Table 5.
Concentrations of volatile compounds exceeding health-based risk levels in samples collected in Pennsylvania
| State/ID | County | Nearest infrastructure | Chemical | Concentration (μg/m 3) | ATSDR MRLs exceeded | EPA IRIS cancer risk exceeded |
|---|---|---|---|---|---|---|
| PA-4083-003 | Susquehanna | 420 m from compressor | Formaldehyde | 8.3 | 1/10,000 | |
| PA-4083-004 | Susquehanna | 370 m from compressor | Formaldehyde | 7.6 | 1/100,000 | |
| PA-4136 | Washington | 270 m from PIG launcha | Benzene | 5.7 | 1/100,000 | |
| PA-4259-002 | Susquehanna | 790 m from compressor | Formaldehyde | 61 | C, I, A | 1/10,000 |
| PA-4259-003 | Susquehanna | 420 m from compressor | Formaldehyde | 59 | C, I, A | 1/10,000 |
| PA-4259-004 | Susquehanna | 230 m from compressor | Formaldehyde | 32 | C | 1/10,000 |
| PA-4259-005 | Susquehanna | 460 m from compressor | Formaldehyde | 34 | C | 1/10,000 |
C = chronic; A = acute; I = intermediate.
aLaunching station for pipeline cleaning or inspection tool.