Environment
Despite rain, Dhaka’s air quality ‘moderate’ this morning
Dhaka, the overcrowded capital city of Bangladesh, has ranked 20th on the list of cities with the worst air quality with an AQI score of 82 at 10:25 am this morning (July 17, 2025).
Today Dhaka’s air was classified as ‘moderate,’ referring to a light health threat, according to the AQI index.
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.
Egypt’s Cairo, Dubai of United Arab Emirates, and Democratic Republic of the Congo’s Kinshasa cities respectively occupied the first, second and third spots on the list, with AQI scores of 220, 164, and 161 respectively.
Dhaka’s air ‘unhealthy for sensitive groups’ this morning
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.
2 hours ago
Some Australian dolphins use sponges to hunt fish — but it’s not as easy as it looks
A small group of bottlenose dolphins in Shark Bay, Australia, has developed an unusual hunting method: using marine sponges as tools to catch fish. But new research shows that mastering this skill is far from easy.
The dolphins wear the sponge on their beaks like a protective mask, allowing them to dig through the seabed without injury and flush out fish like the elusive barred sandperch. This technique, passed down from mother to calf, disrupts the dolphin’s echolocation abilities, making it harder to locate prey.
“It has a muffling effect, in the way that a mask might,” explained Ellen Rose Jacobs, a marine biologist at Aarhus University and co-author of the study, published Tuesday in Royal Society Open Science. Despite this, dolphins adapt and continue using echolocation clicks to guide their foraging.
Southern Europe scorched by extreme heatwaves as wildfire risks escalate
Only about 5% of the local dolphin population—roughly 30 individuals—have mastered this behavior, likely because of the years of practice required.
Sponge hunting, researchers say, is a rare cultural behavior passed exclusively from mother to offspring. Marine biologist Janet Mann of Georgetown University called it a delicate, inherited skill that not every dolphin learns to master.
Source: Agency
23 hours ago
Dhaka’s air continues to be ‘moderate’
Dhaka, the overcrowded capital city of Bangladesh, has ranked 15th on the list of cities with the worst air quality with an AQI score of 88 at 9:40 am this morning (July 15, 2025).
Today Dhaka’s air was classified as ‘moderate,’ referring to a light health threat, according to the AQI index.
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.
Democratic Republic of the Congo’s Kinshasa, Vietnam’s Hanoi, and Chile’s Santiago cities respectively occupied the first, second and third spots on the list, with AQI scores of 195, 170, and 163 respectively.
Dhaka’s air again turns ‘moderate’
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.
2 days ago
Dhaka’s air again turns ‘moderate’
Under the influence of the rains, Dhaka, the overcrowded capital city of Bangladesh, has ranked 57th on the list of cities with the worst air quality with an AQI score of 55 at 9:25 am this morning (July 14, 2025).
Today Dhaka’s air was classified as ‘moderate,’ referring to a light health threat, according to the AQI index.
Even a day before, the Dhaka ranked seventh with an AQI score of 147 at the same time and the air quality was marked as ‘unhealthy for sensitive groups.’
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.
Democratic Republic of the Congo’ Kinshasa, Chile’s Santiago, and Vietnam’s Hanoi cities respectively occupied the first, second and third spots on the list, with AQI scores of 176, 167, and 167 respectively.
Rains likely in Dhaka, other divisions
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.
3 days ago
Rains likely in Dhaka, other divisions
Bangladesh Meteorological Department forecast rains across the country in 24 hours from 9am on Sunday.
“Light to moderate rain/thunder showers accompanied by temporary gusty wind is likely to occur at many places over Dhaka, Khulna, Barishal, Chattogram & Sylhet divisions and at a few places over Rangpur, Rajshahi & Mymensingh divisions with moderately heavy to heavy falls at places over the country,” said a Met office bulletin.
Day temperature may fall by (1-2)°C and night temperature may fall slightly over the country.
Rains likely to drench parts of the country
The axis of monsoon troughs runs through Punjab, Harryana, Uttar Pradesh, Bihar, Gangetic West Bengal to Assam across southern part of Bangladesh, it said.
