pennsylvania is 2.302 ppb.
New Castle City, Pennsylvania currently has an ozone (O3) concentration of 23.802 ppm.
The current level of nitrogen dioxide (NO2) in New Castle City, Pennsylvania is 5.769 ppb.
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