Dhaka's Air Quality: A Comprehensive Guide
Current Air Quality in Dhaka
As of 2 July 2023, Dhaka's air quality remains in the moderate zone with an AQI score of 83 at 9:03 AM. This improvement is primarily attributed to heavy rainfall in the area.
Dhaka's Air Quality Rankings
Dhaka's air quality has consistently ranked among the worst in the world. Here are some notable rankings: * 32nd on the list of most polluted cities worldwide (August 25, 2024) * 11th on the list of cities with the worst air quality (July 2, 2023) * 26th on the list of cities with the worst air quality (March 15, 2023) * 30th on the list of cities with the worst air quality (January 10, 2023)
Causes of Dhaka's Poor Air Quality
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Traffic congestion: Dhaka is heavily congested with vehicles, leading to significant exhaust emissions. *
Industrial emissions: Industrial activities, particularly in the tannery and brick kiln industries, release harmful pollutants into the air. *
Construction and demolition activities: Dust and particulate matter generated from construction and demolition sites contribute to air pollution. *
Biomass burning: The burning of wood, crop residues, and other biomass materials releases smoke and pollutants.
Health Impacts of Air Pollution in Dhaka
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Respiratory illnesses: Air pollution can cause respiratory problems such as asthma, bronchitis, and pneumonia. *
Cardiovascular diseases: Exposure to air pollution has been linked to an increased risk of heart disease and stroke. *
Cancer: Some air pollutants, such as particulate matter and benzene, are known carcinogens. *
Other health effects: Air pollution can also lead to eye irritation, headaches, and fatigue.
Steps to Improve Dhaka's Air Quality
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Reduce traffic congestion: Promote public transportation, walking, and cycling as alternatives to driving. *
Control industrial emissions: Implement stricter regulations and provide incentives for industries to adopt cleaner technologies. *
Manage construction and demolition activities: Require construction sites to implement dust control measures. *
Promote clean energy sources: Encourage the use of renewable energy and electric vehicles. *
Raise awareness about air pollution: Educate the public about the health risks of air pollution and encourage them to reduce their own contributions.
Conclusion
Dhaka's air quality remains a significant environmental and health concern. While the situation has improved slightly due to recent rainfall, it is crucial that concerted efforts continue to be made to tackle the root causes of air pollution in the city. By reducing traffic congestion, controlling industrial emissions, and promoting clean energy, we can work towards a cleaner and healthier Dhaka for all its residents.
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