Table 4. Transient Odor Event Sampling with Tracer Gas Injection for Point-Source Prioritization.
| “mothball” transient odor event | naphthalene | chloroform | ratio of MS detector response to naphthalene (odorant)/chloroform (tracer) | 1,4-dimethoxybenzene |
|---|---|---|---|---|
| sample #1 | 220,450 | 200,750 | 1.1 | 6592 |
| sample #2 | 653,343 | 650,217 | 1.0 | 390 |
| sample #3 | 584,887 | 386,036 | 1.5 | 480 |
| mean | 486,227 | 412,334 | 1.21 ± 0.28 | 2487 |
| “Bluebonnet Field” Transient Odor Event | ||||
| sample #1 | 26,522 | <MDL | 4203 | |
| sample #2 | 35,053 | 580 | 6.3 | 84,373 |
| sample #3 | 17,428 | 2988 | 5.8 | 3771 |
| mean | 26,334 | 2889 | 6.1 | 30,782 |