Redolence and Land Use on Nosy Be, Madagascar

Daniel Gade
1984 Journal of Cultural Geography  
For physical parameters such as temperature the value found is 16°C, the required standard is less than 25°C, for turbidity the found value is 1.05 NTU, the limit value is less than 5NTU, for pH the value found is 6.34, the limit value is between 6.5 to 9 and for the conductivity the found value is 33.5 μS / cm, the required value is between 180 to 1000 μS / cm. The physical parameters correspond to 99% for the 0.06 mg / L the limit concentration is required that the water is intended for human
more » ... intended for human consumption. For chemical parameters, such as dissolved oxygen 0.2 mg / L the limit concentration is less than 2mg / L, the salinity level is 0mg / L, the limiting concentration is 0 mg / L, the TAC 0.4°f the limit value is less than 11°f, the nitrate 11.2 mg / L the limit concentration is 50 mg / L, the total hardness 3.2 mg / L the limit concentration is 50 mg / L, Ammonium 0.06 Limit value is 0.5mg / L, Sodium 8.28mg / L limit concentration is 200mg / L, Potassium 11mg / L limit concentration is 12mg / L, Calcium 2.4 limit concentration varies from 100 At 200mg / L, the Magnesium 6.31 mg / L limit concentration is 50mg / L, the Chloride 12.78 mg / L the limit concentration is 250 mg / L and the metals such as Iron, Aluminum, Lead are absent. Therefore the chemical parameters of the water of the AMPOTAKA well are acceptable for the standards required to the drinking water, in spite of the insufficiency of some found concentrations. For microbiological parameters, as microorganisms at 22°C 120 Ufc / mL the required value is less than 100 Ufc / mL, microorganism at 36°C 25 Ufc / mL the required value is less than 20 CFU / mL, Coliforms 70 CFU / 100 mL the limit value is 0, Escherichia Coli 1 Ufc / 100mL, the limit value is 0, Enterococci 1Ufc / 100mL the limit value is 0 and Spores 4 Ufc / 100mL the limit value is 0. Therefore the well water of AMPOTAKA is microbial it must be treated before being used.
doi:10.1080/08873638409478572 fatcat:d6u7plgsfrghzbn5klevkspkja