Environment pollution means a remarkable, bad and harmful change in chemical, physical and biological characteristics of environment. Environment problem has become a serious problem in our country. This problem is on the rise now. In our cities the air is constantly polluted by smoke from mills and factories and from carbon monoxide. It is believed that the excess use of underground water by man is increasing the dimension of arsenic in water. But for the sake of irrigation man has to use underground water.
On the other hand, man is directly responsible for sound pollution. Every kind of engine driven vehicles creates sound more or less. To some extent sound is not observed properly. So that violation of sound limit is causing sound pollution especially in the city areas. As a result, the students, the officials and the patients of city areas are being a cruel victim of sound pollution, and our natural environment is being greatly endangered. To sum up, the water we drink, the air we breathe in and the food we take are not always absolutely pure. The ground we walk on in both urban and rural areas are polluted by uncollected garbage, Water is polluted as a result of untreated sew rage. Industrial waste and insecticides alarmingly pollute water.
Human dirt and filth is no less responsible for the environment pollution. Unplanned sanitation system is booming up the water pollution day by day, Environment pollution leads us to decay and death gradually. Therefore, to be happy and gay in life the steps to check the pollution of environment are to be taken by the concerted efforts of the govu and the commoners in no time.
Arsenic Pollution –
Arsenic is a poisonous white compound of brittle element. Recently this element is detected to be present in large quantities in the tubewell water of many districts in Bangladesh. Arsenic poisoning occurs when its intake exceeds the limit of tolerance. It becomes chronic when small amount of arsenic enters a body repeatedly. It is converted into less toxic form in the liver and exerted with urine. When the amount of ingestion is greater than the exertion, arsenic accumulates in the hair. nail, skin. liver and bone. It is presumed that arsenic interferes with cell metabolism causing different systematic changes. Unless immediate attention is paid by the concerned agencies of the Bangladesh govt and relevant others, arsenic poisoning of ground water may become unmanageable in future. So we all should be aware of the dreadful effects of arsenic pollution and never drink water from a source which is not sure to be arsenic free.
Water Pollution –
Water. one of the most important elements of our environment. is polluted in many ways. Man pollutes water by throwing waste into it. Farmers use chemical fertilizers and insecticides in their fields. When rain and floods wash away some of these chemicals, they get mixed with water in rivers. canals and ponds. Mills and factories also throw their poisonous chemicals and waste products Into rivers and canals and thus pollute the water. Water vehicles also pollute rivers by dumping oil food waste and human waste into them. Unsanitary latrines and unsafe drains standing on river and canal banks are also responsible for further pollution. Many people suffer from polluted water because this water carries germs of many diseases. When people drink polluted water, they are attacked by the water borne diseases as cholera and diarrhoea. We all should be conscious of the bad effects of water pollution to save ourselves from the dangers of this pollution.
The elements of our surroundings such as air, water, soil, weather, climate, environment. If the natural relationships among these elements are disturbed, the ecological balance is hampered and this is termed environment pollution. Our environment is being polluted in many ways. First of all, with the increase of population, the number of mills. factories and vehicles Increases, they produce more toxic fumes and more carbon mono-oxide which cause air pollution. Secondly, water is polluted by industrial waste, poisonous chemicals and other contaminated or harmful substances: Forests and trees are being cut down and thus the ecological balance is being hampered. We have noise from motor vehicles, aeroplanes, domestic appliance and so on. These cause sound pollution which is not less harmful than any other sort of pollution. All these types of pollution have harmful effects on humans, animals and plants. Air pollution causes various respiratory diseases and water pollution causes water-borne diseases. Sound pollution affects the capacity of our hearing. Again all pollution causes an ecological imbalance. So we should keep the environment pollution-free to ensure a safe environment for us.