Changing pattern of springtime biomass burning over Peninsular Southeast Asia (PSEA) in recent decades DOI Open Access
Saginela Ravindra Babu, Neng‐Huei Lin

Authorea (Authorea), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 8, 2023

The focus of this study is to present the recent changes in BB activity over PSEA by considering decadal changes, 5-year ensemble mean analysis, and long-term trends from twenty years (2001-2020) Moderate Resolution Imaging Spectroradiometer (MODIS) active fire counts. results revealed that overall springtime significantly decreased past decade (2011-2020) compared previous (2001-2010). Surprisingly, individual monthly analysis substantially March, whereas April it increased (2011 2020). Further, means revealed, northern March sharply during 2006–2010, moderately 2011-2015 followed a profound decrease 2016-2020. Whereas, April, showed pronounced increase 2016-2020 periods Laos rest PSEA. observed are strongly reflected aerosols gases. MERRA-2 reanalysis total surface mass concentration-PM, black carbon, MOPITT satellite carbon monoxide (CO) significant strong enhancement was evident April. Finally, trend shows increasing Cambodia, decreasing found These findings have important implications for future management strategies regional climate region.

Language: Английский

Effect modification of fine particulate matter (PM2.5) related hospital admissions by temperature in Thailand: a nationwide time-series study DOI
Wissanupong Kliengchuay, Bo Wen,

Thant Sin Aye

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121467 - 121467

Published: March 1, 2025

Language: Английский

Citations

0
Assessment of Transboundary PM2.5 from Biomass Burning in Northern Thailand Using the WRF-Chem Model DOI Creative Commons

Kevalin Inlaung,

Chakrit Chotamonsak, R. Macatangay

et al.

Toxics, Journal Year: 2024, Volume and Issue: 12(7), P. 462 - 462

Published: June 26, 2024

Air pollution, particularly PM2.5, poses a significant environmental and public health concern, in northern Thailand, where elevated PM2.5 levels are prevalent during the dry season (January-May). This study examines influx patterns of transboundary biomass burning (TB PM2.5) this region 2019 using WRF-Chem model. The model's reliability was confirmed through substantial correlations between model outputs observations from Pollution Control Department (PCD) Thailand at 10 monitoring stations. findings indicate that TB significantly influences local levels, often surpassing contributions sources. began January southern directions, intensifying shifting northward, peaking March with highest proportions. Elevated persisted April declined May. Border provinces consistently exhibited higher concentrations, Chiang Rai province showing average proportion, reaching up to 45%. On days when were classified as 'Unhealthy for Sensitive Groups' or 'Unhealthy', contributed least 50% total all Notably, stations Nan showed detectable even 'Very Unhealthy' underscoring impact border areas. Effective mitigation PM2.5-related risks requires addressing sources both within beyond Thailand's borders.

Language: Английский

Citations

2
Comprehensive review of the annual haze episode in Northern Thailand DOI Creative Commons
Cassian Pirard,

Artima Charoenpanwutikul

EarthArXiv (California Digital Library), Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 9, 2023

The mountainous part of northern Thailand is subject to an intense haze episode occurring almost every year between January and May. In the last couple decades, this atmospheric phenomenon has been extensively covered in media now a main concern for population living area. review, we synthesized information available from hundreds publications on air pollution Northern surrounding regions. review tentatively comprehensive, including physical chemical characteristics pollution, their emission sources meteorological climatological factors playing onset haze. effect human health, environment development agricultural, conservationist technological practices also covered. A significant focus socio-economical causes solutions that have brought by successive governments organizations solve issue.

Language: Английский

Citations

3
A Nation-by-Nation Assessment of the Contribution of Southeast Asian Open Biomass Burning to PM2.5 in Thailand Using the Community Multiscale Air Quality-Integrated Source Apportionment Method Model DOI Creative Commons

Nanthapong Chantaraprachoom,

Hikari Shimadera, Katsushige Uranishi

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 15(11), P. 1358 - 1358

Published: Nov. 12, 2024

This study utilized the Community Multiscale Air Quality (CMAQ) model to assess impact of open biomass burning (OBB) in Thailand and neighboring countries—Myanmar, Laos, Cambodia, Vietnam—on PM2.5 concentrations Bangkok Metropolitan Region (BMR) Upper Northern Thailand. The was further divided into west, central, east sub-regions (WUN, CUN, EUN) based on geographical borders. CMAQ used simulate spatiotemporal variations over a wide domain Asia 2019. Integrated Source Apportionment Method (ISAM) quantify contributions from OBB each country. results showed that had minor BMR, but transboundary transport Myanmar contributed an increase levels during peak period March April. In contrast, substantially impacted Region, with being major contributor WUN CUN domestic EUN months. Despite Laos having highest emissions, meteorological conditions caused spread eastward rather than These findings highlight critical regional emphasize necessity for collaborative strategies mitigating pollution across Southeast Asia.

Language: Английский

Citations

0
Study of Air Quality over Delhi during COVID-19 Lockdown Based on Remote Sensing Observations DOI
Sachin Budakoti

Atmospheric and Oceanic Optics, Journal Year: 2024, Volume and Issue: 37(6), P. 771 - 785

Published: Dec. 1, 2024

Language: Английский

Citations

0
Changing pattern of springtime biomass burning over Peninsular Southeast Asia (PSEA) in recent decades DOI Open Access
Saginela Ravindra Babu, Neng‐Huei Lin

Authorea (Authorea), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 4, 2023

The focus of this study is to present the recent changes in BB activity over PSEA by considering decadal changes, 5-year ensemble mean analysis, and long-term trends from twenty years (2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019)(2020) Moderate Resolution Imaging Spectroradiometer (MODIS) active fire counts.The results revealed that overall springtime significantly decreased past decade (2011-2020) compared previous (2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010).Surprisingly, individual monthly analysis substantially March, whereas April it increased (2011 2020).Further, means revealed, northern March sharply during 2006-2010, moderately 2011-2015 followed a profound decrease 2016-2020.Whereas, April, showed pronounced increase 2016-2020 periods Laos rest PSEA.The observed are strongly reflected aerosols gases.The MERRA-2 reanalysis total surface mass concentration-PM2.5, black carbon, MOPITT satellite carbon monoxide (CO) significant strong enhancement was evident April.Finally, trend shows increasing Cambodia, decreasing found PSEA.These findings have important implications for future management strategies regional climate region.

Language: Английский

Citations

0
Changing pattern of springtime biomass burning over Peninsular Southeast Asia (PSEA) in recent decades DOI Open Access
Saginela Ravindra Babu, Neng‐Huei Lin

Authorea (Authorea), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 8, 2023

The focus of this study is to present the recent changes in BB activity over PSEA by considering decadal changes, 5-year ensemble mean analysis, and long-term trends from twenty years (2001-2020) Moderate Resolution Imaging Spectroradiometer (MODIS) active fire counts. results revealed that overall springtime significantly decreased past decade (2011-2020) compared previous (2001-2010). Surprisingly, individual monthly analysis substantially March, whereas April it increased (2011 2020). Further, means revealed, northern March sharply during 2006–2010, moderately 2011-2015 followed a profound decrease 2016-2020. Whereas, April, showed pronounced increase 2016-2020 periods Laos rest PSEA. observed are strongly reflected aerosols gases. MERRA-2 reanalysis total surface mass concentration-PM, black carbon, MOPITT satellite carbon monoxide (CO) significant strong enhancement was evident April. Finally, trend shows increasing Cambodia, decreasing found These findings have important implications for future management strategies regional climate region.

Language: Английский

Citations

0