Dhaka’s air quality is in the `unhealthy` zone this morning.
With an air quality index (AQI) score of 161 at 9:20 am, the capital of Bangladesh ranked seventh in the list of cities worldwide with the worst air quality.
India’s Delhi, Pakistan’s Lahore, and Karachi occupied the first, second, and third spots, with AQI scores of 237, 193 and 182 respectively.
An AQI between 151 and 200 is considered ‘unhealthy’ while between 201–300 is ‘very unhealthy’, and 301–400 is `hazardous`, posing severe health risks to residents.
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.
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