GC/MS BASED ANALYSES OF INDIVIDUAL ORGANIC-CONSTITUENTS OF CHAO-PHRAYA RIVER WATER AND ESTIMATED DISCHARGE RATES INTO THE UPPER GULF OF THAILAND

Detailed GC/MS based chemical analyses of organic concentrates from the Chao Phraya River obtained from a water sample collected in the Bangkok metropolitan area indicated that hydrocarbons of petroleum or combustion sources may be minor constituents of the dissolved lipophilic fraction relative to biogenic hydrocarbons and industrial chemicals. Using published data on river discharge and the concentrations measured in an integrated sample, tentative input rates into the Upper Gulf of Thailand for characterized chemicals are calculated. © 1990.