Salt pollution in a Japanese stream and its effects on water chemistry and epilithic algal chlorophyll-a

  title={Salt pollution in a Japanese stream and its effects on water chemistry and epilithic algal chlorophyll-a},
  author={Edson Luiz Silva and Ayana Shimizu and Hiroaki Matsunami},
Concentrations of major ions, total phosphorus, dissolved organic carbon, biological oxygen demand and chlorophyll-a of epilithic algae were determined weekly at nine sites in a Japanese stream receiving effluent from a groundwater treatment plant. The concentrations of four major cations (Na, K, Ca and Mg) and chloride ion increased significantly immediately at downstream sites of the effluent outfall. The ionic concentrations decreased with increasing dilution from merging tributaries but… CONTINUE READING


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