Air Quality in Galveston, Texas

62
Current AQI: Moderate
Primary pollutant: PM2.5 · Updated 03/30/26
44
Median AQI (2024)
159
Max AQI (2024)
↑ worsening
10-Year Trend
Ozone
Primary Pollutant
245
Good Days (2024)
8
Monitoring Stations

AQI Trend (Median)

Air Quality Days by Category

Annual Summary

YearMedian AQIMax AQI Good DaysModerate DaysUnhealthy Days Ozone DaysPM2.5 Days
2024 44 1592451098 224136
2023 51 15917716421 170187
2022 46 1592361227 184181
2021 43 122259993 194163
2020 44 1432381193 198159
2019 43 1362471078 215143
2018 34 2023064810 27187
2017 41 143265856 235120
2016 44 1472561036 252110
2015 44 1902559218 220143

Recent Daily AQI

DateAQICategoryPrimary Pollutant
Dec 31, 2024 37 GoodPM2.5
Dec 30, 2024 44 GoodOzone
Dec 29, 2024 38 GoodOzone
Dec 28, 2024 35 GoodPM2.5
Dec 27, 2024 52 ModeratePM2.5
Dec 26, 2024 47 GoodPM2.5
Dec 25, 2024 41 GoodOzone
Dec 24, 2024 39 GoodOzone
Dec 23, 2024 42 GoodOzone
Dec 22, 2024 39 GoodOzone
Dec 21, 2024 33 GoodPM2.5
Dec 20, 2024 47 GoodPM2.5
Dec 19, 2024 50 GoodPM2.5
Dec 18, 2024 31 GoodOzone
Dec 17, 2024 29 GoodOzone
Dec 16, 2024 29 GoodOzone
Dec 15, 2024 34 GoodOzone
Dec 14, 2024 48 GoodPM2.5
Dec 13, 2024 39 GoodOzone
Dec 12, 2024 42 GoodOzone
Dec 11, 2024 30 GoodOzone
Dec 10, 2024 52 ModeratePM2.5
Dec 9, 2024 48 GoodPM2.5
Dec 8, 2024 54 ModeratePM2.5
Dec 7, 2024 37 GoodPM2.5
Dec 6, 2024 23 GoodOzone
Dec 5, 2024 23 GoodOzone
Dec 4, 2024 45 GoodPM2.5
Dec 3, 2024 45 GoodPM2.5
Dec 2, 2024 52 ModeratePM2.5
Dec 1, 2024 41 GoodPM2.5
Nov 30, 2024 35 GoodOzone
Nov 29, 2024 34 GoodPM2.5
Nov 28, 2024 36 GoodPM2.5
Nov 27, 2024 46 GoodPM2.5
Nov 26, 2024 42 GoodPM2.5
Nov 25, 2024 35 GoodOzone
Nov 24, 2024 58 ModerateOzone
Nov 23, 2024 84 ModerateOzone
Nov 22, 2024 49 GoodOzone
Nov 21, 2024 36 GoodOzone
Nov 20, 2024 19 GoodPM2.5
Nov 19, 2024 58 ModerateOzone
Nov 18, 2024 54 ModeratePM2.5
Nov 17, 2024 51 ModeratePM2.5
Nov 16, 2024 43 GoodOzone
Nov 15, 2024 43 GoodOzone
Nov 14, 2024 37 GoodOzone
Nov 13, 2024 58 ModerateOzone
Nov 12, 2024 45 GoodOzone
Nov 11, 2024 37 GoodPM2.5
Nov 10, 2024 29 GoodPM2.5
Nov 9, 2024 28 GoodPM2.5
Nov 8, 2024 44 GoodPM2.5
Nov 7, 2024 41 GoodPM2.5
Nov 6, 2024 42 GoodPM2.5
Nov 5, 2024 32 GoodOzone
Nov 4, 2024 54 ModeratePM2.5
Nov 3, 2024 47 GoodPM2.5
Nov 2, 2024 41 GoodPM2.5
Nov 1, 2024 42 GoodPM2.5
Oct 31, 2024 38 GoodPM2.5
Oct 30, 2024 48 GoodPM2.5
Oct 29, 2024 46 GoodPM2.5
Oct 28, 2024 49 GoodPM2.5
Oct 27, 2024 44 GoodOzone
Oct 26, 2024 40 GoodOzone
Oct 25, 2024 40 GoodOzone
Oct 24, 2024 45 GoodOzone
Oct 23, 2024 45 GoodOzone
Oct 22, 2024 45 GoodOzone
Oct 21, 2024 58 ModerateOzone
Oct 20, 2024 50 GoodPM2.5
Oct 19, 2024 45 GoodOzone
Oct 18, 2024 44 GoodOzone
Oct 17, 2024 44 GoodOzone
Oct 16, 2024 39 GoodPM2.5
Oct 15, 2024 46 GoodOzone
Oct 14, 2024 44 GoodOzone
Oct 13, 2024 51 ModerateOzone
Oct 12, 2024 67 ModerateOzone
Oct 11, 2024 100 ModerateOzone
Oct 10, 2024 100 ModerateOzone
Oct 9, 2024 50 GoodOzone
Oct 8, 2024 53 ModeratePM2.5
Oct 7, 2024 64 ModerateOzone
Oct 6, 2024 52 ModeratePM2.5
Oct 5, 2024 31 GoodOzone
Oct 4, 2024 25 GoodOzone
Oct 3, 2024 50 GoodOzone

Monitoring Stations

GALVESTON ISLAND
Galveston
Est. 1993-12-01
29.2633, -94.8566
Galveston 99th Street
Galveston
Est. 2007-03-20
29.2545, -94.8613
NE OF 17TH STREET N & 5TH AVE N INTERSECTION
Texas City
Est. 1979-01-01
29.3900, -94.9194
SE OF CALDER DRIVE & FM 518 INTERSECTION
League City
Est. 1999-01-01
29.5039, -95.1044
Superfund Site
Friendswood
Est. 1991-01-03
29.1139, -95.2327
Texas City Ball Park
Texas City
Est. 1997-10-20
29.3852, -94.9315
Texas City Fire Station
Texas City
Est. 1972-01-01
29.3844, -94.9308
WEST OF 15TH AVE. N & NORTH LOGAN INTERSECTION
Texas City
Est. 1974-01-01
29.3986, -94.9333

Frequently Asked Questions

What is the air quality in Galveston, Texas?

Based on EPA data from 2024, Galveston has a median Air Quality Index (AQI) of 44, which is classified as "Good." The primary pollutant is Ozone. Over the past 10 years, air quality has been worsening.

Is Galveston a good place to live for air quality?

Galveston has a 10-year average median AQI of 43. In 2024, there were 245 days with "Good" air quality and 8 days with unhealthy conditions. No special precautions are needed for most people.

What pollutants affect Galveston the most?

The primary pollutant driving the AQI in Galveston is Ozone. This is monitored by 8 active EPA stations in the county. Other pollutants tracked include ozone, PM10, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

How many air quality monitoring stations are in Galveston?

There are 8 active EPA monitoring stations in Galveston, Texas. These stations continuously measure pollutant levels and contribute to the daily AQI calculations.