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WATER POLLUTION - DANGER TO WILDLIFE AND HUMAN LIFE |
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by Alesandra Ibobo | 19-03-2018 12:23
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Pollution is a major environmental problem affecting people all over the world. Ecologists and environmentalists look at the amount of oxygen in water as an indication of healthiness. Water rich in oxygen is healthy. As we know oxygen is necessary for respiration in all living thing. Oxygen is also necessary for the decomposition of organic matter.
When waste materials are passed into water, living things have to compete for oxygen with the decaying wastes. Some kind of organism need more oxygen than others. Ecologists and environmentalists have observed that those organisms which need a lot of oxygen are quick to disappear from a polluted body of water. The addition of nitrates and phosphate also indirectly decreases the amount of oxygen in water. Nitrates and phosphate are generally found in fertilizers. Phosphates are also added to laundry detergents. When these substances are washed from the land into streams and rivers, algae begin to multiply. With an increase in algae population decreases the amount of oxygen in the water. When algae and other organisms die, their decay uses up even more oxygen. Water in this condition will have a foul smell because of the large amount of decay occurring in it. Such water is useless to most living things including man. Keeping water rich in oxygen is not the only way of keeping it healthy. The water must also be free of poisonous chemicals. Pesticides that do not break down into harmless materials are a source of poisonous chemicals. Heavy metals such as lead and mercury are another. Water can be healthy for other living things yet it can be unsafe for humans to use. In most cases, when water is treated for humans to use, large particles and deadly micro-organisms are removed. So, let's be careful of things we dispose into our water, because they come back anyways as harmful into the things we eat, and the water we drink. Poisonous chemicals, however, usually pass through water treatment processes as, dissolved salt.
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2 Comments
Hello Alesandra!
Water pollution is indeed a serious problem for every living creature.
If the amount of oxygen that water contains decrease, animals such as fish will lose their habitat, and also if decay gets worse people won't be able to use it. As the report says, most causes of the lost of clean water is because of chemicals thrown away by human in many forms. Some are from laundry products and in even worse cases, it could be filthy water from factories that aren't filtered at all. What kind of regulations can be practiced by law to prevent any more pollution?
Posted 20-03-2018 22:18
Hello Alesandra, thanks for sharing your urge!
Although 70% of Earth is covered by water, we do not know how much it costs and can be counted into certain values.
What else can we participate in misuse and overuse of water in our living?
Posted 20-03-2018 14:43