4.5 Article

Public health and economic impact assessment of PM2.5 from open biomass burning over countries in mainland Southeast Asia during the smog episode

Journal

ATMOSPHERIC POLLUTION RESEARCH
Volume 13, Issue 6, Pages -

Publisher

TURKISH NATL COMMITTEE AIR POLLUTION RES & CONTROL-TUNCAP
DOI: 10.1016/j.apr.2022.101418

Keywords

Open biomass burning; Particulate matter; Mortality; Economic burdens; Health burdens; Seasonal haze

Funding

  1. 'Thailand's Education Hub for Southern Region of ASEAN Countries' Scholarship from Prince of Songkla University, Thailand [TEH-AC 026/2018]
  2. Andaman Environmental and Natural Disaster Research Center (ANED), Prince of Songkla University, Phuket Campus
  3. Thailand science research and innovation fund
  4. University of Phayao, Thailand [FF64-UoE]
  5. Joint Graduate School of Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi
  6. Center of Excellence on Energy Technology and Environ ment (CEE), PERDO, Ministry of Higher Education, Science, Research and Innovation, Thailand

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PM2.5, caused by open biomass burning (OBB), is the principal air pollutant in Mainland Southeast Asia (MSEA) with significant adverse health effects and economic burdens. This study found that OBB is the largest emission source in MSEA, contributing 57% to PM2.5 concentrations, and has substantial impacts on public health and economy, particularly in Myanmar. The study provides policymakers with quantitative estimates to develop appropriate control measures in MSEA.
PM2.5 is considered the principal air pollutant caused by open biomass burning (OBB) in Mainland Southeast Asia (MSEA) and significant adverse health effects and economic burdens. The goals of this work are to conduct a literature review on relative measures of the effect associated with the exposure to OBB emission in MSEA, to analyze the impact of OBB emission on PM2.5 concentration in MSEA using the dispersion model, and to estimate the public health and economic impacts associated with the exposure to PM2.5 from OBB on regional and national scales using Environmental Benefits Mapping and Analysis Program during a smog episode. This work found that OBB was the largest emission source in MSEA, contributing 57% to the PM2.5 concentrations, with the substantial OBB impact was found in Northern Laos and Eastern Myanmar. As a result, the exposure to PM2.5 from OBB was estimated to contribute a substantial number of deaths regarding all-cause (78,276 cases - 95% CI: 62,915???92,629), respiratory disease (6,716 cases ??? 95% CI: 3,639???9,482), and cardiovascular disease (1,076 cases ??? 95% CI: 490-1,615). The economic impact was estimated at 23.28 billion (95% CI: 18.69???27.57), 1.90 billion (95% CI: 0.88???2.40), and 0.44 billion (95% CI: 0.20???0.67) USD, respectively. OBB emission caused the greatest public health and economic impact in Myanmar, while the smallest impact was found in Cambodia. Our study provides policymakers with quantitative estimates of the OBB impacts so that they can develop appropriate control measures at the regional and national levels in MSEA.

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