Dhaka, the bustling capital of Bangladesh, struggles with air quality issues. Recently, it ranked fourth for the worst air quality in the world, with an Air Quality Index (AQI) score of 165. This level is labeled ‘unhealthy’ and poses serious health risks.
For comparison, Lahore in Pakistan had the highest score at 182, followed by Manama in Bahrain at 172 and Kolkata in India at 166. Understanding AQI is vital—scores from 50 to 100 are considered ‘moderate’, while anything above 150 is increasingly hazardous, categorized as unhealthy or worse.
The AQI serves as a daily report on air cleanliness, measuring five pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. Residents are advised to limit outdoor activities, particularly sensitive individuals, when the AQI flees above 100.
Air pollution in Dhaka often worsens in winter, although it usually improves during monsoon season. The World Health Organization estimates that around seven million people die each year due to air pollution, which can lead to illnesses like heart disease, lung cancer, and respiratory infections.
Experts weigh in on the need for action. Dr. Habibullah Khan, an environmental scientist, states, “Immediate steps must be taken, from stricter regulations on emissions to public awareness campaigns.” Communities can help by advocating for greener practices and supporting legislation aimed at reducing pollution.
Public reactions are growing on social media, with many people voicing their concerns and calling for change. Hashtags like #CleanDhaka and #AirQualityMatters are trending as citizens rally for a healthier environment. Studies have included rising levels of urban awareness about air quality effects and increased calls for government intervention.
Addressing air pollution is a complex matter, but understanding the AQI and its implications is crucial. Knowledge empowers change, which is necessary for a cleaner, healthier Dhaka.
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