Chemical wastes from industry are dumped in rivers, lakes, streams, etc. as effluents.
By discharging oil, hazardous substances, and other harmful liquids known as effluents into streams, factories turn them into open sewers.
The normal purifying cycle of water, which is carried out by microbes, is hampered by these pollutants, which also damage water reservoirs.
Heavy elements like chromium, lead, mercury, and other ones provide serious dangers to aquatic life in waste from tanneries and other large industrial facilities.
Additionally, the phosphate and nitrogenous waste produced by the fertilizer industry is dumped into lakes, rivers, and other bodies of water, which eutrophicates them.