Perfluorochemicals (PFCs) are widely found in the water environment. In this study, a total of 19 PFC
compounds were monitored in surface waters collected from different locations in the highly urbanized
Marina Catchment of Singapore. Analysis results showed concentrations of PFCs ranging from sub ng/L
to tens ng/L. Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) were observed to be
the dominant species among the PFCs. Compounds regularly detected were perfluoroalkanoic acids (C7
to C12) and perfluoroalkyl sulfonates (C6 and C8). In particular, intermediate PFCs such as
perfluorooctanesulfonamide (FOSA), 2-(N-methylperfluorooctanesulfonamido) acetic acid (NMeFOSAA),
and 2-(N-ethylperfluorooctanesulfonamido) acetic acid (N-EtFOSAA) were measured from
undetectable levels to 10 ng/L. In general, the concentrations of PFCs fluctuated with varying conditions of weather and water regime. Includes references, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 840 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 7 |
| Published : | 11/01/2009 |
