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The California Air Resources Board has released a new DVD-ROM in February 2008 entitled "2008 Air Quality
Data DVD" with 27 years of air quality data (1980-2006). For a description of the DVD, go to "California
Air Quality Data Available on DVD-ROM". We are providing files in various formats for hourly, daily, and
annual data from 1980 to 2006 listed in the file documentation: file08dvd.pdf
(pdf - 62k). If you would like to download these ASCII, Dbf, Comma-delimited, ACCESS 2003, or EXCEL files,
proceed to the table below. The daily monitor-based PM10 and PM2.5 data are available in
both comma-delimited and EXCEL format, and the hourly monitor-based PM10 and PM2.5 data are
available in comma-delimited format except for PM10 local conditions (BAM10) which is also
available in EXCEL format. Most of the hourly PM10 and PM2.5 files had more records in a
year than EXCEL could display, so these EXCEL files were not provided. The product names listed on this page may
be registered trademarks.
After downloading each data file, double-click on the zipped executable file. The window for the Winzip Self-Extractor
will appear: click on the "Browse " button to select the location for storing the file on your hard drive,
then click on the "Unzip" button.
For questions about these data, please contact Bob Weller by phone at (916) 322-6158 or by email at aqdcd@arb.ca.gov.
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CALIFORNIA AIR QUALITY DATA FOR THE YEARS 1980-2006
(Download each zip compressed file separately)
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Data Years
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File Description including:
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Data
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1980-06
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2007 Air Quality Data DVD Readme |
36K
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1980-06
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What's New? (2008 Air Qualtiy Data DVD) |
8K
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1980-06
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File Documentation |
54K
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1980-06
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Dbf Documentation |
13K
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1980-06
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Glossary |
27K
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1994-06
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NMOC Data Documentation |
13K
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1994-06
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NMOC Limits of Detection |
139K
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1990-06
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ARB Toxics Documentation |
14K
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1990-06
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ARB Toxics Limits of Detection |
53K
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2000-06
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PM2.5 Speciation Description |
11K
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2000-06
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PM2.5 Chemical Species |
13K
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1980-06
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BASINS.DBF (Basin Information, Including Basin Letter) |
70K
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1980-06
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PA8.DBF (8-hr Ozone Planning Area Information) |
70K
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1980-06
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LOCATION.DBF (Sites, Air Basins, 8-hr Ozone Planning Areas) |
0.14M
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1980 Hrly
|
CO, NO, NO2, NMHC, NOx, O3 |
5.33M
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1981 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
5.55M
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1982 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
5.33M
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|
1983 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
5.04M
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1984 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
5.27M
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1985 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
5.32M
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|
1986 Hrly
|
CO, NO, NO2, NMHC, NOx, O3 |
5.55M
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|
1987 Hrly
|
CO, NO, NO2, NMHC, NOx, O3 |
5.89M
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1988 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
6.38M
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1989 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
6.99M
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1990 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
5.69M
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1991 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
6.99M
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1992 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
7.20M
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1993 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
8.05M
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1994 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
11.3M
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1995 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
11.5M
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|
1996 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
11.1M
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1997 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
11.1M
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1998 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
10.9M
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1999 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
9.4M
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|
2000 Hrly
|
CO, NO, NO2, NMHC, NOx, O3 |
11.0M
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2001 Hrly
|
CO, NO, NO2, NMHC, NOx, O3 |
9.4M
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2002 Hrly
|
CO, NO, NO2, NMHC, NOx, O3 |
9.3M
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2003 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
9.3M
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2004 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
8.9M
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2005 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
8.7M
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2006 Hrly
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CO, NO, NO2, NMHC, NOx, O3 |
8.0M
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1980-84 Hrly
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CH4, NMHC, THC |
7.27M
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1985-89 Hrly
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CH4, NMHC, THC |
7.41M
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1990-94 Hrly
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CH4, NMHC, THC |
6.93M
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1995-00 Hrly
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CH4, NMHC, THC |
6.51M
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2001-04 Hrly
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CH4, NMHC, THC |
2.86M
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2005-06 Hrly
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CH4, NMHC, THC |
1.46M
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1980-06 Hrly
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COH2HR |
11.1M
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1980-06 Hrly
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LTSC |
8.69M
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1980-84 Hrly
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SO2 |
7.84M
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1985-89 Hrly
