Environmental Pollution

Environmental Pollution can be defined as any unwanted change in chemical,physical, or biological features of any component of the environment, ie, water, air, or soil, which can cause damaging effects on several forms of living systems. Water pollution is caused by natural or human activities and makes water unusable. The polluted water cannot be used for drinking, domestic activities, irrigation of crops, or industrial purposes. The major causes of water pollution are municipal wastewater, industrial waste, and agricultural waste. Air pollution is caused by the introduction of chemical components, particulate matter, or biological materials, which causes discomfort to humans or other living organisms. The significant causes of air pollution are carbon dioxide (caused by deforestation and combustion of fossil fuel), sulfur dioxide, and sulfur oxide (caused by an eruption of sulfur-containing compounds and combustion of fossil fuel). Industrialization and urbanization are the leading causes of soil pollution due to improper waste disposal. When sound becomes annoying, it disrupts normal human activities. In urban areas transport system is the principal source of noise pollution; the other causes are construction works, industrial noise, and loudspeakers. Global warming is a significant consequence of environmental pollution, a major global concern. Acid rain is caused by air pollution, which kills trees and acidifies soil and water. Environmental pollution is also a serious threat to human health. It is responsible for noncommunicable diseases like cancer, cardiovascular diseases, asthma, etc. [Md. Zakir Hossain Hawlader]