Pollution in Masan Bay, a matter of concern in South Korea

Results are presented of studies on pollution in Masan bay, South Korea, which received discharges of untreated sewage and inadequately treated industrial waste waters. The hydrography of the area was such that pollutants were flushed out only very slowing. Increased eutrophication had resulted in regular occurrence of red tides, while the sediments contained organic contaminants and heavy metals. Tabulated data are included on average water quality at the surface and bottom at 14 sampling sites in July and August 1988. It was planned to construct a sewage works to provide primary treatment and chlorination of effluent in 1990, and secondary treatment facilities would be provided by the year 2001.