Drone-based vertical profiling of particulate matter size distribution and carbonaceous aerosols: urban vs. rural environment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F25%3A00642841" target="_blank" >RIV/67985858:_____/25:00642841 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/25:00642841 RIV/00216208:11310/25:10506534 RIV/00216208:11320/25:10506534

Výsledek na webu

<a href="https://acp.copernicus.org/articles/25/17933/2025/" target="_blank" >https://acp.copernicus.org/articles/25/17933/2025/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/acp-25-17933-2025" target="_blank" >10.5194/acp-25-17933-2025</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Drone-based vertical profiling of particulate matter size distribution and carbonaceous aerosols: urban vs. rural environment

Popis výsledku v původním jazyce

The study presents drone-based measurements to investigate the seasonal vertical variability of equivalent black carbon (eBC) mass and particle number concentrations (PNC) at a rural and urban site in the Czech Republic. Vertical profiles of eBC were measured using a micro-aethalometer, while PNC was measured using an optical particle counter. Drone-based eBC measurements closely matched reference aethalometers placed at both ground level and at 230m of a tower when using a humidity control mechanism. Without dryer, eBC mass concentration was overestimated by 276% in summer and 285% in winter, but uncertainties were reduced to under 10% with drying. These findings highlight the importance of humidity control for accurate aerosol measurements,nespecially for eBC. The study also revealed a decrease in eBC and PNC with height at the rural site during both summer and winter, with seasonal differences in the altitude where this decrease began. Elevated eBC concentrations in winter were due to increased atmospheric stability and combustion-related fine particles. At the urban site, concentrations in summer were uniform with height (4 to 100m above ground level (a.g.l.)) but gradually decreased with height during winter. Furthermore, the study investigated changes in the vertical distribution of eBC and PNC during a high pollution event at the urban site, influenced by long-range transport. Our findings confirm the effectiveness of drones in capturing vertical variations of air pollutants, offering results on the dynamics between local emissions, atmospheric stability, and long-range transport and suggesting the necessity of measuring vertical concentration profiles to support air quality management strategies.

Název v anglickém jazyce

Drone-based vertical profiling of particulate matter size distribution and carbonaceous aerosols: urban vs. rural environment

Popis výsledku anglicky

The study presents drone-based measurements to investigate the seasonal vertical variability of equivalent black carbon (eBC) mass and particle number concentrations (PNC) at a rural and urban site in the Czech Republic. Vertical profiles of eBC were measured using a micro-aethalometer, while PNC was measured using an optical particle counter. Drone-based eBC measurements closely matched reference aethalometers placed at both ground level and at 230m of a tower when using a humidity control mechanism. Without dryer, eBC mass concentration was overestimated by 276% in summer and 285% in winter, but uncertainties were reduced to under 10% with drying. These findings highlight the importance of humidity control for accurate aerosol measurements,nespecially for eBC. The study also revealed a decrease in eBC and PNC with height at the rural site during both summer and winter, with seasonal differences in the altitude where this decrease began. Elevated eBC concentrations in winter were due to increased atmospheric stability and combustion-related fine particles. At the urban site, concentrations in summer were uniform with height (4 to 100m above ground level (a.g.l.)) but gradually decreased with height during winter. Furthermore, the study investigated changes in the vertical distribution of eBC and PNC during a high pollution event at the urban site, influenced by long-range transport. Our findings confirm the effectiveness of drones in capturing vertical variations of air pollutants, offering results on the dynamics between local emissions, atmospheric stability, and long-range transport and suggesting the necessity of measuring vertical concentration profiles to support air quality management strategies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Atmospheric Chemistry and Physics

ISSN

1680-7316

e-ISSN

1680-7324

Svazek periodika

25

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

19

Strana od-do

17933-17951

Kód UT WoS článku

001632213900001

EID výsledku v databázi Scopus

2-s2.0-105024341930