Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia
Abstract Large-scale biomass burning (BB) emits large amounts of aerosols that lead to transboundary smoke events and adversely impacts human health, whilst causing societal and environmental issues. High ambient PM2.5 concentration in the year 2019 based on New Malaysia Ambient Air Quality Standard...
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| Format: | Article |
| Language: | English |
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Springer
2022-05-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.210393 |
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| author | Nur Nazmi Liyana Mohd Napi Maggie Chel Gee Ooi Mohd Talib Latif Liew Juneng Mohd Shahrul Mohd Nadzir Andy Chan Li Li Samsuri Abdullah |
| author_facet | Nur Nazmi Liyana Mohd Napi Maggie Chel Gee Ooi Mohd Talib Latif Liew Juneng Mohd Shahrul Mohd Nadzir Andy Chan Li Li Samsuri Abdullah |
| author_sort | Nur Nazmi Liyana Mohd Napi |
| collection | DOAJ |
| description | Abstract Large-scale biomass burning (BB) emits large amounts of aerosols that lead to transboundary smoke events and adversely impacts human health, whilst causing societal and environmental issues. High ambient PM2.5 concentration in the year 2019 based on New Malaysia Ambient Air Quality Standard (NMAAQS) was identified as high pollution episodes, HP1 and HP2 on the east coast Peninsular Malaysia (ECPM). Meanwhile, the low PM2.5 concentration episodes are known as LP1 and LP2. The transboundary smoke events in Indochina and Indonesia are linked to HP1 (March–April) and HP2(August–September), respectively from backward trajectory and MERRA-2 model re-analyses weather data. The correlation analysis showed a significantly strong positive correlation (r) of black carbon (HP1: 0.91; HP2: 0.96), organic carbon (HP1: 0.90; HP2: 0.94), and sulphate (HP1: 0.80; HP2: 0.61) with the aerosol optical depth (AOD) levels during high pollution episodes. The synoptic weather condition and inter-monsoon in HP1 and southwest monsoon in HP2 introduce strong wind speed and favourable wind pattern that can initiate the long-range transport of high AOD and PM2.5 to the ECPM region. In conclusion, this study demystified the sources of BB emissions, the transport route of transboundary smoke events, their influence factors during different high pollution periods, and the links between aerosol species from local and nonlocal emissions with AOD levels and PM2.5 concentrations along the ECPM, which altogether provide crucial information on climate variability signal and can help in developing a corresponding strategy for high pollution episodes. |
| format | Article |
| id | doaj-art-e05d5a33f1ee468f8b9d18f84f4b2539 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2022-05-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-e05d5a33f1ee468f8b9d18f84f4b25392025-02-09T12:17:43ZengSpringerAerosol and Air Quality Research1680-85842071-14092022-05-0122712310.4209/aaqr.210393Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular MalaysiaNur Nazmi Liyana Mohd Napi0Maggie Chel Gee Ooi1Mohd Talib Latif2Liew Juneng3Mohd Shahrul Mohd Nadzir4Andy Chan5Li Li6Samsuri Abdullah7Insitute of Climate Change, Universiti Kebangsaan MalaysiaInsitute of Climate Change, Universiti Kebangsaan MalaysiaDepartment of Earth Sciences and Environment, Faculty of Sciences and Technology, Universiti Kebangsaan MalaysiaDepartment of Earth Sciences and Environment, Faculty of Sciences and Technology, Universiti Kebangsaan MalaysiaDepartment of Earth Sciences and Environment, Faculty of Sciences and Technology, Universiti Kebangsaan MalaysiaDepartment of Civil Engineering, University of Nottingham MalaysiaSchool of Environmental and Chemical Engineering, Shanghai UniversityAir Quality and Environment Research Group, Faculty of Ocean Engineering Technology and Informatics, University Malaysia TerengganuAbstract Large-scale biomass burning (BB) emits large amounts of aerosols that lead to transboundary smoke events and adversely impacts human health, whilst causing societal and environmental issues. High ambient PM2.5 concentration in the year 2019 based on New Malaysia Ambient Air Quality Standard (NMAAQS) was identified as high pollution episodes, HP1 and HP2 on the east coast Peninsular Malaysia (ECPM). Meanwhile, the low PM2.5 concentration episodes are known as LP1 and LP2. The transboundary smoke events in Indochina and Indonesia are linked to HP1 (March–April) and HP2(August–September), respectively from backward trajectory and MERRA-2 model re-analyses weather data. The correlation analysis showed a significantly strong positive correlation (r) of black carbon (HP1: 0.91; HP2: 0.96), organic carbon (HP1: 0.90; HP2: 0.94), and sulphate (HP1: 0.80; HP2: 0.61) with the aerosol optical depth (AOD) levels during high pollution episodes. The synoptic weather condition and inter-monsoon in HP1 and southwest monsoon in HP2 introduce strong wind speed and favourable wind pattern that can initiate the long-range transport of high AOD and PM2.5 to the ECPM region. In conclusion, this study demystified the sources of BB emissions, the transport route of transboundary smoke events, their influence factors during different high pollution periods, and the links between aerosol species from local and nonlocal emissions with AOD levels and PM2.5 concentrations along the ECPM, which altogether provide crucial information on climate variability signal and can help in developing a corresponding strategy for high pollution episodes.https://doi.org/10.4209/aaqr.210393Biomass burning smokeLong-range transportAODAerosol speciesEast coast Peninsular Malaysia |
| spellingShingle | Nur Nazmi Liyana Mohd Napi Maggie Chel Gee Ooi Mohd Talib Latif Liew Juneng Mohd Shahrul Mohd Nadzir Andy Chan Li Li Samsuri Abdullah Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia Aerosol and Air Quality Research Biomass burning smoke Long-range transport AOD Aerosol species East coast Peninsular Malaysia |
| title | Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia |
| title_full | Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia |
| title_fullStr | Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia |
| title_full_unstemmed | Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia |
| title_short | Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia |
| title_sort | contribution of aerosol species to the 2019 smoke episodes over the east coast of peninsular malaysia |
| topic | Biomass burning smoke Long-range transport AOD Aerosol species East coast Peninsular Malaysia |
| url | https://doi.org/10.4209/aaqr.210393 |
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