[PDF]
http://dx.doi.org/10.3952/lithjphys.47205
Open access article / Atviros prieigos straipsnis
Lith. J. Phys. 47, 203–210 (2007)
ORGANIC AND ELEMENTAL CARBON IN
COASTAL AEROSOL OF THE BALTIC SEA
A. Milukaitė, K. Kvietkus, and I. Rimšelytė
Institute of Physics, Savanorių 231, LT-02300 Vilnius,
Lithuania
E-mail: amk@ktl.mii.lt
Received 28 March 2007; revised 10
May 2007
Investigation of organic (OC) and
elemental (EC) carbon in atmospheric aerosol was performed at the
Preila Environmental pollution research background station on
19–28 June 2006. In parallel, the measurement of black carbon by
the reflectometric method was carried out. The sources of
carbonaceous compounds were detected by using air mass backward
trajectories. The highest concentrations of OC and EC were
transported with air masses of the southwestern direction, from
the “black triangle” (bordering areas of Czech Republic, Germany,
and Poland), and the lowest concentrations of carbonaceous
compounds were associated with air masses from the Atlantic Ocean.
The input of westerly air mass exceeded 50% of total pollution,
which is in agreement with earlier determined peculiarities of
background pollution formation in the Baltic region.
Keywords: organic carbon, elemental
carbon, black carbon, coastal aerosol, air mass backwards
trajectories
PACS: 82.33.Tb, 92.60.Mt, 92.60.Sz, 07.88.+y
ORGANINĖ IR ELEMENTINĖ ANGLIS
BALTIJOS JŪROS PAKRANTĖS AEROZOLYJE
A. Milukaitė, K. Kvietkus, I. Rimšelytė
Fizikos institutas, Vilnius, Lietuva
Organinė ir elementinė anglis atmosferos
aerozolyje buvo tirta 2006 m. birželio 18–28 dienomis Preilos
Aplinkos užterštumo tyrimų stotyje. Organinės ir elementinės
anglies koncentracijos buvo įvertintos termooptiniu metodu.
Lygiagrečiai reflektometriniu metodu buvo atlikti juodosios
anglies matavimai. Turinčių anglies junginius aerozolio dalelių,
įvertinant jų šaltinius, pernaša analizuota naudojant atgalines
oro masių pernašos trajektorijas 1000, 500 ir 20 m virš žemės
paviršiaus. Trajektorijos skaičiuotos NOAA (National Oceanic
and Atmospheric Administration, JAV) HYSPLIT modelio
metodika [11]. Rasta, kad didžiausios organinės ir elementinės
anglies koncentracijos aerozoliuose buvo susijusios su
pietvakarinėmis oro masėmis, praslinkusiomis virš „juodojo
trikampio” (Lenkijos, Čekijos, Vokietijos pasienio teritorija), o
žemiausios – su oro masėmis nuo Atlanto vandenyno. Organinė ir
elementinė anglis, nešama vakarinių oro masių, Preilos foninėje
stotyje sudarė daugiau nei 50 % visos anglį turinčių medžiagų
taršos. Gauti rezultatai atitinka Pabaltijo atmosferos užterštumo
fono formavimosi dėsningumus, nustatytus anksčiau kitiems
teršalams.
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