Judging by your response you did not look up the science at all......also judging by the time frame 5 mins you did not look up the science. So poor, this is why you have the opinion you do. You will not look up anything unless it has the word fish farm in it. 50% of estuary smolts die because you pooped and flushed!!! Lol . The pulp industry on the fraser river still pollutes today, 1% of Fraser river water is contaminated with 98 CEC's from this industry. It's a gift they gave us years ago that keeps giving