Dhaka, the bustling capital of Bangladesh, recently found itself ranked as the second most polluted city in the world. On a Tuesday morning, the Air Quality Index (AQI) hit a staggering 288. This score falls into the ‘very unhealthy’ category, signaling serious health threats for its residents.
Other cities in the region also faced troubling air quality, with Delhi in India topping the list at 306, followed by Lahore and Kolkata. The AQI provides critical information about air quality, ranging from ‘moderate’ to ‘hazardous’ levels. A reading between 50 and 100 is acceptable, while anything above 300 is dangerous and can lead to severe health problems.
The AQI measures five major pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide, carbon monoxide, sulfur dioxide, and ozone. Sadly, Dhaka’s air quality is often worse in winter and improves during the monsoon season.
Globally, air pollution is a significant health issue. The World Health Organization reports that it contributes to approximately seven million deaths yearly. Problems include stroke, heart disease, and respiratory infections. This alarming data underscores the urgent need for cities like Dhaka to take action.
Experts recommend several solutions. Urban planners advocate for more green spaces and improved public transportation. These changes could help reduce vehicle emissions, a major pollution source. Additionally, raising awareness about air quality can empower communities to keep informed and take protective measures.
In recent years, social media has shed light on this pressing issue. Users share their daily struggles with air pollution, often posting AQI updates and tips for minimizing exposure. This grassroots movement shows how public concern is growing.
Air pollution isn’t just an environmental issue; it’s a public health crisis that affects everyone. As cities grapple with this challenge, collaborative efforts between governments, communities, and individuals may offer hope for cleaner air.
Learn more about air quality and its effects on health from the [World Health Organization](https://www.who.int/news-room/fact-sheets/detail/ambient-(outdoor)-air-quality-and-health).
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