• Tuesday, Apr 07, 2020
  • Last Update : 08:16 pm

Dhaka ranks worst in AQI index Tuesday

  • Published at 09:00 pm February 25th, 2020
Air_Pollution-Mehedi-Hasan
Air polution in Dhaka Mehedi Hasan/Dhaka Tribune

Upscale residential areas like Gulshan, Baridhara among most polluted ones

Bangladesh’s capital Dhaka has ranked first among cities with the worst air quality, despite light rain through the daytime.

According to Air Visuals, Dhaka had an Air Quality Index (AQI) score of 215 at 8:40pm on Tuesday. The air was classified as "very unhealthy."

Air quality in different parts of Dhaka, including upscale residential areas such as Gulshan, Baridhara and BashundharaR/A have been experiencing “very unhealthy” air quality for quite a long time.

According to Air Visuals, air quality in Bashundhara, Gulshan, and Baridhara areas had scores of 225, 215, and 197, respectively. 

airvisual.com

Cambodia’s Phnom Penh, Delhi and China’s Hangzhou occupied the second and third spots in the list of cities with the worst air quality with AQI scores of 177 for each individual city.

When the AQI value is between 201 and 300, a city dweller is more likely to be affected and people with respiratory diseases are advised to limit outdoor activities.

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.

In Bangladesh, the AQI is based on five criteria pollutants – Particulate Matter (PM10 and PM2.5), NO2, CO, SO2, and Ozone (O3).

The Department of Environment has also set national ambient air quality standards for these pollutants. These standards aim to protect against adverse human health impacts.

Dhaka has long been grappling with air pollution. Its air quality usually improves during monsoon.