Health impact assessment of PM2.5 from a planned coal-fired power plant in Taiwan

J Formos Med Assoc. 2019 Nov;118(11):1494-1503. doi: 10.1016/j.jfma.2019.08.016. Epub 2019 Sep 5.

Abstract

Purpose: To investigate the impact of a planned coal-fired power plant (CFPPT) in Shenao on air quality and health at subnational levels in Taiwan.

Methods: We applied the Gaussian trajectory transfer-coefficient (GTx) model to estimate annual average PM2.5 (particulate matter with aerodynamic diameter less than 2.5 μm) increments in 19 Taiwanese cities and counties caused by CFPPT operation. A population health risk assessment was performed by incorporating evidence of the health effects of PM2.5 provided by prospective studies and estimating long-term PM2.5 exposure. Additionally, we considered ischemic heart disease, stroke, lung cancer, and chronic obstruct pulmonary disease as the primary outcomes. The population-attributable fraction was used to estimate the county-level mortality burden attributable to CFPPT-generated PM2.5 in 2025.

Results: The estimated annual PM2.5 increments ranged from 0.004 μg/m3 (Taitung County) to 0.28 μg/m3 (Hsinchu County) due to the Shenao CFPPT. The total and premature deaths attributable to PM2.5 from Shenao CFPPT operation in Taiwan during 2025-2040 would be 576 (95% confidence interval [CI]: 537-619) and 145 (95% CI: 136-155), respectively. Notably, we estimated 198 (95% CI: 169-234) deaths and 58 (95% CI: 51-66) premature deaths, respectively, in New Taipei City, which accounted for over a quarter of the total deaths. Overall, the mortality rate attributable to the Shenao CFPPT in Taiwan was 6 per 10,000.

Conclusion: A scientific approach should be adopted for assessing the impacts of CFPPT operation on population health, which can serve as a valuable policymaking reference for the government.

Keywords: Coal-fired power plant (CFPPT); Comparative risk assessment (CRA); Gaussian trajectory transfer-coefficient modeling system (GTx); Global burden of disease (GBD); PM(2.5).

MeSH terms

  • Air Pollutants / adverse effects*
  • Air Pollution / adverse effects*
  • Coal*
  • Environmental Exposure / adverse effects*
  • Health Impact Assessment
  • Humans
  • Mortality, Premature
  • Particulate Matter / adverse effects*
  • Power Plants*
  • Risk Assessment
  • Taiwan / epidemiology

Substances

  • Air Pollutants
  • Coal
  • Particulate Matter