Publish: 09:03, 16 Jan, 2025

Dhaka’s air quality ranks world's 2nd worst on Thursday

Online Desk
Dhaka’s air quality ranks world's 2nd worst on Thursday
Photo - Collected

Dhaka, the over populated capitalof Bangladesh, ranked as the city with the second-worst air quality globally, recording an Air Quality Index (AQI) score of 240 at 8:16am on Thursday morning, reports UNB.

Thursday’s air was classified as “very unhealthy”, referring to a severe health threat, according to the AQI index.

When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.

India’s Kolkata, Mumbai and Pakistan’s Karachi respectively occupied the first, third and fourth spots on the list, with AQI scores of 243, 223 and 215 respectively.

The AQI, an index for reporting daily air quality, informs people how clean or polluted the air of a certain city is and what associated health effects might be a concern for them.

The AQI in Bangladesh is based on five pollutants: particulate matter (PM10 and PM2.5), NO2, CO, SO2, and ozone.

Dhaka has long been grappling with air pollution issues. Its air quality usually turns unhealthy in winter and improves during the monsoon.

As per World Health Organization (WHO), air pollution kills an estimated seven million people worldwide every year, mainly due to increased mortality from stroke, heart disease, chronic obstructive pulmonary disease, lung cancer, and acute respiratory infections.

Bd-Pratidin English/ AM

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