One of its associated troughs extends up to North Bay. Monsoon is fairly active over Bangladesh and moderate over North Bay.
Country’s highest temperature was recorded at 37 degrees Celsius in Rajarhat uapzila of Rangpur on Sunday.
3 days ago
Dhaka’s air ‘unhealthy for sensitive groups’ this morning
Dhaka, the overcrowded capital city of Bangladesh, has ranked seventh on the list of cities with the worst air quality with an AQI score of 147 at 9:15 am this morning (July 13, 2025).
Today Dhaka’s air was classified as ‘unhealthy for sensitive groups,’ referring to a health threat, according to the AQI index.
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.
Chile’s Santiago, Pakistan’s Lahore and USA’s Minneapolis cities respectively occupied the first, second and third spots on the list, with AQI scores of 184, 176, and 175 respectively.
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.
Dhaka’s air quality continues to be ‘moderate’
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.
4 days ago
Dhaka’s air turns ‘moderate’ this morning
Dhaka, the overcrowded capital city of Bangladesh, has ranked 13th on the list of cities with the worst air quality with an AQI score of 97 at 8:58am this morning.
Today’s air was classified as ‘moderate,’ referring to a light health threat, according to the AQI index.
Democratic Republic of the Congo’ s Kinshasa, Indonesia’s Jakarta and Chile’s Santiago cities respectively occupied the first, second and third spots on the list, with AQI scores of 231, 177 and 160 respectively.
Dhaka’s air quality continues to be ‘moderate’
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious 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.
5 days ago
Dhaka’s air turns ‘unhealthy for sensitive groups’ after long time
Dhaka, the overcrowded capital city of Bangladesh, has ranked ninth on the list of cities with the worst air quality with an AQI score of 110 at 9:15 am this morning (July 11, 2025).
Today Dhaka’s air was classified as ‘unhealthy for sensitive groups,’ referring to a health threat, according to the AQI index. Though the air quality had been ‘moderate’ over the past few days, it today turned healthy for sensitive groups, worsening quality.
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.
Democratic Republic of the Congo’s Kinshasa, Uganda’s Kampala and Chile’s Santiago cities respectively occupied the first, second and third spots on the list, with AQI scores of 172, 167, and 167 respectively.
Dhaka’s air quality ‘moderate’ for long
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.
6 days ago
Dhaka’s air quality ‘moderate’ for long
Dhaka, the overcrowded capital city of Bangladesh, has ranked 30th on the list of cities with the worst air quality with an AQI score of 68 at 9:20 am this morning (July 9, 2025).
Today Dhaka’s air was classified as ‘moderate,’ referring to a light health threat, according to the AQI index. Under the influence of monsoon, the capital’s air quality continued to be ‘moderate.’
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.
Uganda’s Kampala, Democratic Republic of the Congo’s Kinshasa and United Arab Emirates’ Dubai cities respectively occupied the first, second and third spots on the list, with AQI scores of 159, 158, and 139 respectively.
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's air quality still in the 'moderate' range
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.
8 days ago
Dhaka’s air quality continues to be ‘moderate’
Dhaka, the overcrowded capital city of Bangladesh, has ranked 39th on the list of cities with the worst air quality with an AQI score of 64 at 9:20 am this morning (July 8, 2025).
Today Dhaka’s air was classified as ‘moderate,’ referring to a light health threat, according to the AQI index. Under the influence of monsoon, the capital’s air quality continued to be ‘moderate.’
When the AQI value for particle pollution is between 50 and 100, air quality is considered ‘moderate’, usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered ‘unhealthy for sensitive groups’, between 150 and 200 is ‘unhealthy’, between 201 and 300 is said to be 'very unhealthy', while a reading of 301+ is considered 'hazardous', posing serious health risks to residents.
Egypt’s Cairo, United Arab Emirates’ Dubai and Uganda’s Kampala cities respectively occupied the first, second and third spots on the list, with AQI scores of 160, 158, and 151 respectively.
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’s air quality continues to be ‘moderate’
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.
9 days ago