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Table 2 (in the
last slide) apparently shows that a sufficient number of monitoring sites
had POC residue levels greater than the screening values by more than
30-fold. According to U.S. EPA (2000a), concentrations exceeding these
screening values are considered to be of public health concern. Thus for
these areas, perhaps no more than one or two fish meals (8 oz. each) per
month should be recommended, especially for the higher risk groups (e.g.,
children and pregnant women), in order to keep the dietary intake of POCs
below the ADI or RfD levels. However, it is well taken that this kind of
fish advisory is not practical to residents who rely on fish as their main
diet. |