Assessing Outdoor Air Near Schools
Revised Data for Harriet Tubman Middle 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. 23, 2009 | Carbon tetrachloride | 1.058 | 0.655 |
| Aug. 23, 2009 | Chloromethane | 1.413 | 1.366 |
| Aug. 23, 2009 | Methyl chloroform | 0.098 | 0.071 |
| Aug. 23, 2009 | Styrene | 0.486 | 0.507 |
| Aug. 29, 2009 | Carbon tetrachloride | 1.007 | 0.680 |
| Aug. 29, 2009 | Carbon tetrachloride | 0.982 | 0.661 |
| Aug. 29, 2009 | Chloromethane | 1.618 | 1.550 |
| Aug. 29, 2009 | Chloromethane | 1.546 | 1.481 |
| Aug. 29, 2009 | Methyl chloroform | 0.104 | 0.082 |
| Aug. 29, 2009 | Methyl chloroform | 0.087 | 0.066 |
| Aug. 29, 2009 | Styrene | 0.448 | 0.499 |
| Aug. 29, 2009 | Styrene | 0.482 | 0.537 |
| Sep. 04, 2009 | 1,3-Butadiene | 0.062 | 0.095 |
| Sep. 04, 2009 | 1,3-Butadiene | 0.044 | 0.069 |
| Sep. 04, 2009 | 1,4-Dichlorobenzene | 0.078 | 0.072 |
| Sep. 04, 2009 | 1,4-Dichlorobenzene | 0.048 | 0.042 |
| Sep. 04, 2009 | Methyl isobutyl ketone | 1.373 | 1.353 |
| Sep. 04, 2009 | Methyl isobutyl ketone | 0.955 | 0.943 |
| Sep. 16, 2009 | Acetonitrile | 29.734 | 28.726 |
| Sep. 16, 2009 | Acetonitrile | 24.023 | 23.183 |
| Sep. 16, 2009 | Carbon disulfide | 0.573 | 0.558 |
| Sep. 16, 2009 | Carbon disulfide | 0.299 | 0.293 |
| Sep. 16, 2009 | Carbon tetrachloride | 1.120 | 0.661 |
| Sep. 16, 2009 | Carbon tetrachloride | 0.988 | 0.585 |
| Sep. 16, 2009 | Chloromethane | 1.572 | 1.318 |
| Sep. 16, 2009 | Chloromethane | 1.459 | 1.223 |
| Sep. 16, 2009 | Methyl chloroform | 0.120 | 0.082 |
| Sep. 16, 2009 | Methyl chloroform | 0.109 | 0.071 |
| Sep. 16, 2009 | Methyl isobutyl ketone | 0.685 | 0.566 |
| Sep. 16, 2009 | Methyl isobutyl ketone | 0.377 | 0.312 |
| Sep. 22, 2009 | Carbon tetrachloride | 1.278 | 0.831 |
| Sep. 22, 2009 | Carbon tetrachloride | 1.152 | 0.749 |
| Sep. 22, 2009 | Chloromethane | 1.597 | 1.448 |
| Sep. 22, 2009 | Chloromethane | 1.498 | 1.360 |
| Sep. 22, 2009 | Methyl chloroform | 0.104 | 0.076 |
| Sep. 22, 2009 | Methyl isobutyl ketone | 0.471 | 0.414 |
| Sep. 22, 2009 | Methyl isobutyl ketone | 0.353 | 0.307 |
| Sep. 28, 2009 | Acetonitrile | 1.932 | 1.540 |
| Sep. 28, 2009 | Acetonitrile | 2.352 | 1.881 |
| Sep. 28, 2009 | Bromomethane | 0.039 | 0.035 |
| Sep. 28, 2009 | Bromomethane | 0.051 | 0.047 |
| Sep. 28, 2009 | Carbon disulfide | 0.081 | 0.069 |
