Investigation of Arsenic Chromium and Zinc Concentration for Protection of Aquatic Life in Long Term
Keywords:
Arsenic, Chromium, ZincAbstract
The purpose of this research aims to study the concentration of Arsenic (As), Hexavalent Chromium (Cr6+) and Zinc that affected the growth of aquatic life and plant in Chao Phraya river. Using river Heavy Metal Evaluation Index (rHMEI) equation and PostgreSQL program for analyzing and evaluating water quality data compare to Water Quality Guidelines for the Protection of Aquatic Life of Canadian Environmental Quality Guidelines. The water quality monitoring results from 13 stations of Chao Phraya river from Muang Nakhon Sawan, Nakhon Sawan province to Muang Samut prakarn, Samut Prakan province during February 2008 to November 2018 were investigated in dry season and wet season. The calculation results were divided to two groups. The rHMEI value of 1st group result was less than 0.866 that indicated uninhibited growth aquatic life and plant. The rHMEI value of 2nd group was greater than 0.866 that indicated inhibited growth aquatic life and plant. In summary, in dry season and wet season 3.93% of water quality results was uninhibited growth aquatic life and plant and 96.07% was inhibited growth aquatic life and plant.
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