Live 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)
52
Moderate
Harlingen, Texas
Last updated: ... (Local time)
Major air pollutants in Harlingen, Texas
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
9.76 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
43.90 μg/m³
0
55
155
255
425
605+
Ozone (O3)
27.00 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
1.38 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
6.46 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
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
10.97μg/m³
PM2.5
56.86μg/m³
PM10
26.84ppb
O3
2.57ppb
SO2
5.89ppb
NO2
0.25ppm
CO
Mercedes, Texas
AQI 51
Moderate
9.47μg/m³
PM2.5
56.46μg/m³
PM10
26.32ppb
O3
2.60ppb
SO2
5.90ppb
NO2
0.25ppm
CO
Weslaco, Texas
AQI 51
Moderate
9.47μg/m³
PM2.5
55.43μg/m³
PM10
26.09ppb
O3
2.61ppb
SO2
5.91ppb
NO2
0.25ppm
CO
Raymondville, Texas
AQI 54
Moderate
9.91μg/m³
PM2.5
61.02μg/m³
PM10
26.17ppb
O3
2.60ppb
SO2
5.90ppb
NO2
0.25ppm
CO
Donna, Texas
AQI 49
Good
9.01μg/m³
PM2.5
45.09μg/m³
PM10
25.76ppb
O3
2.61ppb
SO2
5.91ppb
NO2
0.25ppm
CO
Brownsville, Texas
AQI 66
Moderate
16.94μg/m³
PM2.5
64.83μg/m³
PM10
24.38ppb
O3
2.53ppb
SO2
5.88ppb
NO2
0.25ppm
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 02:00:00 on 2025-06-06.
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 2025-06-06.
What is the real-time air quality index for Harlingen, Texas?
The real-time air quality index in Harlingen, Texas is 52, 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 9.757 μg/m3.
What are the current PM10 levels at Harlingen, Texas?
The current PM10 levels in Harlingen, Texas are 43.902 μg/m3.
What are the current carbon monoxide (CO) levels at Harlingen, Texas?
The current carbon monoxide (CO) level in Harlingen, Texas is 0.316 ppm.
What are the current sulfur dioxide (SO2) levels at Harlingen, Texas?
The current sulfur dioxide (SO2) levels in Harlingen, Texas are 1.378 ppb.
What are the current ozone (O3) levels at Harlingen, Texas?
The current ozone (O3) levels at Harlingen, Texas is 26.998 ppm.
What are the current nitrogen dioxide (NO2) levels at Harlingen, Texas?
The current nitrogen dioxide (NO2) levels at Harlingen, Texas is 6.46 ppb.
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