Q. I don't understand why some industries are “grandfathered into” the regulations (i.e. old industries don't have to follow the same rules as younger industries) – it seems to me that the rules should be the same for everyone, since they exist for everyone's protection. I suppose it is related to who has the most lobbying power.
A. Yes, but congress did not want to put existing businesses out of business.

Q. Why is a pollutant expressed as a weight of pollutant/weight of product? Wouldn't it be more informative to use some sort of toxicity measurement?
A. Excellent point. Laws and regulations do not have to be logical - only "enforceable."

Q. WOW – I was amazed at your descriptions of New Jersey. I visited southern New Jersey for the first time, and I was pretty shocked by the smell, although I have to admit that it wasn't quite as bad as what I'd expected, having heard horror stories before I left. What exactly burns under the surface of the swamp? Have there been no cleanup efforts? A. Southern New Jersey is very clean compared to the northern part. My guess is that the trash is 20 to 50 feet deep, mixed with swamp. It's not practical to clean it. The answer used to be to fill it and make valuable land, but such wetlands are now protected.