WIND INDUCED RESUSPENSION OF PARTICULATE MATTER FRACTIONS IN URBAN ENVIRONMENT AND THEIR CORRELATION TO NITROGEN OXIDES

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU148009" target="_blank" >RIV/00216305:26210/22:PU148009 - isvavai.cz</a>

Result on the web

<a href="https://epslibrary.at/sgem_jresearch_publication_view.php?page=view&editid1=8875" target="_blank" >https://epslibrary.at/sgem_jresearch_publication_view.php?page=view&editid1=8875</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2022V/4.2/s19.58" target="_blank" >10.5593/sgem2022V/4.2/s19.58</a>

Result language

čeština

Original language name

WIND INDUCED RESUSPENSION OF PARTICULATE MATTER FRACTIONS IN URBAN ENVIRONMENT AND THEIR CORRELATION TO NITROGEN OXIDES

Original language description

Air pollution by particulate matter (PM) in urban environment is an ongoing problem with increasing severity. With the gradual evolution of electromobility and lowemission heat sources, the focus is shifting to non-exhaust PM emissions. Wind induced PM resuspension is one of them. This source is hardly amenable to mitigation measures. It was assumed, that only coarse PM (PM10-2,5) can be lifted from the ground by the wind. By the evaluation of the long-term data series, we can divide the PM10 concentration to its fractions PM10-2,5, PM2,5-1, PM1 and evaluate their behaviour. The aim of the work was to evaluate the data in order to recognize the resuspension process, even with a fine fraction, PM1. The data were then compared with the NOx values to determine if the PM originated from combustion processes. The original assumption of a correlation between NOx and PM1 was not confirmed in most cases. The results show that in some cases coarse PM are dominantly associated with NOx. The correlation of fine and coarse particles with NOx in resuspension process depends primarily on the time period of the day.

Czech name

WIND INDUCED RESUSPENSION OF PARTICULATE MATTER FRACTIONS IN URBAN ENVIRONMENT AND THEIR CORRELATION TO NITROGEN OXIDES

Czech description

Air pollution by particulate matter (PM) in urban environment is an ongoing problem with increasing severity. With the gradual evolution of electromobility and lowemission heat sources, the focus is shifting to non-exhaust PM emissions. Wind induced PM resuspension is one of them. This source is hardly amenable to mitigation measures. It was assumed, that only coarse PM (PM10-2,5) can be lifted from the ground by the wind. By the evaluation of the long-term data series, we can divide the PM10 concentration to its fractions PM10-2,5, PM2,5-1, PM1 and evaluate their behaviour. The aim of the work was to evaluate the data in order to recognize the resuspension process, even with a fine fraction, PM1. The data were then compared with the NOx values to determine if the PM originated from combustion processes. The original assumption of a correlation between NOx and PM1 was not confirmed in most cases. The results show that in some cases coarse PM are dominantly associated with NOx. The correlation of fine and coarse particles with NOx in resuspension process depends primarily on the time period of the day.

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10509 - Meteorology and atmospheric sciences

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

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

Article name in the collection

Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022

ISBN

978-619-7603-50-7

ISSN

—

e-ISSN

—

Number of pages

8

Pages from-to

463-470

Publisher name

STEF92 Technology

Place of publication

Vienna

Event location

Vídeň

Event date

Dec 6, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—