Table 1 Physico-chemical parameters of Siruvani water from catchment region of river Noyyal collected during a different season. Mean ± standard deviation values were given. NC- not collected.
Parameter | Collection site | Winter | Summer | Monsoon | Post-monsoon |
|---|---|---|---|---|---|
pH | S1 | 6.63 ± 0.01 | 8.52 ± 0.026 | 8.16 ± 0.025 | 8.0 ± 0.08 |
S2 | NC | 9.54 ± 0.011 | NC | 8.60 ± 0.03 | |
S3 | 7.48 ± 0.01 | NC | 8.06 ± 0.00 | 8.23 ± 0.07 | |
S4 | 6.16 ± 0.005 | 9.33 ± 0.005 | 9.11 ± 0.02 | 8.4 ± 0.05 | |
S5 | 7.46 ± 0.005 | 7.96 ± 0.005 | 7.66 ± 0.05 | 7.86 ± 0.01 | |
Turbidity (NTU) | S1 | 15.94 ± 1.79 | 1.9 ± 0.6 | 2 ± 0.0 | 2.66 ± 1.15 |
S2 | NC | 25.7 ± 0.3 | NC | 2.0 ± 0.0 | |
S3 | 0.5 ± 0.2 | NC | 3.33 ± 0.57 | 16.33 ± 3.05 | |
S4 | 6.5 ± 0.81 | 1.23 ± 0.05 | 2.33 ± 0.57 | 4.66 ± 0.57 | |
S5 | 13.06 ± 0.2 | 23.3 ± 0.3 | 1.0 ± 0.0 | 3.0 ± 0.0 | |
Total Alkalinity (ppm) | S1 | 0 | 46 ± 6.0 | 31.33 ± 2.3 | 34.66 ± 3.05 |
S2 | NC | 31.33 ± 9.45 | NC | 46 ± 0.00 | |
S3 | 16.66 ± 3.05 | NC | 32.66 ± 2.3 | 32 ± 3.46 | |
S4 | 0 | 34 ± 6.0 | 34.66 ± 1.15 | 54.66 ± 1.15 | |
S5 | 20.46 ± 1.2 | 24.66 ± 6.42 | 42 ± 7.2 | 35.33 ± 6.11 | |
Hardness (ppm) | S1 | 577.33 ± 26.63 | 73.33 ± 23.09 | 68 ± 10.58 | 28 ± 4.0 |
S2 | NC | 104 ± 0.00 | NC | 36.0 ± 4.0 | |
S3 | 766.66 ± 6.11 | NC | 46.66 ± 9.23 | 33.33 ± 6.11 | |
S4 | 473.33 ± 22.03 | 120 ± 13.83 | 534.66 ± 16.16 | 44.0 ± 4.0 | |
S5 | 200 ± 6.92 | 536 ± 21.16 | 401 ± 34.94 | 445.33 ± 34.94 | |
Ammonia (ppm) | S1 | 0.038 ± 0.001 | 0.044 ± 0.011 | 0.027 ± 0.002 | 0.041 ± 0.003 |
S2 | NC | 0.033 ± 0.055 | NC | 0.055 ± 0.0 | |
S3 | 0.054 ± 0.00 | NC | 0.035 ± 0.003 | 0.038 ± 0.001 | |
S4 | 0.0839 ± 0.001 | 0.003 ± 0.001 | 0 | 0 | |
S5 | 0.015 ± 0.00 | 0.004 ± 0.001 | 0 | 0 | |
Nitrite(ppm) | S1 | 0.0173 ± 0.0 | 0.163 ± 0.016 | 0.044 ± 0.002 | 0.185 ± 0.004 |
S2 | NC | 0.096 ± 0.0 | NC | 0.556 ± 0.029 | |
S3 | 0.001 ± 0.0 | NC | 0.017 ± 0.002 | 0.182 ± 0.007 | |
S4 | 0.019 ± 0.0 | 0.181 ± 0.009 | 0.019 ± 0.0 | 1.54 ± 0.012 | |
S5 | 0.001 ± 0.0 | 0.007 ± 0.001 | 0.03 ± 0.0 | 2 ± 0.048 | |
Phosphate (ppm) | S1 | 8.33 ± 0.005 | 0 | 52.08 ± 0.04 | 0 |
S2 | NC | 0 | NC | 0 | |
S3 | 75.16 ± 0.208 | NC | 68.63 ± 0.126 | 0 | |
S4 | 854.34 ± 0.289 | 0 | 141.66 ± 0.03 | 0 | |
S5 | 58.35 ± 0.026 | 0 | 54.2 ± 0.05 | 0 | |
Chloride (ppm) | S1 | 66 ± 1.15 | 27 ± 3.6 | 10 ± 2.64 | 6 ± 0.0 |
S2 | NC | 18 ± 5.5 | NC | 15.33 ± 6.11 | |
S3 | 18.66 ± 1.15 | NC | 19 ± 5 | 9.33 ± 3.05 | |
S4 | 12 ± 0.0 | 29.66 ± 11.59 | 167.33 ± 2.88 | 11.33 ± 3.05 | |
S5 | 4 ± 0.0 | 253.33 ± 9.81 | 12 ± 5 | 352 ± 2 |
