Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

ASSESSMENT OF IRRIGATION WATER QUALITY BY USING PRINCIPAL COMPONENT ANALYSIS IN AN ARSENIC AFFECTED AREA OF BANGLADESH (Pages : 8 - 17)

The irrigation water quality was assessed around Budhol union under the district of Brahmanbaria in Bangladesh where underground water is highly arsenic (As) contaminated. Three types (surface, shallow tube well and deep tube well) of irrigation water samples were collected for physio-chemical analyses, which included pH, EC, TDS, Ca, Mg, Na, K, Fe, Zn, Cu, Mn, P, B, As, CO3, HCO3, Cl, SO4 and NO3. Comparative study and the distribution pattern of anionic and cationic constituents were performed for three types of arsenic contaminated irrigation water sources. Among the water sources, surface irrigation water was found less arsenic and manganese toxicity for irrigation. On the other hand, shallow tube wells water used for irrigation purpose contain more soluble arsenic then surface water and deep tube wells. Depth of tube well is correlated with arsenic concentration of well water. In order to understand the distribution of individual geochemical variables in the irrigation water samples collected from the sites affected by arsenic toxicity, principal component analysis was performed. The results of principal component analysis showed that geochemical variables have tendency to accumulate into three distinct groups. Well Depth, As and Mn were belongs to one group, which indicate that WD might have positive effect on As and Mn. Download