Real-time air quality index in Harlingen, Texas today
Stay updated with real-time air quality in Harlingen, Texas 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)
54
Moderate
Harlingen, Texas
Last updated: ... (Local time)
Common air pollutants in Harlingen, Texas
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
10.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
35.44 μg/m³
0
55
155
255
425
605+
Ozone (O3)
23.07 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
1.00 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
3.45 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Harlingen, Texas
Harlingen, Texas
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Harlingen, Texas air quality map: Real-time AQI near you
Air quality in nearby cities
San Benito, Texas
AQI 54
Moderate
10.82μg/m³
PM2.5
38.24μg/m³
PM10
24.50ppb
O3
1.00ppb
SO2
3.50ppb
NO2
0.20ppm
CO
Mercedes, Texas
AQI 54
Moderate
11.28μg/m³
PM2.5
51.59μg/m³
PM10
31.31ppb
O3
1.00ppb
SO2
3.47ppb
NO2
0.20ppm
CO
Weslaco, Texas
AQI 54
Moderate
11.39μg/m³
PM2.5
52.30μg/m³
PM10
36.23ppb
O3
1.00ppb
SO2
4.67ppb
NO2
0.20ppm
CO
Raymondville, Texas
AQI 54
Moderate
11.23μg/m³
PM2.5
48.48μg/m³
PM10
30.13ppb
O3
1.00ppb
SO2
3.51ppb
NO2
0.20ppm
CO
Donna, Texas
AQI 54
Moderate
11.41μg/m³
PM2.5
52.69μg/m³
PM10
39.58ppb
O3
1.00ppb
SO2
4.73ppb
NO2
0.20ppm
CO
Brownsville, Texas
AQI 56
Moderate
11.90μg/m³
PM2.5
53.98μg/m³
PM10
28.97ppb
O3
0.99ppb
SO2
3.42ppb
NO2
0.20ppm
CO
How accurate is Texas, USA air quality data?
Air quality measurements for Texas, 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 Harlingen, Texas updated?
Air quality data for Harlingen, Texas is updated on an hourly basis.
When did Harlingen, Texas experience the worst air quality in the last 24 hours?
The worst air quality in Harlingen, Texas was recorded at 08:00:00 on 2025-10-22.
When did Harlingen, Texas have its best air quality in the last 24 hours?
The best air quality in Harlingen, Texas was recorded at 01:00:00 on 2025-10-22.
What is the real-time air quality index for Harlingen, Texas?
The real-time air quality index in Harlingen, Texas is 54, currently categorized as Moderate.
Which pollutant is found most often in Harlingen, Texas?
The most common pollutant in Harlingen, Texas is PM2.5.
What can I do if the air quality in Harlingen, Texas is poor?
If the air quality in Harlingen, Texas is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Harlingen, Texas?
The measured PM2.5 levels in Harlingen, Texas at present are 10.612 μg/m3.
What are the current PM10 levels at Harlingen, Texas?
The current PM10 levels in Harlingen, Texas are 35.438 μg/m3.
What are the current carbon monoxide (CO) levels at Harlingen, Texas?
The current carbon monoxide (CO) level in Harlingen, Texas is 0.199 ppm.
What are the current sulfur dioxide (SO2) levels at Harlingen, Texas?
The current sulfur dioxide (SO2) levels in Harlingen, Texas are 0.997 ppb.
What are the current ozone (O3) levels at Harlingen, Texas?
The current ozone (O3) levels at Harlingen, Texas is 23.067 ppm.
What are the current nitrogen dioxide (NO2) levels at Harlingen, Texas?
The current nitrogen dioxide (NO2) levels at Harlingen, Texas is 3.448 ppb.
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