Jump to main content or area navigation.

Contact Us

Assessing Outdoor Air Near Schools

Revised Data for Concord Elementary School

EPA has replaced some data that previously were incorrectly reported. The changes are below. All values are shown in micrograms per cubic meter.

Sample Date Pollutant
Original Value
Revised Value
Aug. 20, 2009 Carbon tetrachloride 1.032 0.642
Aug. 20, 2009 Chloromethane 1.465 1.417
Aug. 20, 2009 Methyl chloroform 0.098 0.071
Aug. 20, 2009 Styrene 0.072 0.077
Aug. 23, 2009 Carbon tetrachloride 1.171 0.730
Aug. 23, 2009 Chloromethane 1.475 1.426
Aug. 23, 2009 Methyl chloroform 0.109 0.082
Sep. 04, 2009 1,3-Butadiene 0.184 0.281
Sep. 04, 2009 1,4-Dichlorobenzene 0.132 0.120
Sep. 04, 2009 Methyl isobutyl ketone 1.832 1.808
Oct. 04, 2009 Carbon tetrachloride 0.787 0.749
Oct. 04, 2009 Chloromethane 1.209 1.107
Oct. 28, 2009 Acetonitrile 0.161 0.150
Oct. 28, 2009 Bromomethane 0.054 0.047
Oct. 28, 2009 Carbon disulfide 0.031 0.028
Oct. 28, 2009 Carbon tetrachloride 0.781 0.774
Oct. 28, 2009 Chloromethane 1.337 1.107
Oct. 28, 2009 Dichloromethane 0.713 0.709
Oct. 28, 2009 Trichloroethylene 0.156 0.151
Nov. 03, 2009 Ethylbenzene 1.034 0.956
Nov. 03, 2009 Methyl isobutyl ketone 0.697 0.664
Nov. 03, 2009 Toluene 6.372 5.731
Nov. 09, 2009 Acetonitrile 0.180 0.160
Nov. 09, 2009 Carbon tetrachloride 1.165 1.114
Nov. 09, 2009 Chloroform 0.147 0.137
Nov. 09, 2009 Chloromethane 1.944 1.756
Nov. 09, 2009 Tetrachloroethylene 0.305 0.292
Nov. 12, 2009 Ethylbenzene 0.408 0.404
Nov. 12, 2009 Toluene 2.440 2.315

 

Jump to main content.