Anthropogenic halocarbons, concentration

C, and C2 halocarbons of natural and anthropogenic origin are omnipresent in the atmosphere and the ocean. For example, in the eighties, typical concentrations in the northern hemisphere air and in Arctic seawater of 1,1,1-trichloroethane (also called methyl chloroform, MCF) and tribromomethane (bromoform, BF) were measured by F ogelqvist (1985) ... 

Table 23-1 lists the anthropogenic and biogenic halocarbons which have been found dissolved in seawater. The large number of compounds, all with similar physico-chemical properties and concentration ranges in the fmol/L to pmol/L range, indicate that an analytical method capable of measuring all of them simultaneously must combine the highest possible separation power with extreme sensitivity. 

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