Siv tau Scope:Dav siv nyob rau hauv cov pas dej loj, reservoirs, toj roob hauv pes, dej, dej phwj hauv nroog, tshem tawm cov eutrophication ntawm nitrogen, phosphorus thiab cyanobacteria.
Daim ntawv thov:CNOOC, CNPC, Sinopec, offshore roj drilling platforms ntawm hiav txwv, ntau tshaj 300000 tons ntawm cov roj pier ntawm hiav txwv.