Table 4.
Concentration (µg/mL) of PAHs in 20 cm depth water samples collected from Buriganga river in 2010 and in 2011.
| Sample stations | Sample points | Year 2010 | Year 2011 | ||||
|---|---|---|---|---|---|---|---|
| PAHs (µg/mL) | |||||||
| ANT | NAP | PHE | ANT | NAP | PHE | ||
| Koilaghat | Northern | × | 0.952 | 0.789 | 3.036 | 0.484 | 1.133 |
| Middle | × | 0.544 | × | 0.451 | 3.113 | 1.210 | |
| Southern | × | 0.440 | 1.805 | 3.201 | × | 1.298 | |
|
| |||||||
| Sowarighat | Northern | × | × | 1.702 | × | × | × |
| Middle | 1.678 | 0.831 | × | 3.036 | 0.572 | × | |
| Southern | × | 0.038 | × | × | 0.451 | × | |
|
| |||||||
| Sadarghat | Northern | × | 0.197 | × | 3.135 | 0.572 | 1.243 |
| Middle | × | 0.212 | 2.546 | × | 0.473 | × | |
| Southern | 3.076 | × | × | × | 0.462 | × | |
|
| |||||||
| Postogolaghat | Northern | × | 0.033 | × | 3.113 | 0.451 | 1.210 |
| Middle | × | 0.363 | 0.327 | 0.462 | 1.133 | × | |
| Southern | × | 0.357 | 0.320 | × | × | × | |
The sign “×” stands for not detected.