Recognition of wind-induced resuspension of PM10 and its fractions PM10-2.5, PM2.5-1, and PM1 in urban environments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F25%3APU156051" target="_blank" >RIV/00216305:26210/25:PU156051 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/02786826.2025.2463476" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/02786826.2025.2463476</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/02786826.2025.2463476" target="_blank" >10.1080/02786826.2025.2463476</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Recognition of wind-induced resuspension of PM10 and its fractions PM10-2.5, PM2.5-1, and PM1 in urban environments

Popis výsledku v původním jazyce

Particulate matter (PM) air pollution is a matter of concern in most cities. Most of the PM is exhaust related, with dominant contributor, traffic. In the near future, we will see a shift toward electromobility and low emission heat sources. Non-exhaust sources of PM could be dominant. Resuspension of previously deposited PM is likely to increase its contribution. Resuspension process can be induced by wind or vehicles. It can be recognized from the long-term air quality data, creating a long-term characteristic of the process. In this paper the resuspension process of three PM fractions was recognized and characterized. Results show that wind-induced resuspension of PM1 fraction is a considerable source of pollution. The threshold wind speed causing resuspension (TWSR) is slightly lower for PM1 than for PM10-2.5. Considering the variability in the results, resuspension for PM1 and PM10-2.5 could happen simultaneously. Similarly, the intensity of resuspension is lower by 27% for PM1 than for PM10-2.5, still PM1 resuspension intensity cannot be neglected. Wind induced resuspension can contribute up to 8 mu g/m3 in each fraction. The analysis of the properties of resuspension showed, that except of resuspension intensity, PM10 has similar properties to each fraction. The values of TWSR are very much similar across all PM fractions. Still, resuspension properties seem to have large scatter and tends to be site specific.

Název v anglickém jazyce

Recognition of wind-induced resuspension of PM10 and its fractions PM10-2.5, PM2.5-1, and PM1 in urban environments

Popis výsledku anglicky

Particulate matter (PM) air pollution is a matter of concern in most cities. Most of the PM is exhaust related, with dominant contributor, traffic. In the near future, we will see a shift toward electromobility and low emission heat sources. Non-exhaust sources of PM could be dominant. Resuspension of previously deposited PM is likely to increase its contribution. Resuspension process can be induced by wind or vehicles. It can be recognized from the long-term air quality data, creating a long-term characteristic of the process. In this paper the resuspension process of three PM fractions was recognized and characterized. Results show that wind-induced resuspension of PM1 fraction is a considerable source of pollution. The threshold wind speed causing resuspension (TWSR) is slightly lower for PM1 than for PM10-2.5. Considering the variability in the results, resuspension for PM1 and PM10-2.5 could happen simultaneously. Similarly, the intensity of resuspension is lower by 27% for PM1 than for PM10-2.5, still PM1 resuspension intensity cannot be neglected. Wind induced resuspension can contribute up to 8 mu g/m3 in each fraction. The analysis of the properties of resuspension showed, that except of resuspension intensity, PM10 has similar properties to each fraction. The values of TWSR are very much similar across all PM fractions. Still, resuspension properties seem to have large scatter and tends to be site specific.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

AEROSOL SCIENCE AND TECHNOLOGY

ISSN

0278-6826

e-ISSN

1521-7388

Svazek periodika

1

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

„“-„“

Kód UT WoS článku

001432851500001

EID výsledku v databázi Scopus

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