Air pollution
Dhaka tops list of world’s most polluted cities
Dhaka ranked top among the world’s most polluted cities on Tuesday morning, with an Air Quality Index (AQI) of 169 recorded at 10:00am.
The air quality was categorised as “unhealthy”, indicating a significant risk to public health, according to AQI standards.
Kuwait’s Kuwait City ranked 2nd in the list with an AQI of 157 while India’s Delhi (155) is in the third position.
An AQI reading between 151 and 200 is considered “unhealthy”, while 101-150 is classified as “unhealthy for sensitive groups”. Levels of 201-300 are deemed “very unhealthy”, and readings above 301 are labelled “hazardous”, posing severe health risks.
The AQI, which tracks daily air quality, indicates how polluted the air is and the potential health impact on residents.
In Bangladesh, AQI measurements are based on five key pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO₂), carbon monoxide (CO), sulfur dioxide (SO₂), and ozone.
Dhaka has long battled air pollution, with conditions typically worsening in winter and improving during the monsoon season.
According to the World Health Organization, air pollution is responsible for an estimated seven million deaths worldwide each year, mainly from stroke, heart disease, chronic obstructive pulmonary disease, lung cancer, and acute respiratory infections.
2 days ago
Dhaka ranks 4th among world’s most polluted cities
Dhaka, the densely populated capital of Bangladesh, ranked 4th among the world’s most polluted cities on Sunday morning, recording an Air Quality Index (AQI) of 138 at 11:37 am.
The air quality was classified as ‘unhealthy for sensitive groups’, indicating potential health risks for the general population, according to the AQI scale.
Hanoi in Vietnam, kolkata in India and Delhi in India occupied the top three positions on the list, with AQI scores of 155, 142 and 142 respectively.
According to AQI standards, a reading between 101 and 150 is considered ‘unhealthy for sensitive groups’, 151 to 200 ‘unhealthy’, 201 to 300 ‘very unhealthy’, while levels above 301 are deemed ‘hazardous’, posing serious 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 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.
4 days ago
Dhaka’s air quality raises health concerns for vulnerable groups
Dhaka, the densely populated capital of Bangladesh, ranked seventh among the world’s most polluted cities on Friday morning, recording an Air Quality Index (AQI) of 117 at 9:10 am.
According to the AQI scale, the air quality was classified as “unhealthy for sensitive groups,” indicating potential health risks for vulnerable individuals.
Nepal’s Kathmandu, India’s Delhi, and Thailand’s Chiang Mai topped the list of most polluted cities, with AQI scores of 235, 231, and 165, respectively.
An AQI reading between 101 and 150 is considered “unhealthy for sensitive groups,” while 151–200 is deemed “unhealthy.” Levels between 201 and 300 are classified as “very unhealthy,” and readings above 301 are considered “hazardous,” posing serious health risks.
The AQI measures daily air quality, indicating how clean or polluted the air is and outlining potential health effects on the population.
In Bangladesh, AQI calculations are based on five major pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide, carbon monoxide, sulphur dioxide, and ozone.
Dhaka has long struggled with severe air pollution, which typically worsens during the winter months and improves during the monsoon season.
According to the World Health Organization, air pollution causes approximately seven million deaths globally each year, primarily due to stroke, heart disease, chronic respiratory illnesses, lung cancer, and acute respiratory infections.
13 days ago
Dhaka's air 'unhealthy for sensitive groups'
The overcrowded capital of Dhaka ranked 16th among cities with the worst air quality on Monday morning, recording an AQI score of 103 at 9:25 am.
According to the AQI index, the city’s air was classified as “unhealthy for sensitive groups,” indicating potential health risks for vulnerable populations.
India’s Delhi, Nepal's Kathmandu and Thailand’s Chiang Mai topped the list with AQI scores of 210, 167, and 165, respectively.
An AQI between 50 and 100 is considered “moderate,” while 101 to 150 is deemed “unhealthy for sensitive groups.” Readings between 151 and 200 are classified as “unhealthy,” 201 to 300 as “very unhealthy,” and anything above 300 is regarded as “hazardous,” posing serious health risks.
The Air Quality Index (AQI) is used to report daily air quality, indicating how clean or polluted the air is and outlining possible health effects.
In Bangladesh, the AQI is based on five key pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO₂), carbon monoxide (CO), sulfur dioxide (SO₂), and ozone.
Dhaka has long struggled with air pollution. Air quality typically worsens during winter and improves with the monsoon rains.
According to the World Health Organization, air pollution causes an estimated seven million deaths globally each year, largely due to stroke, heart disease, chronic obstructive pulmonary disease, lung cancer, and acute respiratory infections.
17 days ago
Dhaka's air `unhealthy for sensitive groups’
The overcrowded capital of Dhaka ranked 9th among cities with the worst air quality on Monday morning, recording an AQI score of 131 at 8:15 am.
