Water pollution refers to changes in the physical, biological and chemical conditions of any water body that detrimentally upset the balance of the ecosystem.
Like any type of pollution, water pollution occurs when huge amounts of waste from different sources of pollutants can no longer be accommodated by the natural ecosystem. As a result, when waste is not destroyed as quickly as it is produced, it becomes unfavorable for humans and many other organisms. But that’s not all. Learn more about what causes water pollution.
There are actually many special reasons behind what causes water pollution. However, it is important to become familiar with the two main categories of water pollution. Some impurities come directly from a particular position of the person. This type of pollution is called point source pollution, such as sewer pipes that discharge polluted water into rivers and farmland. Meanwhile, non-point source pollution is pollution from large areas such as gasoline and other dirt from highways to lakes and rivers.
What are the causes of water pollution? Who are the culprits who should be responsible for the damage caused by the pollutants? How do these pollution sources pollute different water bodies?
One of the main causes of water pollution, which causes serious environmental and health problems, is pollutants from chemical and industrial processes. When factories and manufacturers dump their chemicals and animal waste directly into streams and rivers, the water becomes toxic and oxygen levels are depleted, causing many aquatic organisms to die. These wastes contain solvents and toxic substances. Most wastes are not biodegradable. Power plants, paper mills, refineries, automobile factories dump waste into rivers.
Heated water from power plants is called thermal pollution. This kills aquatic animals and plants by reducing the oxygen content of the water. Power plants use water to cool their machines, thereby changing the temperature of the water.
In addition to thermal pollution, there are also organic and inorganic pollutants. Organic waste includes waste from slaughterhouses, fish and meat canning factories, and leather tanning companies, manufacturing plants, pesticides, and crude oil companies. Since organic wastes are decomposed by microorganisms, most of the dissolved oxygen in the water is depleted and the waste starts to smell.
Inorganic wastes include toxic and corrosive substances such as acids, heavy metals, mercury, cadmium and lead that can disrupt normal body processes. Battery manufacturers, mining, paper mills increase the concentration of mercury, making the water dangerous and toxic to most living things.
Another cause of water pollution is from pesticides. Farm pesticides poison aquatic plants and animals. Animal manure, chemical fertilizers, phosphate detergents pollute the water by providing excess nutrients. This pollution is known as eutrophication. This greatly increases the growth of algae in the water, thereby reducing the amount of oxygen level in the water and causing the death of many aquatic organisms.
The water is also polluted with garbage, especially plastics and other plastic-like substances. Some plastics, such as nylon, can entrap fish and other marine animals. Plastics that break into small pieces can be eaten by sea creatures and cause their death. Because plastic is not biodegradable, it will continue to kill more fish.
Another cause of water pollution is sewage from houses. Since no one wants to live in a polluted area, near a landfill or landfill, wastewater and untreated sewage are removed from the home, polluting different water bodies. Most developing countries practice this type of sewage disposal. Even modern countries carry poorly treated sewage into canals that lead to large bodies of water. The danger is that the sewer pipes will break and the waste will contaminate the drinking water. When this happens, the breakage will open up a wide variety of waterborne diseases that will definitely pose a danger to consumers.
Personal care and household products are the last among the causes of water pollution. Shampoo, lotion, moisturizer, hair dye, bleach, laundry detergent, fabric softener and others contribute to water pollution. Human waste isn’t the only thing going into the sewers. These products are also added to wastewater to pollute streams, rivers and lakes.
Although the world is full of water, only three percent is drinkable. The 3% drinking water source includes streams, springs, rivers, lakes and waterfalls, which are constantly threatened and polluted by different factors that cause water pollution. If the sources of water pollution are not controlled, this basic need will eventually become a rare commodity that only a few can afford.