Real-time air quality index in New Castle, Indiana today
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)
40
Good
New Castle, Indiana
Last updated: ... (Local time)
Common air pollutants in New Castle, Indiana
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.76 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
22.73 μg/m³
0
55
155
255
425
605+
Ozone (O3)
43.49 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
1.97 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
7.41 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.23 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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New Castle, Indiana air quality map: Real-time AQI near you
Air quality in nearby cities
Muncie, Indiana
AQI 41
Good
5.20μg/m³
PM2.5
22.97μg/m³
PM10
43.99ppb
O3
2.06ppb
SO2
7.32ppb
NO2
0.23ppm
CO
Yorktown, Indiana
AQI 40
Good
4.82μg/m³
PM2.5
22.70μg/m³
PM10
42.98ppb
O3
2.04ppb
SO2
7.20ppb
NO2
0.23ppm
CO
Anderson, Indiana
AQI 41
Good
4.71μg/m³
PM2.5
21.04μg/m³
PM10
43.96ppb
O3
2.00ppb
SO2
6.99ppb
NO2
0.23ppm
CO
Connersville, Indiana
AQI 42
Good
4.23μg/m³
PM2.5
19.38μg/m³
PM10
45.06ppb
O3
1.52ppb
SO2
7.85ppb
NO2
0.25ppm
CO
Greenfield, Indiana
AQI 40
Good
4.73μg/m³
PM2.5
20.09μg/m³
PM10
43.09ppb
O3
1.37ppb
SO2
6.67ppb
NO2
0.25ppm
CO
Richmond, Indiana
AQI 44
Good
4.79μg/m³
PM2.5
18.61μg/m³
PM10
47.02ppb
O3
1.92ppb
SO2
7.33ppb
NO2
0.19ppm
CO
How accurate is Indiana, USA air quality data?
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
Frequently asked questions
How frequently is the air quality data for New Castle, Indiana updated?
Air quality data for New Castle, Indiana is updated on an hourly basis.
When did New Castle, Indiana experience the worst air quality in the last 24 hours?
The worst air quality in New Castle, Indiana was recorded at 10:00:00 on 2026-07-23.
When did New Castle, Indiana have its best air quality in the last 24 hours?
The best air quality in New Castle, Indiana was recorded at 03:00:00 on 2026-07-23.
What is the real-time air quality index for New Castle, Indiana?
The real-time air quality index in New Castle, Indiana is 40, currently categorized as Good.
Which pollutant is found most often in New Castle, Indiana?
The most common pollutant in New Castle, Indiana is O3.
What can I do if the air quality in New Castle, Indiana is poor?
If the air quality in New Castle, Indiana is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in New Castle, Indiana?
The measured PM2.5 levels in New Castle, Indiana at present are 4.765 μg/m3.
What are the current PM10 levels at New Castle, Indiana?
The current PM10 levels in New Castle, Indiana are 22.728 μg/m3.
What are the current carbon monoxide (CO) levels at New Castle, Indiana?
The current carbon monoxide (CO) level in New Castle, Indiana is 0.234 ppm.
What are the current sulfur dioxide (SO2) levels at New Castle, Indiana?
The current sulfur dioxide (SO2) levels in New Castle, Indiana are 1.972 ppb.
What are the current ozone (O3) levels at New Castle, Indiana?
The current ozone (O3) levels at New Castle, Indiana is 43.486 ppm.
What are the current nitrogen dioxide (NO2) levels at New Castle, Indiana?
The current nitrogen dioxide (NO2) levels at New Castle, Indiana is 7.414 ppb.
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