Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand

The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science...

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Main Authors:	Wittaya Tala, Thipsukon Khumsaeng
Language:	English
Published:	Faculty of Science, Chiang Mai University 2020
Subjects:	Chiang Mai urban street canyon PM polycyclic aromatic hydrocarbons tourism urban area
Online Access:	https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=11196 http://cmuir.cmu.ac.th/jspui/handle/6653943832/69914
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Institution:	Chiang Mai University
Language:	English

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spelling	th-cmuir.6653943832-699142020-10-08T08:36:17Z Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand Wittaya Tala Thipsukon Khumsaeng Chiang Mai urban street canyon PM polycyclic aromatic hydrocarbons tourism urban area The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so. The aim of this study was to identify pollutant sources by characterizing polycyclic aromatic hydrocarbons (PAHs) during the month of important public holidays in Chiang Mai City that is the main province of Thailand’s tourism. Twice daily sampling was performed throughout the month of April including early-, mid- and late- month. The 16 PAHs were observed in respirable particulate matter (PM10). The average concentration of PAHs was 31.35 ng/m3. Moreover, it was found that the high concentrations were ranging from 25.24-62.81 ng/m3 (mid-month), while those were 20.89-27.04 ng/m3 (early- and late-month). Most of PAHs concentrations were not different between morning and afternoon except the afternoon of recently post-public holidays. The average carcinogenic polycyclic aromatic hydrocarbons (c-PAHs) was 56.80 %. High range of c-PAHs was obtained in mid-month (54.85-67.75 %), while normal period was 51.51-55.23% (early- and late-month). The ratios of polycyclic aromatic hydrocarbons indicate that vehicle emission was the main source in this period. The values of health risk assessment of PAHs-bound PM10 (i.e. TEQ, MEQ. BaPE and ICR) indicate that a high potential risk for travelers, street vendors and pedestrians was observed after the exposure to particulate matters in the urban area of Chiang Mai City, especially mid-month, which is the period of public holidays of Thailand, while the early-and late-month were found in the similar concentration. Therefore, it can be concluded that the distribution of pollutants inside urban areas was not different between morning and afternoon due to urban street canyon. Moreover wind speed was not a significantly influencing factor on PM10 level. This study points out the air quality during public holidays period for a city of tourism and it further demonstrates that tourism should pay more attention to implement serious improvement measures of air pollution and have a thorough system optimization. 2020-10-08T08:36:17Z 2020-10-08T08:36:17Z 2020 Chiang Mai Journal of Science 47,5 (Sep 2020), p.984-1000 2465-3845 https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=11196 http://cmuir.cmu.ac.th/jspui/handle/6653943832/69914 Eng Faculty of Science, Chiang Mai University
institution	Chiang Mai University
building	Chiang Mai University Library
continent	Asia
country	Thailand Thailand
content_provider	Chiang Mai University Library
collection	CMU Intellectual Repository
language	English
topic	Chiang Mai urban street canyon PM polycyclic aromatic hydrocarbons tourism urban area
spellingShingle	Chiang Mai urban street canyon PM polycyclic aromatic hydrocarbons tourism urban area Wittaya Tala Thipsukon Khumsaeng Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand
description	The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.
author	Wittaya Tala Thipsukon Khumsaeng
author_facet	Wittaya Tala Thipsukon Khumsaeng
author_sort	Wittaya Tala
title	Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand
title_short	Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand
title_full	Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand
title_fullStr	Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand
title_full_unstemmed	Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand
title_sort	determination of particle-bound pah concentrations within a heavily-trafficked street canyon in chiang mai, thailand
publisher	Faculty of Science, Chiang Mai University
publishDate	2020
url	https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=11196 http://cmuir.cmu.ac.th/jspui/handle/6653943832/69914
_version_	1681752806898270208

Determination of Particle-bound PAH Concentrations within a Heavily-trafficked Street Canyon in Chiang Mai, Thailand

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