Dhaka, the bustling capital of Bangladesh, recently topped the list of the world’s most polluted cities. On a Monday morning, it recorded a staggering Air Quality Index (AQI) score of 332, indicating that the air was classified as ‘hazardous.’ This situation poses serious health risks to the city’s residents.
Following Dhaka, Lahore in Pakistan had an AQI of 266, while Delhi and Kolkata in India recorded scores of 233 and 189, respectively. According to the AQI scale, readings above 300 are categorized as ‘hazardous’, meaning the air quality is extremely poor and can lead to severe health issues.
The AQI is a critical tool that informs citizens about air quality based on five pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. Each pollutant has its own health implications, especially for vulnerable groups like children and the elderly.
Bangladesh struggles with air pollution year-round, but the situation worsens in winter, possibly due to reduced rainfall and increased emissions from vehicles and industries. The monsoon season typically brings some relief, improving air quality dramatically.
According to the World Health Organization, air pollution is responsible for approximately seven million deaths annually. Causes include heart disease, stroke, lung cancer, and respiratory infections. This grim statistic is a wake-up call for many cities, including Dhaka.
Understanding the health impact of pollution is vital. Experts suggest that improving air quality requires collective action from both the government and the public. Initiatives like stricter vehicle emissions standards and increased green spaces can make a difference.
Social media trends reveal that many residents express their concerns online. Hashtags related to air quality have gained traction, with users sharing tips on how to protect themselves from pollution. This growing awareness could foster community efforts to address the issue.
In summary, the serious air quality in Dhaka reflects a broader global issue. Continuous monitoring and proactive measures are needed to ensure healthier air for city residents and beyond.
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