Indoor and outdoor relationships of particle with different sizes in an apartment in Hanoi: mass concentration and respiratory dose estimation

Vo Thi Le Ha, Van Dieu Anh, Nguyen Thi Thu Hien, Nghiem Trung Dung, Yoko Simada, Minoru Yoneda
Author affiliations

Authors

  • Vo Thi Le Ha School of Environmental Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet, HaNoi, VietNam https://orcid.org/0000-0002-0986-1224
  • Van Dieu Anh School of Environmental Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet, HaNoi, VietNam
  • Nguyen Thi Thu Hien School of Environmental Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet, Ha Noi, Viet Nam
  • Nghiem Trung Dung School of Environmental Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet, Ha Noi, Viet Nam
  • Yoko Simada Deparmentof Environmental Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8540, Japan
  • Minoru Yoneda Deparmentof Environmental Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8540, Japan

DOI:

https://doi.org/10.15625/2525-2518/58/6/15237

Keywords:

Particulate matter, dose estimation, I/O ratio, seasonal variation, Monte Carlo

Abstract

This paper presents data on the size characterization concentration of PM0.1, PM0.5, PM1, PM2.5, PM10, TSP in indoor and outdoor air of a residential apartment in two seasons (winter and summer) in Hanoi, Vietnam. These particles with different sizes were taken by 5 stage impactors (Nano sampler 3182, KINOMAX). Daily average concentrations of coarse particles (PM10) and fine particles (PM2.5) indoors and outdoors exceeded the WHO recommended values. In winter, the concentrations of PM0.5, PM1, PM2.5 and PM10, TSP are higher than in summer. However, concentrations of PM0.1 (NP) remains negligible change between two seasons. The indoor NP accounts about 17% and 8 % of fine particle (PM2.5) and 12 % and 7% of coarse particle (PM10) in winter and summer, respectively.  The indoor fraction for small sizes (NP, PM0.5, PM1 and PM2.5) have better infiltration than coarse sizes (PM10  and TSP), except for NP in summer. Moderate correlation between wind speed  (Ws) and PM concentration are found, whereas precipitation (Pr), Relative humidity (RH) and temperature (T) correlate with concentration with different sizes are determined. Strong correlations between particles with different sizes are also found in indoors and outdoors (r = 0.73-0.98). Household activities like cooking, cleaning and vacuum cleaner are attributed to elevate the indoor NP. The Monte Carlo simulation shows that highest estimated dose is observed in the age group (over 60 years) and age group (0-3 years) suffers the lowest dose, which has implications in the adverse health effects for sensitive groups. Sensitive analysis find the concentration of particles to be the most influencing factor on inhalation dose estimation.

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Published

15-12-2020

How to Cite

[1]
V. T. L. Ha, V. D. Anh, N. T. T. . Hien, N. T. Dung, Y. . Simada, and M. . Yoneda, “Indoor and outdoor relationships of particle with different sizes in an apartment in Hanoi: mass concentration and respiratory dose estimation”, Vietnam J. Sci. Technol., vol. 58, no. 6, pp. 736–746, Dec. 2020.

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Environment

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