South 1st Street Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in El Cajon
Last Updated: 2026-07-17 15:11:02 (Local Time)
27 °C
Sunny
Currently, El Cajon ranks 842nd among the cities with the highest AQI levels in the world.
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South 1st Street
AQI (US) Trends - Annual Air Quality Changes
South 1st Street, El Cajon, California, United States
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Health Advice For People Living In
South 1st Street
0Cigarettes per day
Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.
Source:
Berkeley Earth
Solutions for Current AQI (US)
Prevent Health Problems: Understand Your Risks
South 1st Street
Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)
Most Polluted Cities 2026
United States
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Lansing, Michigan
Severe
16xabove Standard
2.
Steubenville, Ohio
Severe
14xabove Standard
3.
Tecumseh, Michigan
Severe
13xabove Standard
4.
Toledo, Ohio
Severe
13xabove Standard
5.
Canton, Ohio
Severe
13xabove Standard
6.
Akron, Ohio
Severe
12xabove Standard
7.
Grand Rapids, Michigan
Severe
12xabove Standard
8.
Spokane Valley, Washington
Severe
12xabove Standard
9.
Ypsilanti, Michigan
Severe
11xabove Standard
10.
River Rouge, Michigan
Severe
11xabove Standard
Last Updated: 17 Jul 2026, 10:20 PM
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Frequently Asked Questions About Air Quality
1. What is the current AQI (US) level in South 1st Street?
1. What is the current AQI (US) level in South 1st Street?
The current real-time AQI (US) level in South 1st Street is 56 (Moderate). This was last updated 2026-07-17 15:11:02 (Local Time).
2. When was the best AQI (US) level in South 1st Street in the last 24 hours?
2. When was the best AQI (US) level in South 1st Street in the last 24 hours?
The best AQI (US) level was 27 (Good) at 1:01 AM (Local Time) during the last 24 hours.
3. When was the worst AQI (US) level in South 1st Street in the last 24 hours?
3. When was the worst AQI (US) level in South 1st Street in the last 24 hours?
The worst AQI (US) level was 56 (Moderate) at 11:01 AM (Local Time) during the last 24 hours.
4. What is the current trend of AQI (US) levels in South 1st Street during last 24 hours?
4. What is the current trend of AQI (US) levels in South 1st Street during last 24 hours?
The AQI (US) levels in South 1st Street have been fluctuating throughout the last 24 hours. The levels have increased by highest 56 at 11:01 AM (Local Time), lowest 27 at 1:01 AM (Local Time).
5. What actions are recommended as per the current AQI (US) level in South 1st Street?
5. What actions are recommended as per the current AQI (US) level in South 1st Street?
Current AQI (US) levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.
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