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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985807%3A_____%2F23%3A00572922" target="_blank" >RIV/67985807:_____/23:00572922 - isvavai.cz</a>

Alternative codes found

RIV/00020699:_____/23:N0000085 RIV/00216208:11310/23:10468263 RIV/75010330:_____/23:00014245

Result on the web

<a href="https://dx.doi.org/10.1007/s11356-023-28016-8" target="_blank" >https://dx.doi.org/10.1007/s11356-023-28016-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11356-023-28016-8" target="_blank" >10.1007/s11356-023-28016-8</a>

Result language

angličtina

Original language name

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

Original language description

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 (O3) concentrations measured at four heights above the ground—namely at 2, 8, 50, and 230 m—and (ii) to examine in detail the vertical O3 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 O3 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 O3 concentrations and O3 gradients use (additive) decomposition into annual trend and seasonality (plus an overall intercept). The seasonal and year-to-year patterns of the modelled O3 concentrations look very similar at first glance. Nevertheless, a more detailed look through O3 gradients shows that they differ substantially with respect to their seasonal and long-term dynamics. The vertical O3 concentration gradient in 2–230 m is not uniform but changes substantially with increasing height and shows by far the highest dynamics near the ground between 2 and 8 m, differing in both the seasonal and annual aspects for all the air columns inspected. We speculate that non-linear changes of both seasonal and annual components of vertical O3 gradients are due to atmospheric-terrestrial interactions and to meteorological factors, which we will explore in a future study.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10103 - Statistics and probability

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Science and Pollution Research

ISSN

0944-1344

e-ISSN

1614-7499

Volume of the periodical

30

Issue of the periodical within the volume

33

Country of publishing house

DE - GERMANY

Number of pages

15

Pages from-to

80014-80028

UT code for WoS article

001004546200015

EID of the result in the Scopus database

2-s2.0-85161460797