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  1. Welcome to our presentation
  2. ENVIRONMENTAL POLLUTION Presented by, Raihan Sikder(1128) Sanjoy Sengupta(1091) Bishwajit Chakraborty(1107) Md. Mahamudul Hasan(1112) Priyantu Das(1120)
  3. OVERVIEW 1)Introduction 2)Types of pollution 3)Air Pollution 4)Water Pollution 5)Noise Pollution 6)Soil Pollution 7)Conclusion
  4. Introduction Environmental pollution is defined as “The contamination of physical and biological components of the earth/atmosphere system to such an exent that normal environmental processes are adverserly affected.”
  5. Types Of Pollution Air Pollution Water Pollution Noise Pollution Soil Pollution
  6. Air Pollution Air pollution is contamination of the indoor or outdoor environment by any chemical,physical or biological agent that modifies the natural characteristics of the atmosphere.Air Pollution is the release of pollutants such as gases,particles,biological molecules etc. into the air that is harmful to human health and the environment.Chattogram facing air pollution from thousands of unfit vehicles reached 100 per cent against its maximum tolerable level of hard ridge smoke unit of 65 per cent.Besides,pollution from dusts has also reached 500 plus microgram though its tolerable level is considered 200 microgram suspended particulates matter. Environmentalists blamed smoked air caused by unfit vehicles,coupled with dusts from open space for such environmental degradation in the city.
  7. Water Pollution Water pollution is the contamination of water sources by substances which make the water unusable for drinking,cooking,cleaning,swimming and other activities.Water pollution is when waste chemicals or other particles cause a body of water(rivers,oceans,lakes) to become harmful to the fish and animals that need the water to survive.The River Karnaphuli-the lifeline of port city Chattogram-is gradually choking to death on indiscriminate dumping of household and industrial wastes,unchecked environmental pollution and unabated encroachment.From Tk9,000-crore government projects to a High Court directive to a master plan-nothing seems to be working to protect the river.Large-scale encroachment of the riverbed by establishing hundreds of household and commercial buildings and their wastes have continually shrunk the once mighty Karnaphuli to almost a canal.
  8. Noise Pollution Noise pollution can be defined as any disturbing or unwanted noise that interferes or harms humans or wildlife.People of different strata in Chattogram are facing noise pollution caused by the hydraulic horns,power generators and wielding engineering workshops located in and around residential areas.They said noise affects children physically and psychologically while normal life is being hampered by round-the-clock operations of the power generators in different posh residence in the city and wielding engineering workshops.Experts said noise pollutions have reached nearly 200 decibel against its tolerable level of 60 decibel.Department of Environment (DoE),Chattogram office sources said the noise pollution is very high in a few jam- packed places of the city including Bahaddarhat crossing,GEC crossing,Newmarket,Agrabad, Chawkbazar and Andarkillah.
  9. Soil Pollution Soil pollution in Chattogram is mainly caused by industrial activities including heavy metal pollution from industrial effluents and toxic chemicals from agricultural practices.Industrial activities in and around Chattogram have released untreated waste and toxic chemicals into the soil,resulting in severe soil pollution in some areas.Soil pollution in Chattogram is a significant environmental and health hazard for the city's residents.Soil pollution can lead to the accumulation of toxins in crops and foodstuffs,leading to serious health problems such as cancer,respiratory and skin diseases.Implementation of effective regulations and policies to control industrial activities and enforce environmental laws is essential to address the problem of soil pollution in Chattogram.It is also important to promote sustainable agricultural practices, including organic farming and the use of natural fertilizers to reduce the use of toxic chemicals.
  10. Conclusion The environmental pollution in Chittagong, Bangladesh is a significant issue that requires urgent attention and action from both the government and the private sector. To prevent pollution, it is essential to implement sustainable and environmentally friendly practices. These may include: 1. Encouraging and enforcing the use of pollution control technologies in industries, power plants, and transportation systems. 2. Properrr disposal of industrial and domestic waste, including the installation of treatment plants. 3. Promoting the use of renewable energy sources, such as solar and wind power, to reduce dependence on fossil fuels. 4. Implementing strict environmental regulations and monitoring systems and enforcing penalties for non-compliance. 5. Encouraging public awareness and education on the importance of environmental protection and pollution prevention. By implementing these measures, Chittagong can reduce its pollution levels and improve the quality of life for its residents. It is essential to take immediate action to prevent further damage to the environment and to promote sustainable development for the future.