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SO2 |
8.72M
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1990-94 Hrly
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SO2 |
7.78M
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1995-00 Hrly
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SO2 |
6.82M
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2001-04 Hrly
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SO2 |
4.29M
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2005-06 Hrly
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SO2 |
1.65M
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1980-00 Hrly
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H2S |
4.75M
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2001-06 Hrly
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H2S |
1.71M
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1994-06 Hrly
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NMOC |
4.86M
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1994-06 Hrly
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NMOC Access 2003 database |
5.96M
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1993-06 Hrly
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PM10 Std. Conditions (PM10 Mixture) |
7.89M
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2003-06 Hrly
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PM10 Local Conditions (BAM10) |
0.20M
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2003-06 Hrly
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PM10 Local Conditions (BAM10) in Excel |
0.57M
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1999-06 Hrly
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PM2.5 Local Conditions (BAM2.5) |
4.10M
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1980-06 Dly
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DLYGAS.DBF |
51.0M
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1980-84 Dly
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DLYGAS |
6.23M
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1985-89 Dly
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DLYGAS |
6.92M
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1990-94 Dly
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DLYGAS |
8.18M
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1995-99 Dly
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DLYGAS |
9.85M
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|
2000-04 Dly
|
DLYGAS |
9.56M
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2005-06 Dly
|
DLYGAS |
3.45M
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|
2000-06 Dly
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PM2.5 Speciation Database downloaded from the U.S. EPA Air Qualtiy System |
1.69M
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1994-06 Dly
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NMOC |
1.51M
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1980-06 Dly
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DLYOZPA8.DBF (Daily 8-hr ozone planning area data) |
22.9M
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1980-06 Dly
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DLYPM.DBF (No PM10 or PM2.5mass data) |
12.3M
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1980-89 Dly
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DLYPM (No PM10 or PM2.5mass data) |
3.12M
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|
1990-99 Dly
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DLYPM (No PM10 or PM2.5mass data) |
3.20M
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|
2000-06 Dly
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DLYPM (No PM10 or PM2.5mass data) |
1.59M
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1988-01 Dly
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DLYDICHOT.DBF (Std. Conditions: constituents and mass data) |
2.05M
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|
1988-01 Dly
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DLYDICHOT (Std. Conditions: constituents and mass data) |
1.63M
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|
1980-06
|
PM mass comma-delimited data (daily, hourly) |
15.1M
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|
1980-06
|
PM mass comma-delimited data (daily, hourly) Access 2003 |
16.2M
|
|
1998-01 Dly
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DICHOTFINELOCAL (Local Conditions: comma-delimited mass data) |
78K
|
|
1998-01 Dly
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DICHOTFINELOCAL (Local Conditions: Excel version of mass data) |
99K
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|
1988-01 Dly
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DICHOTFINESTD (Std. Conditions: comma-delimited mass data) |
124K
|
|
1988-01 Dly
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DICHOTFINESTD (Std. Conditions: Excel version of mass data) |
240K
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|
1998-01 Dly
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DICHOTTOTALLOCAL (Local Conditions: comma-delimited mass data) |
79K
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|
1998-01 Dly
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DICHOTTOTALLOCAL (Local Conditions: Excel version of mass data) |
101K
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|
1988-01 Dly
|
DICHOTTOTALSTD (Std. Conditions: comma-delimited mass data) |
125K
|
|
1988-01 Dly
|
DICHOTTOTALSTD (Std. Conditions: Excel version of mass data) |
238K
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|
1990-06 Dly
|
DLYTOXIC.DBF |
1.23M
|
|
1990-06 Dly
|
DLYTOXIC |
1.09M
|
|
1990-06 Dly
|
DLYTOXIC ACCESS 2003 DATABASE |
8.93M
|
|
1997-06 Dly
|
PM10 Local Conditions (PM10 Mixture) |
0.67M
|
|
1997-06 Dly
|
PM10 Local Conditions (PM10 Mixture) in Excel |
2.13M
|
|
2003-06 Dly
|
PM10 Local Conditions (BAM10) Daily Averages |
0.08M
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|
2003-06 Dly
|
PM10 Local Conditions (BAM10) Daily Averages in Excel |
0.11M
|
|
1983-06 Dly
|
PM10 Std. Conditions (PM10 Mixture) |
1.12M
|
|
1983-06 Dly
|
PM10 Std. Conditions (PM10 Mixture) in Excel |
3.46M
|
|
1993-06 Dly
|
PM10 Std. Conditions (PM10 Mixture) Daily Averages |
0.55M
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|
1993-06 Dly
|
PM10 Std. Conditions (PM10 Mixture) Daily Averages in Excel |
1.93M
|
|
1998-06 Dly
|
PM2.5 Local Conditions (PM2.5 Mixture) |
0.56M
|
|
1998-06 Dly
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PM2.5 Local Conditions (PM2.5 Mixture) in Excel |
1.72M
|
|
1999-06 Dly
|
PM2.5 Local Conditions (BAM2.5) Daily Averages |
0.33M
|
|
1999-06 Dly
|
PM2.5 Local Conditions (BAM2.5) Daily Averages in Excel |
1.12M
|
|
1980-06 Mth
|
YMONTHLY.DBF (Monthly criteria values - no PM available) |
1.95M
|
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1980-06 Mth
|
YMONTHP8.DBF (Monthly ozone values for site and 8-hr ozone planning areas) |
1.64M
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1980-06 Yrly
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YSMULTIC.DBF (Annual criteria for site, county, and basin) |
0.86M
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1980-06 Yrly
|
ASCII ANNUAL CRITERIA SITE, COUNTY, AND BASIN |
0.90M
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1980-06 Yrly
|
YSMULTP8.DBF (Annual ozone for site and 8-hr ozone planning areas) |
0.34M
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1980-06 Yrly
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TOP4VALU.DBF (Top 4 criteria values) |
1.32M
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1980-06 Yrly
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T4VALPA8.DBF (Top 4 ozone values for site and 8-hr ozone planning areas) |
0.45M
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1990-06 Yrly
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YTOXICS.DBF (Annual toxics from the ARB toxics network) |
0.54M
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1980-06
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VARIABLE.DBF (Table of variables) |
0.08M
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1990-06
|
COMPOUND.DBF (List of toxics compounds) |
0.07M
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