Dhaka ranked second in the list of world cities with most poor air quality on Tuesday morning. The metropolis’s air quality index (AQI) score was 221 at 9:30 am. An AQI between 201 and 300 is said to be ‘very unhealthy’, while a reading of 301 to 400 is considered 'hazardous', posing serious health risks to residents. India’s Delhi and Poland’s Krakow occupied the first and third spots in the list, with AQI scores of 244 and 211, respectively. An AQI between 101 and 200 is considered 'unhealthy', particularly for sensitive groups while a reading of 201 and 300 is said to be 'poor'. In Bangladesh, the AQI is based on five criteria pollutants -- Particulate Matter (PM10 and PM2.5), NO2, CO, SO2 and Ozone. Read more: Dhaka keeps grapping with ‘very unhealthy' air 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. Breathing polluted air has long been recognised as increasing a person’s chances of developing a heart disease, chronic respiratory diseases, lung infections and cancer, according to several studies. Read more: Dhaka's air 2nd most polluted in the world this morning 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 ranked as the  second most polluted city in the world with ‘very unhealthy’ air quality on Tuesday morning. Dhaka’s air quality index (AQI) score was 268 at 10 am today. An AQI between 201 and 300 is said to be ‘very unhealthy’, while a reading of 301 to 400 is considered 'hazardous', posing serious health risks to residents. India’s Kolkata and Kyrgyzstan’s Bishkek occupied the first and thirs spots in the list, with AQI scores of 278 and 230, respectively. Read more: Dhaka's air quality turns ‘very unhealthy' this morning An AQI between 101 and 200 is considered 'unhealthy', particularly for sensitive groups. 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. Breathing polluted air has long been recognised as increasing a person’s chances of developing a heart disease, chronic respiratory diseases, lung infections and cancer, according to several studies. 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. The worsening air quality of Dhaka city is threatening the health status and life of its residents.

Dhaka's air quality showed no improvement Friday morning as it continued to be in the 'unhealthy' zone. With an air quality index (AQI) score of 166 at 9 am, the metropolis ranked sixth in the list of world cities with the worst air quality. An AQI between 101 and 200 is considered 'unhealthy', particularly for sensitive groups. Read more: Dhaka’s air ‘unhealthy’ this morning With the advent of winter, the city’s air quality starts deteriorating sharply due to the massive discharge of pollutant particles from construction works, rundown roads, brick kilns and other sources. Pakistan’s Lahore, India’s Delhi, and China’s Wuhan occupied the first three spots in the list, with AQI scores of382, 373 and 178, respectively. An AQI between 201 and 300 is said to be 'poor', while a reading of 301 to 400 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. Read more: Dhaka’s air ‘unhealthy’ this morning as winter approaches 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. Breathing polluted air has long been recognised as increasing a person’s chances of developing a heart disease, chronic respiratory diseases, lung infections and cancer, according to several studies. 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 remain 'unhealthy for sensitive groups' on Tuesday despite intermittent late monsoon drizzle a day before. With an air quality index (AQI) score of 132 at 9am, the metropolis ranked 9th in the list of world cities with the worst air quality. The United Arab Emirates’ Dubai, Pakistan’s Lahore and Karachi occupied the first three spots, with AQI scores of 196, 196 and 154, respectively. An AQI between 101 and 200 is considered 'unhealthy', particularly for sensitive groups. Similarly, an AQI between 201 and 300 is said to be 'poor', while a reading of 301 to 400 is considered 'hazardous', posing serious health risks to residents. Also read: Dhaka’s air turns ‘unhealthy for sensitive groups’ AQI, an index for reporting daily air quality, is used by government agencies to inform 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. Dhaka has long been grappling with air pollution issues. Its air quality usually turns unhealthy in winter and improves during the monsoon. With the advent of winter, the city’s air quality starts deteriorating sharply due to the massive discharge of pollutant particles from construction work, rundown roads, brick kilns and other sources. Air pollution consistently ranks among the top risk factors for death and disability worldwide. Breathing polluted air has long been recognised as increasing a person’s chances of developing a heart disease, chronic respiratory diseases, lung infections and cancer, according to several studies. Also read: Dhaka’s air quality turns ‘moderate’ 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 on Tuesday slipped into the 'unhealthy' zone on Tuesday morning, despite heavy late monsoon showers a day before. With an air quality index (AQI) score of 161 at 9 am, the metropolis ranked third in the list of world cities with the worst air quality. Pakistan’s Lahore and Kuwait’s Kuwait City occupied the first two spots in the list, with AQI scores of 178 and 163, respectively. An AQI between 101 and 200 is considered 'unhealthy', particularly for sensitive groups. Also read: Dhaka’s air quality now ‘moderate' On the other hand, an AQI between 50 and 100 is considered ‘moderate’ with an acceptable air quality. However, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. Similarly, an AQI between 201 and 300 is said to be 'poor', while a reading of 301 to 400 is considered 'hazardous', posing serious health risks to residents. AQI, an index for reporting daily air quality, is used by government agencies to inform 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. Dhaka has long been grappling with air pollution issues. Its air quality usually turns unhealthy during winter and improves during monsoon. Also read: Dhaka’s air quality remains 'moderate' With the advent of winter, the city’s air quality starts deteriorating sharply due to the massive discharge of pollutant particles from construction works, rundown roads, brick kilns and other sources. Air pollution consistently ranks among the top risk factors for death and disability worldwide. Breathing polluted air has long been recognised as increasing a person’s chances of developing heart disease, chronic respiratory diseases, lung infections and cancer, according to several studies. 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.

After remaining ‘unhealthy’ a day before, Dhaka's air quality became 'moderate' on Tuesday morning --thanks to intermittent monsoon showers. With an air quality index (AQI) score of 91 at 10.30am, the metropolis ranked 16th in the list of world cities with the worst air quality. Saudi Arabia’s Riyadh, South Africa’s Johannesburg and Chile’s Santiago occupied the first three spots in the list, with AQI scores of 178, 164 and 158, respectively. An AQI between 50 and 100 is considered ‘moderate’ with an acceptable air quality. However, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. Also read: Dhaka's air back to 'unhealthy' zone On the other hand, an AQI between 101 and 200 is considered 'unhealthy', particularly for sensitive groups. Similarly, an AQI between 201 and 300 is said to be 'poor', while a reading of 301 to 400 is considered 'hazardous', posing serious health risks to residents. AQI, an index for reporting daily air quality, is used by government agencies to inform 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. Also read: Dhaka’s air quality turns 'moderate' Dhaka has long been grappling with air pollution issues. Its air quality usually turns unhealthy during winter and improves during monsoon. With the advent of winter, the city’s air quality starts deteriorating sharply due to the massive discharge of pollutant particles from construction works, rundown roads, brick kilns and other sources. Air pollution consistently ranks among the top risk factors for death and disability worldwide. Breathing polluted air has long been recognised as increasing a person’s chances of developing heart disease, chronic respiratory diseases, lung infections and cancer, according to several studies. 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.