I have been watching magnet fishing and people love to toss stuff over bridges without a second thought on the environmental impact. Hiding evidence I can almost understand but not lawnmowers, car batteries, etc.
It seems deeper fines should be made to discourage this terrible behavior.
It is free in Sweden but we still have bicycles under every bridge. My guess is the bicycles were stolen to get home from a night out, and then disposed of.
It’s not free for companies and private citizens always (afaik) have pay for garbage collection which includes access to recycling places (landfills are illegal)