Daffodil International University

Faculty of Science and Information Technology => Environmental Science and Disaster Management => Topic started by: nfe fouzia on April 16, 2014, 01:42:24 PM

Title: Air pollution choking Dhaka
Post by: nfe fouzia on April 16, 2014, 01:42:24 PM

DHAKA, 3 April 2009 (IRIN) - Thousands of people in Bangladesh’s capital, Dhaka, are dying prematurely because of air pollution, say health experts.
 
An estimated 15,000 premature deaths, as well as several million cases of pulmonary, respiratory and neurological illness are attributed to poor air quality in Dhaka, according to the Air Quality Management Project (AQMP), funded by the government and the World Bank.

The World Health Organization (WHO) says vehicular air pollution is a major cause of respiratory distress in urban Bangladesh.
 
“If pregnant mothers come across excessive pollution, it may cause premature death of their children,” said Soofia Khatun, a professor of paediatrics at the Institute of Maternal and Child Health.

According to the National Institute of Diseases of Chest and Hospital (NIDCH), nearly seven million people in Bangladesh suffer from asthma; more than half of them children. Cases of children suffering from bronchitis and chronic coughs have also shot up in recent years, it said.

“Children breathe more air relative to their lung size than adults. They spend more time outdoors, often during midday and afternoons when pollutant levels are generally highest,” said Khondkar Ibrahim Khaled, chief of Kochi Kanchar Mela, a children’s welfare organization.

Title: Re: Air pollution choking Dhaka
Post by: nfe fouzia on April 16, 2014, 01:44:25 PM

According to the Department of Environment (DoE), the density of airborne particulate matter (PM) reaches 463 micrograms per cubic metre (mcm) in the city during the dry season (December-March) - the highest level in the world.

Mexico City and Mumbai follow Dhaka with 383 and 360mcm respectively, the DoE says.
 
WHO air quality guidelines (2005) recommend a maximum acceptable PM level of 20mcm; cities with 70mcm are considered highly polluted. Airborne lead is the worst of the harmful PMs.
 
“By penetrating the lungs and entering the blood stream, lead may cause irreversible neurological damage as well as renal disease, cardiovascular effects, and reproductive toxicity,” Humayun Kabir, head of the medicine department of Barisal Medical College, told IRIN, adding: “Children are especially susceptible to impaired intelligence due to lead poisoning.”

The phasing out of petrol-driven two-stroke auto-rickshaws in 2003 and their replacement with four-stroke versions which use a much cleaner burning fuel (compressed natural gas), significantly decreased the volume of air contaminants. But, according to DoE sources, a sharp increase in the number of vehicles and construction sites in 2004-2008 led to a deterioration in Dhaka’s air quality.
 
The density of airborne fine particulate matter 2.5 micrometers (one millionth of a metre) or smaller in diameter (PM2.5) in the city dropped from 266mcm in 2003 to 147mcm in 2004. However, AQMP statistics from 2007 show 191.83 mcm of PM2.5 (fine particular matter) in Dhaka’s air.

Airborne particulates are considered harmful when they are 10 micrometers (PM 10) or smaller in diameter. PM 2.5 is four times finer than PM10, hence more harmful.
Title: Re: Air pollution choking Dhaka
Post by: nfe fouzia on April 16, 2014, 01:45:12 PM

Main pollution sources

According to the DoE, old, poorly serviced vehicles, brick kilns (there are currently about 1,000 in and around Dhaka), dust from roads and construction sites, and toxic fumes from industrial sites are major sources of air pollution.

Bangladesh Road Transport Authority (BRTA) said some 15,000 mostly reconditioned and second hand cars were sold in Dhaka in 2008 - up 46 percent from 2007. "Even people in the middle income bracket [US$450-800 per month] can afford cars now," said Abdul Haq, owner of Haq’s Bay, a leading car seller in Dhaka.
 
Environmental activists are encouraged by the creation of the government’s Clean Air and Sustainable Environment (CASE) project in Bangladesh which is funded by the World Bank and expected to start from 1 July 2009. The aim is to adopt sustainable environmental initiatives in key polluting sectors.
Title: Re: Air pollution choking Dhaka
Post by: ABM Nazmul Islam on June 11, 2014, 05:16:53 PM
.................then, we are vulnerable to health effect as facing short-term effects include irritation to the eyes, nose and throat, and upper respiratory infections such as bronchitis, headaches, nausea, coupled with Long-term health effects like chronic respiratory disease, lung cancer, heart disease, and even damage to the brain, nerves, liver, or kidneys, getting us the brink of havoc.......however, does it really matter to our authority concerned?
Title: Re: Air pollution choking Dhaka
Post by: Dr. Md. Rausan Zamir on August 14, 2014, 08:39:21 PM
No matter what is the sufferings of people in terms  premature deaths,  cases of pulmonary, respiratory and neurological illness and so forth , if the door of the authority concerned doesn't take the necessary measure, hearing our plea, then the articles, reports, post erring, bill board writing or any form of awareness related to pollution of in Dhaka city aims to pacify it will only quest thrust of researchers or activities, like will be poring water in a desert sand.

Title: Re: Air pollution choking Dhaka
Post by: irina on October 30, 2014, 02:53:27 PM
How can our children survive!
What are we doing for their safe survival?
Title: Re: Air pollution choking Dhaka
Post by: ABM Nazmul Islam on November 26, 2014, 03:50:32 PM
has there been any proved evidence in supporting the date where it has been said thousands premature death registering owing to air pollution?
Title: Re: Air pollution choking Dhaka
Post by: drrizona on November 30, 2014, 12:56:02 PM
Environment and health should be a big concern for every one . To reduce air pollution
we should modify  our public transport so that people feel  more convenient  to use public transport.
Title: Re: Air pollution choking Dhaka
Post by: shimo on December 02, 2014, 10:26:07 AM
Informative post
Title: Re: Air pollution choking Dhaka
Post by: ABM Nazmul Islam on March 29, 2015, 03:43:26 PM
honderous
Title: Re: Air pollution choking Dhaka
Post by: shimo on April 15, 2015, 01:35:15 PM
Nice post
Title: Re: Air pollution choking Dhaka
Post by: imran986 on August 13, 2015, 09:57:02 AM
Excellent Post !!!
Title: Re: Air pollution choking Dhaka
Post by: asitrony on August 24, 2015, 09:36:22 AM
ONce again Dhaka has been selected for second worst city to live in the world. The result published for 2014-15 survey based on environmental pollution and infrastructural condition.


Thanks
Title: Re: Air pollution choking Dhaka
Post by: Shekh Moniruzzaman on October 10, 2015, 11:44:05 AM
We need to more conscious about our environment to remove air pollution.
Title: Re: Air pollution choking Dhaka
Post by: sisyphus on November 23, 2015, 10:21:52 AM
I must say I am deeply concerned about my lovely city Dhaka. We can't just let it die like this
Title: Re: Air pollution choking Dhaka
Post by: silmi on November 23, 2015, 01:06:16 PM
Thanks for sharing.. Very informative
Title: Re: Air pollution choking Dhaka
Post by: Kazi Taufiqur Rahman on November 26, 2015, 05:56:21 PM
Nice post. Thanks for sharing.
Title: Re: Air pollution choking Dhaka
Post by: azharul.esdm on July 11, 2016, 03:12:28 PM
Its an important concern for us. We have to minimize the utilization of fossil fuel. We should use different renewable energy source.
Title: Re: Air pollution choking Dhaka
Post by: naser.te on July 30, 2016, 01:09:48 AM
Necessary post.