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. 2018 May 26;15(6):1077. doi: 10.3390/ijerph15061077

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Association between particulate matter (PM_2.5) and lung function outcomes. Shown are percentage change of FEV₁ and FVC per interquartile range (IQR) increase in PM_2.5 averaged over 7, 10, and 14 days. FEV₁: forced expiratory volume in 1 s. FVC: forced vital capacity.