| Sep. 28, 2009 | Carbon disulfide | 0.106 | 0.090 |
| Sep. 28, 2009 | Carbon tetrachloride | 1.278 | 0.699 |
| Sep. 28, 2009 | Carbon tetrachloride | 1.246 | 0.686 |
| Sep. 28, 2009 | Chloroethane | 0.021 | 0.018 |
| Sep. 28, 2009 | Chloroethane | 0.042 | 0.037 |
| Sep. 28, 2009 | Chloroform | 0.166 | 0.156 |
| Sep. 28, 2009 | Chloroform | 0.176 | 0.166 |
| Sep. 28, 2009 | Chloromethane | 1.413 | 1.211 |
| Sep. 28, 2009 | Chloromethane | 1.488 | 1.273 |
| Sep. 28, 2009 | Dichloromethane | 0.751 | 0.709 |
| Sep. 28, 2009 | Dichloromethane | 0.792 | 0.747 |
| Sep. 28, 2009 | Methyl chloroform | 0.120 | 0.087 |
| Sep. 28, 2009 | Methyl chloroform | 0.098 | 0.071 |
| Oct. 10, 2009 | Acetonitrile | 22.007 | 21.335 |
| Oct. 10, 2009 | Acetonitrile | 19.991 | 19.319 |
| Oct. 16, 2009 | 1,3-Butadiene | 0.365 | 0.339 |
| Oct. 16, 2009 | 1,3-Butadiene | 0.268 | 0.248 |
| Oct. 16, 2009 | Acetonitrile | 40.486 | 35.278 |
| Oct. 16, 2009 | Acetonitrile | 37.294 | 32.590 |
| Oct. 16, 2009 | Chloromethane | 1.725 | 1.322 |
| Oct. 16, 2009 | Chloromethane | 1.744 | 1.337 |
| Oct. 16, 2009 | Methyl chloroform | 0.098 | 0.093 |
| Oct. 16, 2009 | Methyl chloroform | 0.087 | 0.082 |
| Oct. 16, 2009 | Methyl isobutyl ketone | 0.582 | 0.500 |
| Oct. 16, 2009 | Methyl isobutyl ketone | 0.541 | 0.463 |
| Oct. 28, 2009 | Acetonitrile | 20.159 | 18.647 |
| Oct. 28, 2009 | Acetonitrile | 20.831 | 19.319 |
| Oct. 28, 2009 | Bromomethane | 0.043 | 0.039 |
| Oct. 28, 2009 | Bromomethane | 0.039 | 0.035 |
| Oct. 28, 2009 | Carbon disulfide | 0.087 | 0.081 |
| Oct. 28, 2009 | Carbon disulfide | 0.075 | 0.069 |
| Oct. 28, 2009 | Carbon tetrachloride | 0.755 | 0.749 |
| Oct. 28, 2009 | Carbon tetrachloride | 0.812 | 0.806 |
| Oct. 28, 2009 | Chloromethane | 1.415 | 1.172 |
| Oct. 28, 2009 | Chloromethane | 1.459 | 1.209 |
| Oct. 28, 2009 | Dichloromethane | 1.446 | 1.439 |
| Oct. 28, 2009 | Dichloromethane | 1.474 | 1.467 |
| Oct. 28, 2009 | Trichloroethylene | 0.118 | 0.113 |
| Oct. 28, 2009 | Trichloroethylene | 0.124 | 0.118 |
| Nov. 03, 2009 | Ethylbenzene | 0.782 | 0.721 |
| Nov. 03, 2009 | Ethylbenzene | 0.721 | 0.665 |
| Nov. 03, 2009 | Methyl isobutyl ketone | 0.582 | 0.553 |
| Nov. 03, 2009 | Methyl isobutyl ketone | 0.172 | 0.164 |
| Nov. 03, 2009 | Toluene | 4.676 | 4.185 |
| Nov. 03, 2009 | Toluene | 4.487 | 4.035 |