California Air Resources Board

1990-1996 Statewide Ethyl Benzene Summary, ppb

Ethyl Benzene Trend Graph Ethyl Benzene Graph Legend

Data Record
1990 1991 1992 1993 1994 1995 1996
------------ ------------ ------------ ------------ ------------ ------------ ------------

Year *Minimum Median **Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
1996 0.3 0.3 0.37 0.3 2.9 0.26 626
1995 0.3 0.3 0.40 0.8 4.1 0.31 616
1994 0.3 0.3 0.39 0.7 3.0 0.27 609
1993 0.3 0.3 0.45 0.9 2.8 0.35 596
1992 0.3 0.3 0.48 1.0 2.4 0.36 591
1991 0.3 0.3 0.47 1.0 3.0 0.40 444
1990 0.3 0.3   1.0 3.9 0.42 336
  * Limit of Detection (LoD) = 0.6 ppb (values below the LoD expressed as one-half of the LoD)
  ** Annual means displayed only for years with data in all 12 months

Go to Data Explanation Explanation of the sampling program, analytical methods, and common data uses.

To download the unsummarized toxics data*,
click on the appropriate year below:
 
All Years
1990 1991 1992 1993 1994 1995 1996
 
* Files are comma-delimited, fields = Site, Date, and Ethyl Benzene Value.
All data are expressed in parts per billion.
Each data value represents a 24-hour sample.

Please direct your questions about the ethyl benzene data to
AQDWeb at the California Air Resources Board.

This page last revised on December 22, 1997.

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