T ravelling and Source Point Identification of Some Transboundary Air Pollutants by Trajectory Analysis in Sathkhira, Bangladesh

Saadat, A. H. M.; Rahman, Mahfuzur; Hasan, S M Kamrul; Jahangir, A. T. M.

doi:10.13179/canchemtrans.2013.01.01.0011

Cited by 2 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because of wind direction in the dry season (North, North-westerly wind mainly dominate which travel over the polluted region of India and then enter Bangladesh) and the long-range traveling ability of PM-2.5, the transboundary effect contributes significantly to PM concentration in Bangladesh [16]. A few studies [12][17] [18] revealed that the air of Dhaka city is getting some unwanted PM-2.5 from other countries through long-range air mass traveling. This study aims to find out the probable contribution of long-range transportation of PM-2.5 on Dhaka's atmosphere during the time interval from November-2019 to April-2020.…”

Section: Introductionmentioning

confidence: 99%

Impact of Trans-Boundary Pollution (PM-2.5) on the Air Quality of Dhaka City in Bangladesh

Dihan

Nayeem

Choudhury

2021

Chem. Eng. Res. Bull.

View full text Add to dashboard Cite

Clean air is a basic need of human beings for its existence. In recent years, air pollution in city areas, especially in Dhaka and Chittagong, has become a significant threat to health and well-being. Dhaka is found to suffer a high level of pollution during the dry season, which is from November to April, especially for Particulate Matter, PM2.5, concentration. From December to February this situation is found to be the worst crossing the WHO guidelines and National Ambient Air Quality Standard. Bangladesh is surrounded by countries with the fastest-growing economy like India and China who use coal-burning technologies for different purposes such as producing power and running mills. They release the lion’s share of the air pollutants in South Asia and these pollutants easily get transported to neighboring countries. This is known as transboundary pollution. This study investigates the contribution of transboundary transportation of PM-2.5 in the air quality of Dhaka city. Ninety-Six hours of air mass back trajectories were computed using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT-4) model and those trajectories were grouped into 6 clusters. Probability calculation showed that Dhaka city air has a higher probability of getting pollutants from long-range sources when air masses traveled through North, West, and North-West direction covering the North Eastern and North-Western territories of India, Nepal, and its neighboring areas. Concentration Weighted Trajectory (CWT) analysis also supported that those areas could be potential sources of getting unwanted PM-2.5 on our atmosphere. Chemical Engineering Research Bulletin 21(2020) 114-120

show abstract

Section: Introductionmentioning

confidence: 99%

Impact of Trans-Boundary Pollution (PM-2.5) on the Air Quality of Dhaka City in Bangladesh

Dihan

Nayeem

Choudhury

2021

Chem. Eng. Res. Bull.

View full text Add to dashboard Cite

show abstract

Airmass Trajectories and Long Range Transport of Pollutants: Review of Wet Deposition Scenario in South Asia

Kulshrestha

Kumar

2014

Advances in Meteorology

View full text Add to dashboard Cite

This paper presents a review of airmass trajectories and their role in air pollution transport. It describes the concept, history, and basic calculation of air trajectories citing various trajectory models used worldwide. It highlights various areas of trajectory applications and errors associated with trajectory calculations. South Asian region receives airmasses from Europe, Middle East, Africa, and Indian Ocean, and so forth, depending upon the season. These airmasses are responsible for export and import of pollutants depositing in nearby states. Trajectory analysis revealed that soil is contributed by the dust storms coming from Oman through Gulf and Iran, while most of black carbon (BC) sources are located in India. A detailed review of trajectories associated with wet deposition events indicated that airmasses coming from Europe and Middle East carry high concentration of acidic pollutants which are deposited in Himalayan ranges. Similarly, trajectory analysis revealed that acidic pollutants from continental anthropogenic sources are transported to an ecosensitive site in Western Ghats in India and the outward fluxes of anthropogenic activities of Indo-Gangetic region are transported towards Bay of Bengal. Hence, transboundary and long range transport of pollutants are very important issues in South Asia which need immediate attention of scientists and policy makers.

show abstract

T ravelling and Source Point Identification of Some Transboundary Air Pollutants by Trajectory Analysis in Sathkhira, Bangladesh

Abstract: It is evident from the study that transboundary traveling has a significant effect on air quality and the pollutants traveled firmly beyond the boundary line of Bangladesh.

Cited by 2 publications

References 35 publications

Impact of Trans-Boundary Pollution (PM-2.5) on the Air Quality of Dhaka City in Bangladesh

Impact of Trans-Boundary Pollution (PM-2.5) on the Air Quality of Dhaka City in Bangladesh

Airmass Trajectories and Long Range Transport of Pollutants: Review of Wet Deposition Scenario in South Asia

Contact Info

Product

Resources

About