@phchemreviewer: Ever wonder exactly why garbage kills river fish? It’s basically an oxygen heist. When trash is dumped into the water, Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) absolutely skyrocket. Microbes and chemical reactions work overtime to break down that waste, consuming massive amounts of Dissolved Oxygen (DO) in the process. The result? The water goes hypoxic. The dissolved oxygen drops so low that fish literally suffocate. To make matters worse, as the oxygen completely vanishes, toxic byproducts like ammonia and hydrogen sulfide take over. Protect our rivers. Dispose of your trash properly! #river #waterpollution