Table 7. Concentrations of volatile organic compounds detected in samples from National Pollutant Discharge Elimination System surface-water sites in light industrial land-use areas, South-Central Texas study area
[In micrograms per liter. --, not detected]
|
||||||
Volatile organic compound |
Sampling date | |||||
|
||||||
9/10/92 | 11/18/92 | 1/19/93 | 2/3/93 | 2/9/93 | 2/25/93 | |
|
||||||
Methylene chloride | -- | -- | -- | 0.2 | -- | -- |
.2 | ||||||
Toluene | -- | -- | -- | -- | -- | 0.2 |
.2 | ||||||
Xylene | -- | -- | 0.2 | -- | -- | .2 |
.2 | .2 |
Back to:
Forward to Table 8
AccessibilityFOIAPrivacyPolicies and Notices | |