Trends in atmospheric particulate matter in Dhaka, Bangladesh, and the vicinity

Rana, Md. Masud; Sulaiman, Norela; Sivertsen, Børge; Khan, Firoz; Nasreen, Sabera

doi:10.1007/s11356-016-6950-4

Cited by 49 publications

(34 citation statements)

References 23 publications

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“…128 Air pollution is a significant problem specially in the urban areas of Bangladesh with marked temporal and directional variations in particulate matter concentrations. 129 A study to evaluate the emissions and air quality in megacities found Dhaka to have the poorest air quality in respect of total suspended particles (TSP), sulfur dioxide (SO 2 ), and nitrogen dioxide (NO 2 ) among the megacities, and the pollutant levels were far beyond the WHO standard. 130 One recent study involving Dhaka City found elevated concentrations of the number, surface and mass distributions of particulate matters; fine particles (0.5-1.0 µm) derived from vehicle emissions were dominating the aerosol particles number concentrations.…”

Section: Air Pollutionmentioning

confidence: 99%

Cardiovascular Disease in Bangladesh: A Review

2017

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Abstract:Like elsewhere, cardiovascular disease (CVD) is an increasingly important cause of morbidity and mortality in Bangladesh. Over the past few decades, because of epidemiological transition, the prevailing disease pattern in this country changed from predominantly communicable to predominantly non-communicable disease, CVD contributes to the latter a lot. Actually, CVD particularly coronary artery disease (CAD) is getting epidemic proportion day by day. Hypertension and heart failure are on the rise, whereas the prevalence of acute rheumatic fever is declining. However, despite some efforts, reliable data concerning various aspects of CVD is inadequate at present. The current prevalence of hypertension, CAD, rheumatic fever and rheumatic heart disease and stroke may be 20-25%, 4-6%, <1/1000, 0.3-1.0% respectively. Besides conventional risk factors for different CVD, genetic predisposition and some novel issues like high salt intake, arsenicosis, hypovitaminosis D and air pollution may play important role in the aetiopathogenesis of CVD in this population. Formulation of appropriate policy and more emphasis on preventive strategy may help combat CVD in Bangladesh.

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Section: Air Pollutionmentioning

confidence: 99%

Cardiovascular Disease in Bangladesh: A Review

2017

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“…Valid data capture of PM 10 and PM 2.5 concentrations in Gazipur during the study period was 94% and 93%, respectively. [4], the meteorology of Dhaka and its vicinity is divided mainly into two groups: (1) dry season (November to April) and (2) wet season (May to October). For air quality study, dry season is further divided into two classes: (a) winter (November to January) and (b) summer (February to April).…”

Section: Observation Site and Data Collection Air Monitoring Station (mentioning

confidence: 99%

“…The city of Dhaka, Bangladesh, and its vicinity severely suffer from high level of particulate matter (PM) concentrations in the atmosphere, especially during dry season (November-April) [1][2][3]. The region experiences several air pollution episodes in winter (November-January) when the atmosphere gets polluted with PM 2.5 concentrations 10-14 times greater than the World Health Organization guideline value [4]. Most of this pollution originates from the local sources like brick manufacturing kilns, vehicles, and resuspended dusts [5,6].…”

Section: Introductionmentioning

confidence: 99%

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Investigating Incursion of Transboundary Pollution into the Atmosphere of Dhaka, Bangladesh

Rana

Mahmud

Khan³

et al. 2016

Advances in Meteorology

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Concentrations of particulate matter (PM) in Dhaka, Bangladesh, during November 2013 to April 2014 were found 7-8 times higher than the World Health Organization (WHO) guideline value. Probability of contribution of transboundary sources to this PM pollution was investigated through different approaches. Ninety-six-hour backward trajectories with every 3-hour interval were computed and clustered into 06 groups based on angle distance matrix. Probabilities of individual cluster to be associated with different ranges of coarse and fine particles were studied. Gazipur station near Dhaka city was found to have 68% probability of receiving PM10concentration higher than 150 μg/m3when air masses followed the route of Middle East through the Himalayan valley to the station. This channel was identified as the main route of PM transport to Bangladesh during dry season. Transboundary source-regions were spotted by concentration weighted trajectory (CWT) method and also by the monthly average aerosol optical depths (AOD) over South Asia. North-western Indian regions, Nepal and its neighboring areas, and Indian state of West Bengal were identified as the most probable zones that might have contributed to PM pollution in Gazipur, Dhaka. November to January was the high time the station had experienced fine particles from those transboundary regions.

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“…Air pollution has become a serious concern for public health in many urban areas of Bangladesh [1,2]. Annual averages of fine particulate matter (PM 2.5 ) concentrations in the air of Dhaka during 2013 to 2014 were found about six times greater than the standards for PM 2.5 in Bangladesh [3]. Higher pollution scenarios usually happen in dry season (November -April), which poses great threat to the human health in the country.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Idle Emissions from the On-Road Vehicles in Dhaka

Rana¹,

Khan²,

Azad³

et al. 2020

J. Sci. Res.

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Vehicle emission is a major source of air pollution in Dhaka. Old fleet, lack of maintenance, improper traffic and parking management, overloading, fuel adulteration etc. are responsible for high emissions from the vehicle sector. In this study, vehicle emissions have been measured on-road in Dhaka using an Automotive Gas Analyzer and Smoke Opacity Meter to determine the existing vehicle emission scenario in the city. Concentrations of carbon monoxide (CO) and hydrocarbons (HC) in the emissions from CNG/gasoline vehicles, and opacity of the emissions from diesel vehicles were measured. The results were compared with the corresponding national limit values. It was found that all types of CNG vehicles performed very well with more than 80% satisfying the corresponding limit values. Private cars ranked at the top in performance among the CNG/gasoline vehicles. Diesel vehicles were found as the worst polluters in the vehicle sector; emissions from about 75% of the diesel vehicles had opacity more than 65 HSU, the national limit value for emissions from diesel vehicles. Motor cycles were also highly polluting; 60% of the motor cycles emitted CO and HC concentrations higher than the respective national emission limit values.

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Trends in atmospheric particulate matter in Dhaka, Bangladesh, and the vicinity

Cited by 49 publications

References 23 publications

Cardiovascular Disease in Bangladesh: A Review

Cardiovascular Disease in Bangladesh: A Review

Investigating Incursion of Transboundary Pollution into the Atmosphere of Dhaka, Bangladesh

Estimation of Idle Emissions from the On-Road Vehicles in Dhaka

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