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)
21
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)
2.65 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
11.40 μg/m³
0
55
155
255
425
605+
Ozone (O3)
22.96 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
1.50 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
6.60 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.22 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 21
Good
2.40μg/m³
PM2.5
10.01μg/m³
PM10
22.97ppb
O3
1.55ppb
SO2
6.71ppb
NO2
0.22ppm
CO
Yorktown, Indiana
AQI 21
Good
2.58μg/m³
PM2.5
11.12μg/m³
PM10
22.90ppb
O3
1.44ppb
SO2
6.64ppb
NO2
0.23ppm
CO
Anderson, Indiana
AQI 19
Good
2.49μg/m³
PM2.5
10.37μg/m³
PM10
21.11ppb
O3
1.41ppb
SO2
6.52ppb
NO2
0.24ppm
CO
Connersville, Indiana
AQI 22
Good
3.76μg/m³
PM2.5
17.46μg/m³
PM10
22.89ppb
O3
1.66ppb
SO2
6.80ppb
NO2
0.20ppm
CO
Greenfield, Indiana
AQI 19
Good
3.37μg/m³
PM2.5
16.33μg/m³
PM10
20.36ppb
O3
1.39ppb
SO2
6.25ppb
NO2
0.27ppm
CO
Richmond, Indiana
AQI 20
Good
3.45μg/m³
PM2.5
16.37μg/m³
PM10
21.53ppb
O3
1.66ppb
SO2
6.94ppb
NO2
0.16ppm
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 08:00:00 on 2025-10-21.
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 12:00:00 on 2025-10-22.
What is the real-time air quality index for New Castle, Indiana?
The real-time air quality index in New Castle, Indiana is 21, 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 2.647 μg/m3.
What are the current PM10 levels at New Castle, Indiana?
The current PM10 levels in New Castle, Indiana are 11.399 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 0.218 ppm.
What are the current sulfur dioxide (SO2) levels at New Castle, Indiana?
The current sulfur dioxide (SO2) levels in New Castle, Indiana are 1.497 ppb.
What are the current ozone (O3) levels at New Castle, Indiana?
The current ozone (O3) levels at New Castle, Indiana is 22.964 ppm.
What are the current nitrogen dioxide (NO2) levels at New Castle, Indiana?
The current nitrogen dioxide (NO2) levels at New Castle, Indiana is 6.604 ppb.
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