• Je něco špatně v tomto záznamu ?

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

S. Mbengue, N. Serfozo, J. Schwarz, N. Ziková, AH. Šmejkalová, I. Holoubek,

. 2020 ; 260 (-) : 113771. [pub] 20200120

Jazyk angličtina Země Velká Británie

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc20023054

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 μm) have been investigated during a 5-year measurement period at the National Atmospheric Observatory Košetice (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 Ångström exponent (α-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.

Citace poskytuje Crossref.org

000      
00000naa a2200000 a 4500
001      
bmc20023054
003      
CZ-PrNML
005      
20201214125212.0
007      
ta
008      
201125s2020 xxk f 000 0|eng||
009      
AR
024    7_
$a 10.1016/j.envpol.2019.113771 $2 doi
035    __
$a (PubMed)31991342
040    __
$a ABA008 $b cze $d ABA008 $e AACR2
041    0_
$a eng
044    __
$a xxk
100    1_
$a Mbengue, Saliou $u CzechGlobe - Global Change Research Institute CAS, Brno, 60300, Czech Republic. Electronic address: mbengue.s@czechglobe.cz.
245    10
$a Characterization of Equivalent Black Carbon at a regional background site in Central Europe: Variability and source apportionment☆ / $c S. Mbengue, N. Serfozo, J. Schwarz, N. Ziková, AH. Šmejkalová, I. Holoubek,
520    9_
$a 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 μm) have been investigated during a 5-year measurement period at the National Atmospheric Observatory Košetice (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 Ångström exponent (α-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.
650    _2
$a aerosoly $7 D000336
650    12
$a látky znečišťující vzduch $x chemie $7 D000393
650    12
$a uhlík $x chemie $7 D002244
650    _2
$a monitorování životního prostředí $7 D004784
650    _2
$a pevné částice $x chemie $7 D052638
650    _2
$a roční období $7 D012621
651    _2
$a Česká republika $7 D018153
655    _2
$a časopisecké články $7 D016428
700    1_
$a Serfozo, Norbert $u CzechGlobe - Global Change Research Institute CAS, Brno, 60300, Czech Republic.
700    1_
$a Schwarz, Jaroslav $u Institute of Chemical Process Fundamentals CAS, Prague, CZ18000, Czech Republic.
700    1_
$a Ziková, Nadezda $u Institute of Chemical Process Fundamentals CAS, Prague, CZ18000, Czech Republic.
700    1_
$a Šmejkalová, Adéla Holubová $u CzechGlobe - Global Change Research Institute CAS, Brno, 60300, Czech Republic; Institute of Chemical Process Fundamentals CAS, Prague, CZ18000, Czech Republic; Czech Hydrometeorological Institute, Košetice Observatory, Košetice, 394 22, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Prague, 128 01, Czech Republic.
700    1_
$a Holoubek, Ivan $u CzechGlobe - Global Change Research Institute CAS, Brno, 60300, Czech Republic; Research Centre for Toxic Compounds in the Environment, Masaryk University, Brno, 62500, Czech Republic.
773    0_
$w MED00001554 $t Environmental pollution (Barking, Essex : 1987) $x 1873-6424 $g Roč. 260, č. - (2020), s. 113771
856    41
$u https://pubmed.ncbi.nlm.nih.gov/31991342 $y Pubmed
910    __
$a ABA008 $b sig $c sign $y a $z 0
990    __
$a 20201125 $b ABA008
991    __
$a 20201214125212 $b ABA008
999    __
$a ok $b bmc $g 1595373 $s 1113730
BAS    __
$a 3
BAS    __
$a PreBMC
BMC    __
$a 2020 $b 260 $c - $d 113771 $e 20200120 $i 1873-6424 $m Environmental pollution (1987) $n Environ. pollut. (1987) $x MED00001554
LZP    __
$a Pubmed-20201125

Najít záznam

Citační ukazatele

    Možnosti archivace