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** More curbs on govt officials’ foreign trips ** Children take bath in the Buriganga River in Dhaka to ward off the scorching summer heat. This photo was taken from Buriganga embankment on Monday. NN photo ** Taposh wants shops shut early ** Economists differ with 6.22 per cent inflation rate rather it is about 12 per cent ** Public transport services in capital New law with a provision Tk 5 crore fine on cards ** Sweden takes formal decision to apply for NATO membership ** Drug Admin bans eight types of medicines ** Interpol's Dhaka office requests India to send PK Halder back to Bangladesh ** Dollar price jumps to Tk87.50 ** PK Halder to be brought back following set procedure: FM ** Sri Lanka out of petrol, economy in a precarious condition: PM Wickremesinghe ** Social resistance against grabbers a must to protect Tangail, Gazipur hillocks ** PK Halder on 3-day remand in West Bengal ** In front of Gulshan Society Mosque in the capital, a vested quarter filling parts of Gulshan-Banani Lake creating a land bridge effectively bypassing security checkpoints that protect Gulshan North Diplomatic Zone. This photo was taken on Sunday. NN photo ** All necessary steps will be taken to bring PK Halder back: AG ** Russia's ‘brutal invasion’ of Ukraine is faltering: NATO ** Vladimir Putin ‘seriously ill’: Ex British spy claimed ** It may take three to six months to bring back PK Halder: ACC prosecutor ** Ten killed in ‘racially motivated’ shooting in Buffalo, US ** People stand in queue to buy mustard oil from a small mill at Bata Signal in the Elephant Road area of Dhaka on Sunday. One customer is allowed to buy maximum 2 litres of oil, depending on production. Agency photo ** Fugitive chops off policeman's hand in Ctg ** PK Halder hooked in Kolkata: Government's easy plundering policy created too many such cases ** One of PK Halder's mansions in Ward No. 15 of Ashoknagar in North 24 Parganas district which has been sealed by the ED. Photo: Collected ** Scamstar PK Halder arrested in India ** Worse still to come, Lanka’s new PM warns **

Dhaka again world’s most polluted city

24 January 2022


News Desk  :
The densely populated capital of Bangladesh has once again topped the list of world cities with the worst air quality.
On Sunday, Dhaka’s Air Quality Index (AQI) was recorded at 254 at 10.36 am, and it was classified as 'poor' or  'very unhealthy', reports UNB.
China’s Shenyang and India’s Kolkata occupied the next two spots, with AQI scores of 197 and 188  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.
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.
A report by the Department of Environment (DoE) and the World Bank in March 2019 pointed out that the three main sources of air pollution in Dhaka "are brick kilns, fumes from vehicles and dust from construction sites".
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.
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.

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