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Air Quality Data (PST) Query Tool
Air Quality Data (PST) Query Tool
This page last reviewed November 20, 2014
Daily Data
Hourly Data
Special Reports
Step 1:
Select a Parameter
Benzene
Black Carbon
Carbon Monoxide
Carbon Dioxide
COH (Soiling Index)
Hydrogen Sulfide
Light Scattering
Methane
Nitrogen Dioxide
Nitric Oxide
NOx
NOy
Nonmethane Hydrocarbons
Ozone
PM2.5
PM10 (TEOM)
PM10 (BAM)
PM10 (Local)
PM10 (Standard)
Sulfur Dioxide
Total Hydrocarbons
ppm
ppb
Step 2:
Select an End Date and Time
Date:
2024
2023
2022
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2020
2019
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2015
2014
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2000
1999
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1996
1995
1994
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1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
January
February
March
April
May
June
July
August
September
October
November
December
1
2
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13
14
15
16
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18
19
20
21
22
23
24
25
26
27
28
29
30
31
Time:
Morning
Mid-Day
Evening
Whole Day
Step 3:
Select One
--COUNTY--
Alameda
Alpine
Amador
Butte
Calaveras
Colusa
Contra Costa
Del Norte
El Dorado
Fresno
Glenn
Humboldt
Imperial
Inyo
Kern
Kings
Lake
Lassen
Los Angeles
Madera
Marin
Mariposa
Mendocino
Merced
Modoc
Mono
Monterey
Napa
Nevada
Orange
Placer
Plumas
Riverside
Sacramento
San Benito
San Bernardino
San Diego
San Francisco
San Joaquin
San Luis Obispo
San Mateo
Santa Barbara
Santa Clara
Santa Cruz
Shasta
Sierra
Siskiyou
Solano
Sonoma
Stanislaus
Sutter
Tehama
Trinity
Tulare
Tuolumne
Ventura
Yolo
Yuba
--AIR BASIN--
Great Basin Valleys
Lake County
Lake Tahoe
Mexico Sites
Mojave Desert
Mountain Counties
North Central Coast
North Coast
Northeast Plateau
Sacramento Valley
Salton Sea
San Diego
San Francisco Bay Area
San Joaquin Valley
South Central Coast
South Coast
--PART OF STATE--
North
Central
South
All
Step 4:
Select a Type of Report
Hourly Data
Latest Data Summary by Air Basin
Step 5:
Select the Sort Order
Basin/County/Site
Alphabetical by site
County/Site
North to South
Identify Data Changes Since Last Air Quality DVD or Data Download