Bexar, Texas Air Quality

Bexar County, Texas (TX)

→ Stableover 10 years

Air Quality Grade

51/100

Current Median AQI

Moderate

5-Year Avg AQI

-2

10-Year Change

Better

Unhealthy Days/yr

5-year average

PM2.5

Primary Pollutant

Fine Particulate Matter (PM2.5)

10-Year AQI Trend

The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days).

Air Quality Day Breakdown

Number of days per year in each EPA AQI category. Green = Good (AQI 0-50), Yellow = Moderate (51-100), Orange = Unhealthy for Sensitive Groups (101-150), Red = Unhealthy or worse (151+).

Year-by-Year Data

Year	Median AQI	90th Pct	Max AQI	Good Days	Moderate	Unhealthy+	Pollutant
2023	52	79	309	164	189	12	PM2.5
2022	55	80	214	116	236	13	PM2.5
2021	55	80	147	113	240	12	PM2.5
2020	55	80	160	119	237	10	PM2.5
2019	55	74	175	117	242	6	PM2.5
2018	49	71	166	187	167	11	PM2.5
2017	50	70	203	186	171	6	PM2.5
2016	49	67	164	199	161	6	PM2.5
2015	53	78	156	139	212	14	PM2.5
2014	54	77	136	129	230	6	PM2.5

What This Means for Bexar County Residents

Bexar, Texas has received an Air Quality Grade of C (51/100) based on a decade of EPA monitoring data. The current median AQI of 52 falls in the "Moderate" range.

The primary pollutant affecting this area is Fine Particulate Matter (PM2.5). Over the past 5 years, this area has averaged 11 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.