It is important to realize that the type of risk analysis conducted in this lecture is far from flawless; it is only exploratory in nature. There are critical issues inherent in the analysis that need to be resolved first. For one thing, there is an induction issue on linking the fish consumption observed to the POC residues monitored. More bluntly, there may not even be any direct correlation between high consumption observed and high residue level detected even when both of these events take place in the same vicinity. Note that not all fish species in the same vicinity are contaminated by the same chemical or to the same extent. Some fish species do have lower (or higher) fat content than others have (see, e.g., Gall, 2004).