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Elev 3488
39.94 °N,
120.95 °W
43
F
East Quincy Station
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Quincy, California
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Air Quality Index
We track six criteria pollutants considered harmful to public health and the environment. Those include carbon monoxide, nitrogen dioxide, ozone, particulate matter (10µm or less and 2.5µm or less), as well as sulfur dioxide.
The Air Quality Index (AQI) is the official index for air quality across the United States. The AQI ranges from 0 to 500. The higher the AQI value, the greater the level of air pollution and the greater the health concern.
Good
Hazardous
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500
Today:
Good
Help keep air quality good by biking to work and enjoying outdoor activities.
AQI:
20
Dominant Pollutant:
PM2.5
Tiny particles called PM2.5 irritate the eyes, nose, and respiratory system. Long-term exposure aggravates heart and lung disease.
AQI Source: EPA AirNow - Northern Sierra AQMD
Air Quality Forecast:
Main Pollutant:
Monday
No Data
Tuesday
No Data
Wednesday
No Data
Air Quality & Health Tips
Carpooling reduces particulates in the air and additional unhealthy pollutants by half!
Pollen counts are highest on warm days. Best times to be outdoors is in the early morning when dew is still on the plants.
U.S. Counties Health Map & Air Pollution Monitors
Good
Moderate
Unhealthy if Sensitive
Unhealthy
Very Unhealthy
Hazardous
0-50
51-100
101-150
151-200
201-300
301-500
Fine Particulate Matter PM2.5*
Is an air pollutant that is a concern for people's health when levels are high. PM2.5 are tiny particles in the air which reduce visibility and cause the air to appear hazy when levels are elevated.
Learn more about air pollution and your health
Nearby Pollution Monitors
ID
Location
Time
Type
Level (µg/m3)
UV Index
The UV Index is a forecast of the probable intensity of skin damaging ultraviolet radiation reaching the surface during the solar noon hour. The greater the UV Index, the greater the amount of skin damaging UV radiation. The threshold for skin damage is dependent on several factors, including skin tone. Note that clouds do not block most UV light.