First Results on Moss Biomonitoring of Trace Elements in the Central Part of Georgia, Caucasus

Atmosphere

Anvar Bazaev¹  Omari Chaligava²  Dmitry Grozdov²  Marina Frontasyeva²  Konstantin Vergel²  Igor Nikolaev³  Yulia Lavrinenko³  Khetag Khetagurov³ 

[1] Gorsky State Agrarian University, 362040 Vladikavkaz, Russia;Sector of Neutron Activation Analysis and Applied Research, Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia;The North Ossetian State University of K.L. Khetagurov, 362025 Vladikavkaz, Russia;

关键词: moss biomonitoring;    trace elements;    atmospheric deposition;    neutron activation analysis;    atomic absorption spectrometry;    multivariate statistics;   

DOI  :  10.3390/atmos12030317

来源: DOAJ

【 摘 要 】

The moss biomonitoring technique was used for assessment of air pollution in the central part of Georgia, Caucasus, in the framework of the UNECE ICP Vegetation. A total of 35 major and trace elements were determined by two complementary analytical techniques, epithermal neutron activation analysis (Na, Mg, Al, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Se, B, Rb, Sr, Zr, Mo, Sb, I, Cs, Ba, La, Ce, Nd, Sm, Eu, Tb, Yb, Hf, Ta, W, Th, and U) and atomic absorption spectrometry (Cu, Cd, and Pb) in the moss samples collected in 2019. Principal Component Analyses was applied to show the association between the elements in the study area. Four factors were determined, of which two are of geogenic origin (Factor 1 including Na, Al, Sc, Ti, V, Cr, Fe, Co, Ni, Th, and U and Factor 3 with As, Sb, and W), mixed geogenic–anthropogenic (F2 with Cl, K, Zn, Se, Br, I, and Cu) and anthropogenic (F4 comprising Ca, Cd, Pb, and Br). Geographic information system (GIS) technologies were used to construct distributions maps of factor scores over the investigated territory. Comparison of the median values with the analogous data of moss biomonitoring in countries with similar climatic conditions was carried out.

【 授权许可】

Unknown