Stay updated with real-time air quality in Round Rock, 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)
48
Good
Round Rock, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
51.79 μg/m³
0
55
155
255
425
605+
26.95 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
6.91 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Round Rock, Texas
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AQI 40
Good
7.16μg/m³
PM2.5
42.63μg/m³
PM10
26.23ppb
O3
0.71ppb
SO2
6.91ppb
NO2
0.38ppm
CO
AQI 38
Good
7.38μg/m³
PM2.5
40.83μg/m³
PM10
26.00ppb
O3
0.75ppb
SO2
6.91ppb
NO2
0.38ppm
CO
AQI 33
Good
6.02μg/m³
PM2.5
31.89μg/m³
PM10
25.83ppb
O3
0.70ppb
SO2
6.92ppb
NO2
0.38ppm
CO
AQI 33
Good
5.81μg/m³
PM2.5
32.75μg/m³
PM10
26.17ppb
O3
0.68ppb
SO2
6.92ppb
NO2
0.38ppm
CO
AQI 38
Good
6.70μg/m³
PM2.5
31.97μg/m³
PM10
25.96ppb
O3
0.69ppb
SO2
6.90ppb
NO2
0.39ppm
CO
AQI 44
Good
8.12μg/m³
PM2.5
28.04μg/m³
PM10
27.97ppb
O3
0.67ppb
SO2
6.90ppb
NO2
0.39ppm
CO
The air quality data for Texas, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Round Rock, Texas are available every hour.
Round Rock, Texas experienced its worst air quality at 12:00:00, 2026-03-05.
The best air quality in Round Rock, Texas was observed at 03:00:00 on 2026-03-05.
The air quality in Round Rock, Texas right now is Good, with an AQI of 48.
In Round Rock, Texas, PM10 is the most frequently found pollutant.
When air quality in Round Rock, Texas is compromised, staying indoors and wearing a mask can reduce health risks.
Round Rock, Texas currently has a PM2.5 concentration of 6.607 μg/m3.
Round Rock, Texas currently has a PM10 concentration of 51.787 μg/m3.
The current carbon monoxide (CO) level in Round Rock, Texas is 0.384 ppm.
The current sulfur dioxide (SO2) concentration in Round Rock, Texas is 0.665 ppb.
Round Rock, Texas currently has an ozone (O3) concentration of 26.955 ppm.
The current level of nitrogen dioxide (NO2) in Round Rock, Texas is 6.911 ppb.
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