Relative levels of indoor and outdoor particle number concentrations in a residential building in Xi'an--颗粒学报PARTICUOLOGY

Kang, Y., Zhong, K., & Lee, S.-C. (2006). Relative levels of indoor and outdoor particle number concentrations in a residential building in Xi'an. China Particuology, 4(6), 342-345. https://doi.org/10.1016/S1672-2515(07)60287-5

Relative levels of indoor and outdoor particle number concentrations in a residential building in Xi'an

Yanming Kang ^a *, Ke Zhong^a, Shun-Cheng Lee ^{a b}

a School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
b Research Center of Urban Environmental Technology and Management, Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

10.1016/S1672-2515(07)60287-5

Volume 4, Issue 6, December 2006, Pages 342-345

Received 13 April 2006, Accepted 24 November 2006, Available online 14 December 2007. Show less

E-mail: ymkang@dhu.edu.cn

Highlights

Abstract

The time series of indoor and outdoor particle number concentrations in a naturally ventilated residential building in Xi'an were tested simultaneously for 7 days in summer. The relationships between indoor and outdoor concentrations were examined and discussed, and linear regression analysis was employed to correlate the indoor and outdoor concentrations. The diurnal cycles of indoor and outdoor particle concentrations of different particle size ranges all showed positive correlations between indoor and outdoor number concentrations. The I/O ratios of number concentrations varied with the increase of particle size in the range of 0.89 (±0.19) to 0.99 (±0.15).

Graphical abstract

Keywords

indoor and outdoor; particle number concentration; I/O ratio; linear regression analysis

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