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http://dx.doi.org/10.3952/lithjphys.48103
Open access article / Atviros prieigos straipsnis
Lith. J. Phys. 48, 99–106 (2008)
RELATIONSHIP OF TOTAL OZONE
AMOUNT, UV RADIATION INTENSITY, AND THE GROUND-LEVEL OZONE
CONCENTRATION AT RURAL LITHUANIAN SITES
R. Chadyšienėa, R. Girgždienėb, and A.
Girgždysa
aVilnius Gediminas Technical University, Saulėtekio
11, LT-10223 Vilnius, Lithuania
E-mail: renata.chadysiene@fm.vtu.lt
bInstitute of Physics, Savanorių 231, LT-02300
Vilnius, Lithuania
Received 4 July 2007; revised 7
November 2007; accepted 22 February 2008
The ultraviolet radiation
intensity, the total ozone amount, and the ground-level ozone
concentration are the three essential factors having impact on the
vegetation, materials, the human health, and the atmospheric
chemistry. The analysis of the relationship among these parameters
was made for the obtained data under Lithuanian rural conditions.
UVB radiation intensity and ground-level ozone concentration were
measured at the Rūgšteliškės monitoring station and total ozone
data were obtained from the Kaunas meteorological station during
2002–2003. Cloudless or slightly cloudy days of the period were
chosen for the analysis. The results showed a strong dependence (R
= 0.73 for 2002 and R = 0.75 for 2003) between the UVB
radiation intensity and the ground-level ozone concentration. The
photochemical ozone generation at the Rūgšteliškės station,
located in the unpolluted forest area, is related to the reaction
between natural volatile organic compounds emitted from the
vegetation at low nitrogen oxide level. A more pronounced
relationship between the UVB radiation intensity and the
ground-level ozone concentration was found in 2003 and it could be
related to specific meteorological conditions of the summer of
2003. A negative correlation (R > –0.86) was determined
during cloudless days between the UVB radiation and the total
ozone.
Keywords: ground-level ozone
concentration, monitoring data, total ozone, ultraviolet radiation
PACS: 92.70.Cp, 92.60.Vb
RYŠYS TARP BENDRO OZONO KIEKIO,
ULTRAVIOLETINĖS SPINDULIUOTĖS INTENSYVUMO BEI PAŽEMIO OZONO
KONCENTRACIJOS LIETUVOS KAIMO VIETOVĖSE
R. Chadyšienėa, R. Girgždienėb, A.
Girgždysa
aVilniaus Gedimino technikos universitetas, Vilnius,
Lietuva
bFizikos institutas, Vilnius, Lietuva
Analizuotas ultravioletinės spinduliuotės
intensyvumo ir bendro ozono kiekio bei pažemio ozono
koncentracijos ryšys. Priklausomybė tirta panaudojant
ultravioletinės spinduliuotės intensyvumo ir pažemio ozono
koncentracijų matavimų Aukštaitijos ekologinės stebėsenos stotyje
Rūgšteliškėse duomenis ir bendro ozono kiekio matavimų (M-124 tipo
ozonometru) Lietuvos hidrometeorologijos tarnybos Kauno
meteorologinėje stotyje duomenis, gautus 2002–2003 metų
nenutrūkstamų matavimų metu. Ryšio tarp pažemio ozono lygio ir UVB
spinduliuotės intensyvumo bei bendro ozono kiekio paieškai
pasirinkti balandžio–birželio mėnesiai, kadangi kaip tik tuo
laikotarpiu registruojamos didelės šių parametrų vertės.
Statistiškai nagrinėjant tarpusavio ryšį, tarp bendro ozono kiekio
ir UVB spinduliuotės intensyvumo nustatytas antikoreliacinis
ryšys, stebimas tik giedromis dienomis; koreliacijos koeficientai
2002 ir 2003 metais atitinkamai buvo –0,87 ir –0,86. Nagrinėjant
ryšį tarp UVB spinduliuotės ir pažemio ozono koncentracijos,
nustatyta, kad UVB spinduliuotės ir pažemio ozono tarpusavio ryšys
tampresnis giedromis dienomis; koreliacijos koeficientai 2002 ir
2003 metais atitinkamai 0,72 ir 0,75.
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