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. 2021 Feb 27;28(30):40474–40495. doi: 10.1007/s11356-021-12709-z

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© The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature 2021

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Fig. 8 — Percentage change (%) and 95% CI of daily infected COVID-19 cases correlated with a unit increase in air pollutant and meteorological concentration using single and multi-parameter models. Note: 10 μg/m³ increase in PM_2.5, PM₁₀, NO₂, and SO₂ and 1 unit increase in meteorological factors (DTR: diurnal temp range, RH: relative humidity)

Fig. 8 — Percentage change (%) and 95% CI of daily infected COVID-19 cases correlated with a unit increase in air pollutant and meteorological concentration using single and multi-parameter models. Note: 10 μg/m³ increase in PM_2.5, PM₁₀, NO₂, and SO₂ and 1 unit increase in meteorological factors (DTR: diurnal temp range, RH: relative humidity)