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Air Purifier Intervention to Remove Indoor PM2.5 in Urban China: A Cost-Effectiveness and Health Inequality Impact Study.

Publication ,  Journal Article
Zhang, A; Liu, Y; Ji, JS; Zhao, B
Published in: Environmental science & technology
March 2023

Using air purifiers is an intervention to reduce exposure to fine particulate matter (PM2.5) for health benefits. We performed a comprehensive simulation in urban China to estimate the cost-effectiveness of long-term use of air purifiers to remove indoor PM2.5 from indoor and ambient air pollution in five intervention scenarios (S1-S5), where the indoor PM2.5 targets were 35, 25, 15, 10, and 5 μg/m3, respectively. In scenarios S1 to S5, 5221 (95% uncertainty interval: 3886-6091), 6178 (4554-7242), 8599 (6255-10,109), 11,006 (7962-13,013), and 14,990 (10,888-17,610) thousand disability-adjusted-life-years (DALYs) can be avoided at the cost of 201 (199-204), 240 (238-243), 364 (360-369), 522 (515-530), and 921 (905-939) billion Chinese Yuan (CNY), respectively. A high disparity in per capita health benefits and costs was observed by city, which expanded with the decrease of the indoor PM2.5 target. The net benefits of using purifiers in cities varied across scenarios. Cities with a lower ratio of annual average outdoor PM2.5 concentration to gross domestic product (GDP) per capita tended to achieve higher net benefits in the scenario with a lower indoor PM2.5 target. Controlling ambient PM2.5 pollution and developing the economy can reduce the inequality in air purifier use across China.

Duke Scholars

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

March 2023

Volume

57

Issue

11

Start / End Page

4492 / 4503

Related Subject Headings

  • Particulate Matter
  • Health Status Disparities
  • Environmental Sciences
  • Cost-Benefit Analysis
  • China
  • Air Pollution, Indoor
  • Air Pollution
  • Air Pollutants
  • Air Filters
 

Citation

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Zhang, A., Liu, Y., Ji, J. S., & Zhao, B. (2023). Air Purifier Intervention to Remove Indoor PM2.5 in Urban China: A Cost-Effectiveness and Health Inequality Impact Study. Environmental Science & Technology, 57(11), 4492–4503. https://doi.org/10.1021/acs.est.2c09730
Zhang, Ao, Yumeng Liu, John S. Ji, and Bin Zhao. “Air Purifier Intervention to Remove Indoor PM2.5 in Urban China: A Cost-Effectiveness and Health Inequality Impact Study.Environmental Science & Technology 57, no. 11 (March 2023): 4492–4503. https://doi.org/10.1021/acs.est.2c09730.
Zhang A, Liu Y, Ji JS, Zhao B. Air Purifier Intervention to Remove Indoor PM2.5 in Urban China: A Cost-Effectiveness and Health Inequality Impact Study. Environmental science & technology. 2023 Mar;57(11):4492–503.
Zhang, Ao, et al. “Air Purifier Intervention to Remove Indoor PM2.5 in Urban China: A Cost-Effectiveness and Health Inequality Impact Study.Environmental Science & Technology, vol. 57, no. 11, Mar. 2023, pp. 4492–503. Epmc, doi:10.1021/acs.est.2c09730.
Zhang A, Liu Y, Ji JS, Zhao B. Air Purifier Intervention to Remove Indoor PM2.5 in Urban China: A Cost-Effectiveness and Health Inequality Impact Study. Environmental science & technology. 2023 Mar;57(11):4492–4503.
Journal cover image

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

March 2023

Volume

57

Issue

11

Start / End Page

4492 / 4503

Related Subject Headings

  • Particulate Matter
  • Health Status Disparities
  • Environmental Sciences
  • Cost-Benefit Analysis
  • China
  • Air Pollution, Indoor
  • Air Pollution
  • Air Pollutants
  • Air Filters