Nature and the environment were balanced on the day when life and creatures were created on the earth millions of years ago. Nature and the environment played a role in maintaining this balance. People have gradually developed their own environment along the path of evolution of civilization. Man-made environment is the product of the evolution of his civilization. Man has accumulated various methods of science and technology with his new discovery talent, hard work and skill. Has acquired various materials for life development. So he has created his environment according to his own needs and tastes. Its development in this environment is an indication of its destruction.
Air pollution and various reactions: There are differences in the nature and method of pollution. Air is one of our natural resources. That air pollution is all over the world today. This is a serious problem for everyone's health. The amount of carbon dioxide in the air is constantly increasing. As a result, the temperature in the weather is gradually increasing. Premature rains, storms, fog are the result. Cultivation in such weather is uncertain. Fog and a mixture of gases emitted as a result of combustion of oil and coal.
Its harmful power is deadly. Consequences of such contamination as headache, shortness of breath, asthma, chronic bronchitis, lung cancer. Exhaust fumes from various vehicles come in contact with sunlight and produce light chemical fumes. Oxide and
Water pollution: Water pollution is another curse of modern civilization. The water of the world's oceans, rivers, ponds, canals, etc. is being polluted in various ways. Prosperous towns and cities have sprung up along the river. Modern mills, textile mills, coal mills, sugar mills, paper mills, herbal oil mills, tanneries, etc. have been established. Garbage from these factories is constantly polluting the river water. Alkaline, ammonia, cyanide, naphthalene, phenol and various chemical water contaminants are coming from different industrial areas every day. Almost all river water in Bangladesh is polluted.
Reservoirs are responsible for pollution of ponds, canals and bells, From this the soil gets polluted "and" the drinking water gets polluted... The fish of the sea river Khalil pond is also getting various pollution. Various infectious diseases are spreading. Occasionally it takes the form of epidemics. How many lives are snatched away by death. In this way, public health is being destroyed day after day.
Noise pollution: Noise pollution is one of the important, aquatic problems of this age. This problem is increasing at an alarming rate day by day. The level of noise pollution is highest in the city. Sometimes there is the horn of the car, the loud noise of the factory, the sound of firecrackers, the sound of the radio, the sound of the television, the shouts of the people, the drunkenness of the festival, the melody of the microphone. The consequences of noise pollution are terrible. There are many and many types of sources of noise pollution. You need to stop playing mic or cassette player everywhere without proper reason. Unnecessary horn blowing and hydraulic horn blowing should be stopped legally. Arrangements have to be made so that no factories can be set up in the residential areas. According to the Forest and Environment Act 1997, areas up to 100 meters from hospitals, educational institutions and some other institutions have been identified as silent areas.
People are most aware of the prevention of noise pollution. Dhaka is now a city of noise pollution. After the removal of two-stroke from Dhaka city in 2003, the level of air pollution as well as noise pollution has been reduced, which has given some relief to the city dwellers. But their relief did not last long. People do not immediately realize the dangers of noise pollution because of its long duration. So meanwhile people's attention is less. For this reason, the residential areas of Dhaka, hospitals, educational institutions — nothing is getting relief from the hydraulic horns of the vehicles, the loud noise of the factory, the reckless noise of the mic and CD player.
Horror of Noise Pollution: Noise pollution not only causes annoyance but also closes the arteries of the human body, increases the circulation of adrenaline and forces the heart to work faster. Consistent loud noises increase the risk of heart attack and stroke. According to specialist doctors, noise pollution can cause neurological impairment. Experts believe that persistent noise pollution causes hearing loss and permanent damage to nerves. According to them, people living in the capital are putting extra stress on the heart, kidneys and brain. Noise pollution makes children irritable. They are losing their hearing, losing their devotion. This is having an effect on their education. All types of noise pollution can lead to poor sleep, hearing, mental and physical health. Noise pollution of any kind harms pregnant mothers. Noise pollution can cause permanent mental retardation in people.
Conclusion: All countries today are concerned about the problem of environmental pollution. The very existence of civilization is facing a crisis today. So in 1972, the United Nations General Assembly on "Human Environment" was held in Stockholm. In 1992, a 12-day Earth Summit was held in Rio de Janeiro, Brazil. The constitution of Bangladesh has also imposed conditions to prevent environmental pollution. World Environment Day is being celebrated here on 5th June every year. Today, environmental pollution predicts a terrible danger to human civilization. The need to prevent environmental pollution at any cost in order to build a safer world for future generations is undeniable.
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