Seasonal Variations in Surface Water Quality, Samut Songkram Province, Thailand

The research aims to study the quality of surface water
for consumer in Samut Songkram province. Water sample were
collected from 217 sampling sites conclude 72 sampling sites in
Amphawa, 67 sampling sites in Bangkhonthee and 65 sampling sites
in Muang. Water sample were collected in December 2011 for
winter, March 2012 for summer and August 2012 for rainy season.
From the investigation of surface water quality in Mae Klong
River, main and tributaries canals in Samut Songkram province, we
found that water quality meet the type III of surface water quality
standard issued by the National Environmental Quality Act B.E.
1992. Seasonal variations of pH, Temperature, nitrate, lead and
cadmium have statistical differences between 3 seasons.