AQIHistoryPM2.5PM10COSO2NO2O3
View aqi DataAQIView weather DataWeather
Live

San Antonio Northwest Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Leon Valley

Last Updated: 20 Aug 2025, 08:39pm (Local Time)

location image
Live AQI
44(AQI-US)
Air Quality is
Good
pm10 :  19 µg/m³
PM2.5 :  8 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in San Antonio Northwest
partly cloudy

37 °C

Partly cloudy
Humidity
Humidity28 %
Wind Speed
Wind Speed12 km/h
UV Index
UV Index0
Last Updated: 20 Aug 2025, 08:39pm (Local Time)
Map

San Antonio Northwest

Major Air Pollutants

San Antonio Northwest

PM2.5's Icon

Particulate Matter(PM2.5)

8µg/m³

PM10's Icon

Particulate Matter(PM10)

19µg/m³

CO's Icon

Carbon Monoxide(CO)

1ppb

SO2's Icon

Sulfur Dioxide(SO2)

0ppb

NO2's Icon

Nitrogen Dioxide(NO2)

11ppb

O3's Icon

Ozone(O3)

47ppb

Trending in United States

Why Air Quality Monitoring and Clean Air is Necessary for Schools?

Why Air Quality Monitoring and Clean Air is Necessary for Schools?

Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025

Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025

How Air Pollution Damages Your Long-Term Financial Health?

How Air Pollution Damages Your Long-Term Financial Health?

Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?

Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?

Case Study: Prana Air’s Air Quality Monitoring Solution for Coal Mining-Trusted by ISM Dhanbad

Case Study: Prana Air’s Air Quality Monitoring Solution for Coal Mining-Trusted by ISM Dhanbad

How Does the Best Air Quality Solution for Airport Improve Operations and Passenger Safety?

How Does the Best Air Quality Solution for Airport Improve Operations and Passenger Safety?

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

AQI Graph

Historical Air Quality Data

San Antonio Northwest

24 Hours
AQI
San Antonio Northwest
AQI
.
19-08-2025Time20-08-2025
24
Min.at 9:54 PM on 19th Aug
56
Max.at 11:09 AM on 20th Aug

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

San Antonio Northwest, Leon Valley, Texas, United States

AQI
Year
.
AQI

Annual AQI Trends

2020
37AQI
2021
38AQI
3%
Rise
2022
38AQI
0%
No Change
2023
40AQI
5%
Rise
2024
41AQI
3%
Rise
2025
42AQI
2%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
3%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedMay, 202472AQI
Least PollutedAugust, 202225AQI

