re: Safe to eat catfish caught in the Mississippi River at BR south of Exxon?

IMO the plant water is not a problem with pollution or endangering fish these days. Pollution is a relative word defined by EPA and DEQ limits on what can and can't be discharged and at what levels. Bisphenonal A has come under fire over the last decade but the science isn't conclusive on what problems it can cause, if any. I have a much bigger concern with agricultural chemical run off than I do with the chemical companies as they are monitored closely.

If you really want a scare, read any MSDS a for just about any pesticide. As a scientist, I don't think the levels of pesticide would be very high in the MS river due to dilution and the enormous mass of water, but it is definitely a risk at some point.