According to the AQI index, the city’s air was classified as “unhealthy for sensitive groups,” indicating potential health risks for vulnerable populations.
Thailand’s Chiang Mai, Pakistan’s Lahore, and India’s Delhi topped the list with AQI scores of 198, 184, and 166, respectively.
An AQI between 50 and 100 is considered “moderate,” while 101 to 150 is deemed “unhealthy for sensitive groups.” Readings between 151 and 200 are classified as “unhealthy,” 201 to 300 as “very unhealthy,” and anything above 300 is regarded as “hazardous,” posing serious health risks.
The Air Quality Index (AQI) is used to report daily air quality, indicating how clean or polluted the air is and outlining possible health effects.
In Bangladesh, the AQI is based on five key pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO₂), carbon monoxide (CO), sulfur dioxide (SO₂), and ozone.
Dhaka has long struggled with air pollution. Air quality typically worsens during winter and improves with the monsoon rains.
According to the World Health Organization, air pollution causes an estimated seven million deaths globally each year, largely due to stroke, heart disease, chronic obstructive pulmonary disease, lung cancer, and acute respiratory infections.
24 days ago
Dhaka tops global air pollution index
Dhaka ranked first among the world’s most polluted cities on Friday morning, with an Air Quality Index (AQI) of 195 at 9:30am.
The city’s air was classified as ‘unhealthy’, indicating a serious risk to public health, according to the AQI report.
India’s Delhi and Vietnam’s Hanoi ranked second and third, with AQI scores of 192 and 171 respectively.
In contrast, San Francisco in the United States and Oslo in Norway recorded some of the cleanest air, with AQI scores of 6 and 11 respectively.
According to the AQI scale, a reading between 50 and 100 is considered ‘moderate’, meaning air quality is generally acceptable, although sensitive people should limit prolonged outdoor activity.
Levels between 101 and 150 are described as ‘unhealthy for sensitive groups’, while 151 to 200 is ‘unhealthy’. Readings of 201 to 300 are ‘very unhealthy’, and levels above 301 are considered ‘hazardous’, posing severe health risks.
The AQI provides daily information on air quality, indicating how clean or polluted the air is and the possible health effects. In Bangladesh, the AQI is based on five major pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO₂), carbon monoxide (CO), sulphur dioxide (SO₂), and ozone.
Dhaka has long struggled with air pollution. Air quality usually worsens in winter and improves during the monsoon season.
The World Health Organization (WHO) estimates that air pollution causes around seven million deaths worldwide each year, mainly due to stroke, heart disease, chronic obstructive pulmonary disease, lung cancer, and acute respiratory infections.
27 days ago
Dhaka ranks 4th most polluted city with ‘unhealthy’ air
Dhaka, the densely populated capital of Bangladesh, ranked 4th among the world’s most polluted cities on Tuesday morning, recording an Air Quality Index (AQI) of 171 at 08:45 am.
Today's air was classified as ‘unhealthy’, referring to a serious health threat, according to the AQI index.
Delhi of India, Chiang Mai Thailand, and Kinshasa of Democratic Republic of the Congo occupied the first three spots on the list, with AQI scores of 228, 22o and 171, respectively.
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 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.
1 month ago
Dhaka ranks 9th among world’s most polluted cities
Dhaka, the densely populated capital of Bangladesh, ranked ninth among the world’s most polluted cities on Thursday morning, recording an Air Quality Index (AQI) of 160 at 10:45 am.
Today, the city’s air was classified as ‘unhealthy’, indicating a serious health threat, according to the AQI report.
Kathmandu in Nepal, Tashkent in Uzbekistan, and Karachi in Pakistan occupied the first, second, and third spots on the list, with AQI scores of 197,192 and 186 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 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.
1 month ago
Dhaka air turns deadly, ranks highest in global pollution
Dhaka, the densely populated capital of Bangladesh, ranked first among the world’s most polluted cities on Wednesday morning, recording an Air Quality Index (AQI) of 315 at 08:53 am.
Today, the city’s air was classified as ‘Hazardous’, indicating a severe health risks, according to the AQI report.
Lahore in Pakistan, Kolkata in India and Beijing in China occupied the second, third, and fourth spots on the list, with AQI scores of 237, 197, and 183 respectively.
Batam in Indonesia recorded the world’s cleanest air, with an AQI score of 0.
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.
Dhaka tops global pollution chart with ‘very unhealthy’ AQI of 240
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 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.
2 months ago
Severe air pollution pushes Dhaka to second spot globally
Dhaka, the densely populated capital of Bangladesh, ranked second among the world’s most polluted cities on Thursday morning, recording an Air Quality Index (AQI) of 246 at 8:35 am.
Today, the city’s air was classified as ‘very unhealthy’, indicating a serious health threat, according to the AQI report.
Baghdad in Iraq, Lahore in Pakistan, and Kolkata in India occupied the first, third and fourth spots on the list, with AQI scores of 559, 246, and 208 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 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.
2 months ago