Table 1.
Number of measurements collected by the RP contractors between 22 April 2010 and 30 June 2011 before exclusions (see text).
| Analyte measured | Number of measurements collected in the study period |
|---|---|
| 2-Butanone | 5 |
| 2-Butoxyethanol | 1029 |
| Acetone | 9 |
| Benzene | 27 861 |
| Cyclohexane | 3722 |
| Ethylbenzene | 27 861 |
| Limonene | 244 |
| n-Heptane (C7) | 3722 |
| n-Hexane (C6) | 3722 |
| Petroleum distillates | 38 |
| Tetrahydrofuran | 3722 |
| THC, calculated as n-hexanea | 27 861 |
| Toluene | 27 861 |
| Trimethylbenzenes, total | 3722 |
| Xylenes, total (m-, o-, and p-isomers) | 27 861 |
| Total measurements | 159 240 |
RP, Responsible Party of the spill; THC, total hydrocarbons, analyzed as total petroleum hydrocarbons.
a See text for details on the n-hexane calculation.