Abstract
Alkylbenzene Sulf onate (ABS) concentration in the water of the Tama River was measured continuously from Oct. 1962 to Oct. 1966.
The results obtained show that the ABS load has been increasing year by year, and that the Tama River has been heavily polluted by its branches into which the domestic sewage and industrial waste are flowing.
Pollutant loads of the Nogawa and the Hirasegawa (the branches of the Tama River), considered to be heavily polluted, showed 5 times, 3 times and 2 times as much ABS, COD and NH3-N as those of the main stream of the Tama River.