United News of Bangladesh

Dhaka, the densely populated capital of Bangladesh, ranked first among the world’s most polluted cities on Monday morning, recording an Air Quality Index (AQI) of 332 at 9:23 am. Today, the city’s air was classified as ‘hazardous’, indicating a serious health threat, according to the AQI report. Lahore in Pakistan, Delhi in India, and Kolkata in India occupied the second, third, and fourth spots on the list, with AQI scores of 266, 233, and 189 respectively. According to the AQI scale, a reading between 50 and 100 is considered ‘moderate’, with generally acceptable air quality, though sensitive individuals should limit prolonged outdoor exertion. AQI levels of 101–150 are ‘unhealthy for sensitive groups’, 151–200 is ‘unhealthy’, 201–300 is ‘very unhealthy’, and readings above 301 are considered ‘hazardous’, posing severe health risks. The AQI, which reports daily air quality, informs residents how clean or polluted the air is and highlights potential health effects. In Bangladesh, the AQI is calculated based on five key pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. Dhaka’s air quality 2nd worst in the world this morning Dhaka has long struggled with air pollution. Air quality usually deteriorates in winter and improves during the monsoon season. The World Health Organization (WHO) estimates that air pollution causes about seven million deaths worldwide each year, primarily from stroke, heart disease, chronic obstructive pulmonary disease, lung cancer, and acute respiratory infections.

Following Cyclone Mocha passing through yesterday, Dhaka's air quality is ‘moderate’ this morning. With an air quality index (AQI) score of 94 at 8:45 am, Dhaka ranked 17th in the list of cities worldwide with the worst air quality. Pakistan’s Lahore, China’s Beijing and Chengdu occupied the first three spots on the list, with AQI scores of 172, 162, and 157, respectively. An AQI between 150 and 200 is considered 'unhealthy', AQI between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents. In Bangladesh, the AQI is based on five criteria 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. Air pollution consistently ranks among the top risk factors for death and disability worldwide. As per the World Health Organization (WHO), air pollution kills an estimated seven million people worldwide every year, largely as a result of increased mortality from stroke, heart disease, chronic obstructive pulmonary disease, lung cancer and acute respiratory infections.  

Dhaka's air quality continued to be in the 'unhealthy' zone this morning (March 20, 2023). With an air quality index (AQI) score of 133 at 9 am, Dhaka ranked 15 in the list of cities worldwide with the worst air quality. An AQI between 101 and 150 is considered 'unhealthy', particularly for sensitive groups. Iraq’s Baghdad, Pakistan's Lahore and South Korea's Incheon occupied the first three spots in the list, with AQI scores of 259, 257 and 194, respectively. Read More: River pollution: Artists take to unique protest in Habiganj   An AQI between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents. In Bangladesh, the AQI is based on five criteria 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. Air pollution consistently ranks among the top risk factors for death and disability worldwide. Read More: Govt committed to doing all it can to defeat pollution: Environment Minister As per the World Health Organization (WHO), air pollution kills an estimated seven million people worldwide every year, largely as a result of increased mortality from stroke, heart disease, chronic obstructive pulmonary disease, lung cancer and acute respiratory infections.

Dhaka continues to dominate the list of cities with the worst air quality in the world.