Air pollution kills seven million people every year in the world: WHO

At 9:10 a.m. on January 20, 2024, Dhaka's AQI score of 191 placed it fifth among all cities in the world with the worst air quality.

The air quality index gave Dhaka's air the label of "unhealthy."

First, second, and third place on the list went to Kolkata, India; Karachi, Pakistan; and Mumbai, India; their AQI scores were 241, 241, and 207, respectively.
The air quality is deemed "unhealthy for sensitive groups" when the AQI value for particle pollution is between 101 and 150; "unhealthy" when it is between 150 and 200; "very unhealthy" when it is between 201 and 300; and "hazardous" when it is 301 or higher, posing major health risks to locals.

Read More: Worst "air pollution" of the world Friday in Dhaka

People may find out how clean or dirty a city's air is, as well as any potential health risks, by using the Air Quality Index (AQI), a daily reporting tool.

Particulate matter (PM10 and PM2.5), NO2, CO, SO2, and ozone are the five pollutants that make up Bangladesh's Air Quality Index (AQI).
Air pollution has always been a problem in Dhaka. Usually, the winter months bring on unhealthy air quality, which then improves during the monsoon.

The World Health Organization (WHO) estimates that air pollution kills seven million people globally annually, mostly as a result of higher mortality rates from heart disease, stroke, lung cancer, chronic obstructive pulmonary disease, and acute respiratory infections.

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