Stay updated with real-time air quality in New Castle, Indiana 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)
86
Moderate
New Castle, Indiana
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
28.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
66.22 μg/m³
0
55
155
255
425
605+
23.16 ppb
0
55
71
86
201
201+
1.38 ppb
0
36
76
186
605
1005+
10.56 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
New Castle, Indiana
New Castle, Indiana
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AQI 92
Moderate
31.47μg/m³
PM2.5
136.87μg/m³
PM10
26.84ppb
O3
1.81ppb
SO2
6.42ppb
NO2
0.26ppm
CO
AQI 86
Moderate
27.81μg/m³
PM2.5
100.05μg/m³
PM10
27.29ppb
O3
1.78ppb
SO2
6.06ppb
NO2
0.27ppm
CO
AQI 88
Moderate
29.29μg/m³
PM2.5
128.46μg/m³
PM10
26.08ppb
O3
1.76ppb
SO2
5.47ppb
NO2
0.27ppm
CO
AQI 86
Moderate
28.38μg/m³
PM2.5
117.03μg/m³
PM10
28.71ppb
O3
1.90ppb
SO2
7.63ppb
NO2
0.25ppm
CO
AQI 66
Moderate
11.54μg/m³
PM2.5
85.75μg/m³
PM10
29.06ppb
O3
1.75ppb
SO2
4.33ppb
NO2
0.28ppm
CO
AQI 86
Moderate
28.12μg/m³
PM2.5
44.76μg/m³
PM10
21.91ppb
O3
1.96ppb
SO2
8.69ppb
NO2
0.23ppm
CO
Air quality measurements for Indiana, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for New Castle, Indiana is updated on an hourly basis.
The worst air quality in New Castle, Indiana was recorded at 06:00:00 on 2025-07-22.
The best air quality in New Castle, Indiana was recorded at 01:00:00 on 2025-07-21.
The real-time air quality index in New Castle, Indiana is 86, currently categorized as Moderate.
The most common pollutant in New Castle, Indiana is PM10.
If the air quality in New Castle, Indiana is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in New Castle, Indiana at present are 28.302 μg/m3.
The current PM10 levels in New Castle, Indiana are 125.07 μg/m3.
The current carbon monoxide (CO) level in New Castle, Indiana is 0.259 ppm.
The current sulfur dioxide (SO2) levels in New Castle, Indiana are 1.843 ppb.
The current ozone (O3) levels at New Castle, Indiana is 24.262 ppm.
The current nitrogen dioxide (NO2) levels at New Castle, Indiana is 6.658 ppb.
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