Industrial Waste
One of the major causes of water pollution is the discharge of waste from industries. It is a common observation that industries find rivers and oceans a convenient place to dump their waste material into. The waste contains toxic substances and also includes elements like lead, mercury, nitrates and sulfates. They are quite harmful for humans as well as aquatic animals. A large amount of money is spent on treating the water bodies that get contaminated and making them suitable to use for drinking purposes again. Moreover, there are still risks of various diseases after consuming the water containing such toxic material. Often, hot or contaminated water is also released into the rivers from industries, which increases the overall temperature of the rivers, thus making them unfavorable for the aquatic flora and fauna to thrive.