J 2020

Characterization of Equivalent Black Carbon at a regional background site in Central Europe: Variability and source apportionment

MBENGUE, Saliou, Norbert SERFOZO, Jaroslav SCHWARZ, Nadezda ZIKOVA, Adela SMEJKALOVA HOLUBOVA et. al.

Základní údaje

Originální název

Characterization of Equivalent Black Carbon at a regional background site in Central Europe: Variability and source apportionment

Autoři

MBENGUE, Saliou (203 Česká republika), Norbert SERFOZO (203 Česká republika), Jaroslav SCHWARZ (203 Česká republika), Nadezda ZIKOVA (203 Česká republika), Adela SMEJKALOVA HOLUBOVA (203 Česká republika) a Ivan HOLOUBEK (203 Česká republika, garant, domácí)

Vydání

Environmental Pollution, Oxford, Elsevier Sci Ltd, 2020, 0269-7491

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 8.071

Kód RIV

RIV/00216224:14310/20:00116107

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000528537600054

Klíčová slova anglicky

Equivalent Black Carbon; Rural background variability; Source apportionment; Biomass burning; Fossil fuel

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 6. 11. 2020 17:50, Mgr. Marie Šípková, DiS.

Anotace

V originále

Characterizing Black Carbon (BC) at regional background areas is important for better understanding its impact on climate forcing and health effects. The variability and sources of Equivalent Black Carbon (EBC) in PM10 (atmospheric particles with aerodynamic diameter smaller than 10 mu m) have been investigated during a 5-year measurement period at the National Atmospheric Observatory KoSetice (NAOK), Czech Republic. Ground based measurements were performed from September 2012 to December 2017 with a 7-wavelength aethalometer (AE31, Magee Scientific). The contributions of fossil fuel (EBCff) and biomass burning (EBCbb) were estimated using the aethalometer model. Seasonal, diurnal and weekly variations of EBC were observed that can be related to the sources fluctuations and transport characteristic of pollutants predominantly associated with regional air masses recirculating over the Czech Republic and neighboring countries. The absorption Angstrom exponent (alpha-value) estimated in summer (1.1 +/- 0.2) was consistent with reported value for traffic, while the mean highest value (1.5 +/- 0.2) was observed in winter due to increased EBCbb accounting for about 50% of the total EBC. This result is in agreement with the strong correlation between EBCbb and biomass burning tracers (levoglucosan and mannosan) in winter. During this season, the concentrations of EBCbb and Delta-C (proxy for biomass burning) reached a maximum in the evening when increasing emissions of wood burning in domestic heating devices (woodstoves/heating system) is expected, especially during the weekend. The diurnal profile of EBCff displays a typical morning peak during the morning traffic rush hour and shows a decreasing concentration during weekends due to lower the traffic emission.

Návaznosti

CZ.02.1.01/0.0/0.0/16_013/0001315, interní kód MU
Název: ACTRIS - CZ - RI (Akronym: ACTRIS-CZ RI)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, ACTRIS - CZ - RI, PO 1 Posilování kapacit pro kvalitní výzkum
LM2015037, projekt VaV
Název: ACTRIS – účast České republiky (Akronym: ACTRIS-CZ)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, ACTRIS-CZ - Aerosol, Clouds and Trace Gases Research Infrastructure Network