Month | Mean TSS concentration (ppm) 1978-1989 (±SD) | Mean TSS concentration (ppm) 1990-2001 (±SD) |
1 | 2.00 (0.82) | 2.71 (0.75) |
2 | 3.49 (1.11) | 3.55 (1.05) |
3 | 5.49 (1.99) | 3.93 (1.52) |
4 | 5.27 (1.31) | 6.07 (3.31) |
5 | 5.60 (2.76) | 5.35 (1.78) |
6 | 3.25 (0.86) | 3.62 (1.06) |
7 | 2.85 (0.83) | 3.08 (0.86) |
8 | 3.29 (0.59) | 2.82 (0.68) |
9 | 2.67 (0.72) | 2.71 (0.70) |
10 | 2.43 (0.62) | 2.75 (0.63) |
11 | 1.89 (0.75) | 2.28 (0.65) |
12 | 2.04 (1.02) | 2.22 (0.49) |