San Francisco Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in California
Last Updated: 2025-01-14 02:13:39 AM
11 °C
Partly cloudy
MapSan Francisco
AQI Graph
Historical Air Quality Data
San Francisco
AQI Trends - Annual Air Quality Changes
San Francisco, California, United States
Annual AQI Trends
Most & Least Polluted Years
* This data analysis is from year 2020 - 2025
San Francisco's Locations
Real-time Air Pollution Level
United States's Metro Cities
Air Quality Index
Air Quality Calendar 2025
San Francisco
Health Advice For People Living In
San Francisco
0Cigarettes per day
Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.
Source:
Berkeley Earth
Solutions for Current AQI
Air PurifierTurn Off
Car FilterAdvisable
N95 MaskAdvisable
Stay IndoorAdvisable
As per the current AQI, turn off the air purifier.
Get an Air PurifierPrevent Health Problems: Understand Your Risks
San Francisco
Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)
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.
Most Polluted Cities 2025
United States
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Susanville, United States
2.
Cold Springs, United States
3.
Bishop, United States
4.
Homestead, United States
5.
Altamont, United States
6.
Guadalupe, United States
7.
Cottage Grove, United States
8.
Tolleson, United States
9.
Granite Falls, United States
10.
Fresno, United States
Last Updated: 2025-01-14 02:28:20 AM
AQI City RankingsAir Quality Solutions For San Francisco
Explore the solutions of air quality monitoring & clean air.
Here are some applications that you can go through to find out the solutions.
San Francisco's AQI Data Analytics Solutions
Air quality data monitoring platforms
Mobile App
Smart TV App
Web Dashboard
API
Widgets
Your area’s real-time data with detailed parameters.
Personalized health advice as per current AQI.
Analytical data to identify trends and conditions.
Connect and control your air quality devices.
Air Quality FAQs
at San Francisco
Frequently Asked Questions About Air Quality
What is the current AQI level in San Francisco?
The current real-time AQI level in San Francisco is 40 (Good). This was last updated 2025-01-14 02:13:39 AM.
When was the best AQI level in San Francisco in the last 24 hours?
The best AQI level was 21 (Good) at 8:13 PM, Jan. 13, 2025 during the last 24 hours.
When was the worst AQI level in San Francisco in the last 24 hours?
The worst AQI level was 40 (Good) at 2:13 AM during the last 24 hours.
What is the current trend of AQI levels in San Francisco during last 24 hours?
The AQI levels in San Francisco have been fluctuating throughout the last 24 hours. The levels have increased by highest 40 at 2:13 AM, lowest 21 at 8:13 PM, Jan. 13, 2025.
What actions are recommended as per the current AQI level in San Francisco?
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.
