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Ambient ozone at a rural Central European site and its vertical concentration gradient close to the ground by Iva Hůnová; Marek Brabec; Marek Malý is a Environmental Science article available to read on EtoBox.

What is Ambient ozone at a rural Central European site and its vertical concentration gradient close to the ground about?

The representativeness of ambient air quality of an in situ measurement is key in the use and correct interpretation of the measured concentration values. Though the horizontal representativeness aspect is generally not neglected in air pollution studies, a detailed, high-resolution vertical distribution of ambient air pollutant concentrations is rarely addressed. The aim of this study is twofold: (i) to explore the vertical distribution of ground-level ozone (O 3 ) concentrations measured at four heights above the ground-namely at 2, 8, 50, and 230 m-and (ii) to examine in detail the vertical O 3 concentration gradient in air columns between 2 and 8, 8 and 50, and 50 and 230 m above the ground. We use the daily mean O 3 concentrations measured continuously at the Košetice station, representing the rural Central European background ambient air quality observed during 2015-2021. We use the semiparametric GAM (generalised additive model) approach (with complexity or roughness-penalised splines implementation) to analyse the data with sufficient flexibility. Our models for both O 3 concentrations and O 3 gradients use (additive) decomposition into annual trend and seasonality (plus an

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Author

Iva Hůnová; Marek Brabec; Marek Malý

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)