* This data analysis is from year 2020 - 2025

United States's Metro Cities

Air Quality Index

Chicago City AQI

Chicago

19

temp.22°C
hum.66%
Los Angeles City AQI

Los Angeles

49

temp.34°C
hum.28%
Minneapolis City AQI

Minneapolis

35

temp.27°C
hum.53%
Nashville City AQI

Nashville

43

temp.30°C
hum.57%
New Orleans City AQI

New Orleans

54

temp.32°C
hum.70%
New York City City AQI

New York City

19

temp.17°C
hum.90%
San Francisco City AQI

San Francisco

28

temp.17°C
hum.88%
Washington City AQI

Washington

19

temp.25°C
hum.84%

Air Quality Calendar 2025

San Antonio Northwest

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
46
2 Jan
39
3 Jan
52
4 Jan
49
5 Jan
30
6 Jan
27
7 Jan
27
8 Jan
28
9 Jan
31
10 Jan
27
11 Jan
34
12 Jan
33
13 Jan
26
14 Jan
31
15 Jan
36
16 Jan
39
17 Jan
34
18 Jan
33
19 Jan
26
20 Jan
29
21 Jan
30
22 Jan
46
23 Jan
38
24 Jan
33
25 Jan
32
26 Jan
34
27 Jan
30
28 Jan
36
29 Jan
41
30 Jan
33
31 Jan
32
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
38
2 Feb
37
3 Feb
32
4 Feb
32
5 Feb
39
6 Feb
50
7 Feb
50
8 Feb
51
9 Feb
40
10 Feb
43
11 Feb
34
12 Feb
29
13 Feb
26
14 Feb
43
15 Feb
44
16 Feb
31
17 Feb
36
18 Feb
33
19 Feb
24
20 Feb
31
21 Feb
34
22 Feb
34
23 Feb
26
24 Feb
40
25 Feb
35
26 Feb
31
27 Feb
28
28 Feb
33
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
47
2 Mar
41
3 Mar
44
4 Mar
60
5 Mar
56
6 Mar
42
7 Mar
56
8 Mar
60
9 Mar
32
10 Mar
37
11 Mar
37
12 Mar
41
13 Mar
52
14 Mar
54
15 Mar
58
16 Mar
36
17 Mar
38
18 Mar
36
19 Mar
59
20 Mar
33
21 Mar
37
22 Mar
41
23 Mar
46
24 Mar
42
25 Mar
53
26 Mar
49
27 Mar
31
28 Mar
29
29 Mar
44
30 Mar
73
31 Mar
71
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
61
2 Apr
69
3 Apr
74
4 Apr
68
5 Apr
37
6 Apr
26
7 Apr
26
8 Apr
36
9 Apr
34
10 Apr
38
11 Apr
43
12 Apr
41
13 Apr
41
14 Apr
42
15 Apr
40
16 Apr
42
17 Apr
42
18 Apr
52
19 Apr
62
20 Apr
36
21 Apr
27
22 Apr
46
23 Apr
39
24 Apr
58
25 Apr
59
26 Apr
62
27 Apr
48
28 Apr
54
29 Apr
45
30 Apr
55
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
59
2 May
59
3 May
58
4 May
56
5 May
53
6 May
47
7 May
37
8 May
39
9 May
26
10 May
28
11 May
31
12 May
32
13 May
43
14 May
52
15 May
65
16 May
66
17 May
75
18 May
59
19 May
67
20 May
60
21 May
43
22 May
62
23 May
49
24 May
54
25 May
59
26 May
65
27 May
35
28 May
31
29 May
33
30 May
34
31 May
39
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
46
2 Jun
51
3 Jun
62
4 Jun
53
5 Jun
48
6 Jun
55
7 Jun
55
8 Jun
57
9 Jun
52
10 Jun
49
11 Jun
40
12 Jun
30
13 Jun
36
14 Jun
57
15 Jun
55
16 Jun
39
17 Jun
33
18 Jun
53
19 Jun
52
20 Jun
51
21 Jun
30
22 Jun
32
23 Jun
45
24 Jun
31
25 Jun
26
26 Jun
28
27 Jun
34
28 Jun
24
29 Jun
24
30 Jun
41
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jul
41
2 Jul
49
3 Jul
43
4 Jul
46
5 Jul
58
6 Jul
62
7 Jul
55
8 Jul
47
9 Jul
36
10 Jul
48
11 Jul
46
12 Jul
37
13 Jul
38
14 Jul
34
15 Jul
47
16 Jul
57
17 Jul
60
18 Jul
46
19 Jul
45
20 Jul
39
21 Jul
45
22 Jul
40
23 Jul
35
24 Jul
26
25 Jul
24
26 Jul
27
27 Jul
28
28 Jul
46
29 Jul
56
30 Jul
51
31 Jul
46
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Aug
33
2 Aug
30
3 Aug
33
4 Aug
31
5 Aug
36
6 Aug
42
7 Aug
37
8 Aug
39
9 Aug
37
10 Aug
30
11 Aug
33
12 Aug
37
13 Aug
33
14 Aug
63
15 Aug
37
16 Aug
35
17 Aug
56
18 Aug
30
19 Aug
30
20 Aug
-
21 Aug
-
22 Aug
-
23 Aug
-
24 Aug
-
25 Aug
-
26 Aug
-
27 Aug
-
28 Aug
-
29 Aug
-
30 Aug
-
31 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

San Antonio Northwest

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable

As per the current AQI, turn off the air purifier.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

San Antonio Northwest

  • asthma due to air pollution in San Antonio NorthwestAsthma
  • heart due to air pollution in San Antonio NorthwestHeart Issues
  • allergy due to air pollution in San Antonio NorthwestAllergies
  • sinus due to air pollution in San Antonio NorthwestSinus
  • flu due to air pollution in San Antonio NorthwestCold/Flu
  • copd due to air pollution in San Antonio NorthwestChronic (COPD)
asthma due to air pollution in San Antonio Northwest

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

United States

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Jacinto City, United States

63
Moderate
4xabove Standard

2.

