Table 4.
Simulations of transmission via sewer pipes in field experimenta.
| Apartment | Room | Time (min) |
Chloroform (mg/L) |
Carbon tetrachloride (mg/L) |
Field observation |
|---|---|---|---|---|---|
| #8-b | Master Bathroom | background | 0.00 | 0.00 | Dry floor drains |
| 30 | 0.00 | 0.00 | |||
| 60 | 0.00 | 0.00 | |||
| Guest Bathroom | background | 0.00 | 0.00 | ||
| 30 | 0.00 | 0.00 | |||
| 60 | 0.00 | 0.00 | |||
| #21-b | Master Bathroom | background | 0.00 | 0.00 | Water seal in the floor drains |
| 30 | 0.00 | 0.00 | |||
| 60 | 0.00 | 0.00 | |||
| Guest Bathroom | background | 0.00 | 0.00 | ||
| 30 | 0.00 | 0.00 | |||
| 60 | 0.00 | 0.00 | |||
| #26-b | Master Bathroom | background | 0.00 | 0.00 | Dry floor drains |
| 30 | 0.12 | 0.26 | |||
| 60 | 0.074 | 0.13 | |||
| Guest Bathroom | background | 0.00 | 0.00 | ||
| 30 | 0.087 | 0.17 | |||
| 60 | 0.096 | 0.14 | |||
| #27-b | Master Bathroom | background | 0.00 | 0.00 | Water seal in the floor drains |
| 30 | 0.00 | 0.00 | |||
| 60 | 0.00 | 0.0025 | |||
| Guest Bathroom | background | 0.00 | 0.00 | ||
| 30 | 0.00 | 0.00 | |||
| 60 | 0.00 | 0.0024 |
a
Instrument used for detection: Agilent 7890A GC; # Residential apartment.