Pollution is an undesirable change in the physical, chemical or biological characteristics of air, water, soil or food that can adversely affect the health, survival or activities of human or other living organisms. The effects of water pollution are far-reaching and affect not only the environment, but human beings and animals as well. The pollution in Dhaka has reached alarming levels, threatening public health, ecosystems and economic growth.
The objective of the report is to create awareness regarding the environmental issues in Dhaka. The types of pollution focused in this assignment are mainly air pollution, water pollution and noise pollution. Everyday we face these pollution in the city some way or the other. The report identifies these problems and their underlying causes. Further, it addresses the major problems created in Dhaka city due to pollution and its impact on our future generation.
3.1 AIR POLLUTION IN DHAKA CITY:
Dhaka, the capital city of Bangladesh (location 23.42N and 90.22E) has an estimated population of more than 8 million. Air pollution has emerged as a serious problem in the city. Blackenning of the city air and reduced visibility can be observed in some areas at times even with unaided eyes. Episodes of choking smells and irriatating eyes are common. The weather of Dhaka is tropical with lowest temperature varying between 54-790F and highest between 77-950F. During mansoon (June-August), there is very high precipitation of rainfall being on the average greater than 30 cm per month. During winter (November-January), there is hardly any rainfall (