SPM/SO2/NOX Concentration in Chittagong. All concentration in Microgram/Cubic Meter
| Parameter Monitored | Date | Area Observed | Value |
| SPM | 24.03.90 | DoE Lab | 54 |
| 25.03.90 | DoE Lab | 86 | |
| SO2 | 24.03.90 | DoE Lab | 572 |
| NOX | 24.03.90 | DoE Lab | 756 |
Source: Bangladesh Environment Facing the 21st Century, SEHD Bangladesh