One of the huge source of water pollution is waste produce from industries, it produces pollutants that are very dangerous to the people and the environment. it is a serious problem for many countries like singapore.
- facilities in industry use freshwater to carry away waste from the plant and into water bodies.
- pollutants from industrial sources include:
- Abestos - this pollutant is a serious health hazard and carcinogenic. asbestos fibres can be inhaled and cause illnesses such as asbestosis, mesothelioma, lung cancer, intestinal cancer and liver cancer.
- lead - this is a metallic element and can cause health and enviromental problems. it is non-biodegradable substance so it is hard to break it down. when it contaminated the environment, it might harm the health of many animals, including humans, as it can prevent the action of bodily enzymes.
- mercury - this is also a metallic element and similarly, it can cause health and environmental problems. it is also non-biodegradable. mercury is harmful to animal's health as it can diseases through mercury poisoning.
- nitrates - more nitrates are often being washed from the soil and into water bodies due the increase use of fertilisers. this can result to eutrophication , which can greatly affect marine environments.
- phosphates - this substance affect the environment similarly as the nitrates.
- sulphur - this is a non-metallic substance that is harmful to the marine environment.
- oils - oil forms a think layer on the water surface, which prevents the marine plants from taking in light for photosynthesis. it is also harmful for fish and marine birds.
- petrochemicals - this is produce from gas or petrol and can be poisonus to marine life.
No comments:
Post a Comment