Galena Park, United States

63
Moderate
4xabove Standard

3.

South Houston, United States

63
Moderate
4xabove Standard

4.

Jurupa Valley, United States

62
Moderate
4xabove Standard

5.

Highlands, United States

61
Moderate
4xabove Standard

6.

Pasadena, United States

61
Moderate
4xabove Standard

7.

Aldine, United States

60
Moderate
4xabove Standard

8.

Groves, United States

60
Moderate
4xabove Standard

9.

Gunnison, United States

59
Moderate
4xabove Standard

10.

Dayton, United States

59
Moderate
4xabove Standard

Last Updated: 21 Aug 2025, 01:39 AM

AQI City Rankings

Air Quality Solutions For San Antonio Northwest

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for San Antonio Northwest

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city for San Antonio Northwest

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for San Antonio Northwest

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels for San Antonio Northwest

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants for San Antonio Northwest

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants for San Antonio Northwest

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center for San Antonio Northwest

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot for San Antonio Northwest

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores for San Antonio Northwest

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for San Antonio Northwest

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites for San Antonio Northwest

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals for San Antonio Northwest

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for San Antonio Northwest

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks for San Antonio Northwest

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema for San Antonio Northwest

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates for San Antonio Northwest

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

San Antonio Northwest's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for San Antonio Northwest
Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store
Get it onGoogle Play
Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality FAQs

at San Antonio Northwest

Frequently Asked Questions About Air Quality

What is the current AQI level in San Antonio Northwest?

The current real-time AQI level in San Antonio Northwest is 44 (Good). This was last updated 20 Aug 2025, 08:39pm (Local Time).

When was the best AQI level in San Antonio Northwest in the last 24 hours?

The best AQI level was 24 (Good) at 9:54 PM, Aug 19, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in San Antonio Northwest in the last 24 hours?

The worst AQI level was 56 (Moderate) at 11:09 AM, Aug 20, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in San Antonio Northwest during last 24 hours?

The AQI levels in San Antonio Northwest have been fluctuating throughout the last 24 hours. The levels have increased by highest 56 at 11:09 AM, Aug 20, 2025 (Local Time), lowest 24 at 9:54 PM, Aug 19, 2025 (Local Time).

What actions are recommended as per the current AQI level in San Antonio Northwest?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?

Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?

13 Aug 2025Shakshi
How Air Pollution Damages Your Long-Term Financial Health?

How Air Pollution Damages Your Long-Term Financial Health?

12 Aug 2025Shakshi
Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

7 Aug 2025Shakshi
DU Cut-Off 2025: How’s the Air Near Your Dream College?

DU Cut-Off 2025: How’s the Air Near Your Dream College?

6 Aug 2025Shakshi
Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

1 Aug 2025Shakshi
Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

31 Jul 2025Shakshi
New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

26 Jul 2025Gyane Haobijam
Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?

Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?

26 Jul 2025Shakshi
Big Dreams, Toxic Air: Why a Father’s ‘No’ to Hansraj College Over Delhi Pollution is a Warning for India

Big Dreams, Toxic Air: Why a Father’s ‘No’ to Hansraj College Over Delhi Pollution is a Warning for India

24 Jul 2025Shakshi
What Is the Real Impact of Air Pollution on Property Rates in India?

What Is the Real Impact of Air Pollution on Property Rates in India?

19 Jul 2025Shakshi
Prana Air Logo

Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
Prana Air Logo

Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
Prana Air Logo

Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor