Seawater Quality Standard of the People's Republic of China. Country/Territory China Document type Regulation Date 1998 Source FAO, FAOLEX Subject Sea, Environment gen. Keyword Marine pollution Ecosystem preservation Environmental planning Environmental standards Pollution control Classification/declassification Territorial sea Geographical area Asia, Eastern Asia Entry into force notes Has come into force on 1 July 1998. Abstract In view of executing the Environment Protection Law and the Marine Environment Protection Law, preventing and controlling seawater pollution, protecting marine biological resources and other marine resources, and preserving marine ecosystem, this Standard is hereby formulated. It classifies seawater quality into four grades, and gives the quality standards for each grade. Full text Chinese