Hollister
 
Data courtesy of:
 

AQI Forecast - http://files.airnowtech.org/airnow/today/forecast_aqi_20150805_ca_nv.jpg
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 - http://files.airnowtech.org/airnow/today/cur_aqi_ca_nv.jpg
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - http://files.airnowtech.org/airnow/today/anim_aqi_ca_nv.gif
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
 
State Air Quality Resources
Amador County Air Pollution Control District
American Lung Association (ALA) of California
Antelope Valley Air Quality Management District
BAAQMD Spare the Air 2002
Bay Area Air Quality Management District (BAAQMD)
Butte County Air Pollution Control District
California Air Resources Board (CARB)
California Environmental Protection Agency
California Environmental Protection Agency - Contact Us
Colusa County Air Pollution Control District
El Dorado County Air Quality Management District
Feather River Air Quality Management District
Glenn County Air Pollution Control District
Kern County Air Pollution Control District
Mendocino County Air Quality Management District
Mojave Desert Air Quality Management District
Monterey Bay Unified Air Pollution Control District
North Coast Unified Air Quality Management District
Northern Sierra Air Quality Management District
Placer County Air Pollution Control District
Sacramento Metro Air Quality Management District
Sacramento Metropolitan Air Quality Management District
San Diego County Air Pollution Control District
San Joaquin Valley Air Pollution Control District
San Luis Obispo County Air Pollution Control District
Santa Barbara County Air Pollution Control District
Shasta County Air Quality Management District
South Coast Air Quality Management District
Ventura County Air Pollution Control District
Yolo-Solano Air Quality Management District
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
Good Good
Health Message: None
Air Quality Index (AQI)
Good Good
Health Message: None
AQI - Pollutant Details
Particles (PM10)
Good
Good
Particles (PM2.5)
Good
Good
Ozone
Good
Good
Particles (PM10)
Good
Good
Particles (PM2.5)
Good
Good
Ozone
Good
Good
Forecast Discussion: Discussion for August 3 to 8 – Only minor day to day changes expected as an offshore low gradually strengthens and drifts toward the coast while high pressure over the 4-Corners states gradually weakens and drifts eastward. The persistence of a general troughing pattern off the West Coast this summer should continue to be good for air quality with air quality for ozone, PM2.5 and PM10 expected to remain in the GOOD air quality category of EPA’s Air Quality Index through the forecast period. In fact, surprisingly there have been no exceedances of any state or federal ozone air quality standard so far this summer in our entire tri-county region, which is an unusual but welcome benchmark so far as we pass the halfway mark through the ozone season. Please note, due to the long-term drought, CAL FIRE has suspended open burning in all State Responsibility Areas of Monterey, San Benito and Santa Cruz Counties. During these extremely dry conditions, residents are also cautioned about the high risk of causing a wildfire when using any ignition source near dry grass and brush.

Current Conditions
Air Quality Index (AQI)
observed at 4:00 PDT
3
Good
Health Message: None
AQI - Pollutant Details
Particles (PM10) 3 Good
Particles (PM2.5) 0 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)