E3S Web Conf.
Volume 99, 2019Central Asian DUst Conference (CADUC 2019)
|Number of page(s)||4|
|Section||Atmospheric dust at its sink regions|
|Published online||18 June 2019|
Composition of the isotopes on atmospheric aerosol of Tajikistan
S.U. Umarov Physical -Technical Institute Academy of Sciences of the Republic of Tajikistan
* Corresponding author: email@example.com
The results of the investigation of the isotopes distributions Tl-208, Pb-212, Ac-228, Pb-214, Bi-214, Th-234, Ra-226, Pb-210, Cs-137, Be-7 and K-40 in the samples of atmospheric aerosol of the southern, central and northern parts of Tajikistan are presented. Significant correlations were found between the concentrations of Cs-137 and Th-234 isotopes (0.95), Cs-137 and Ra-226 (0.95), Ra-226 and Bi-214 (0.84), Ac-228 and Ra-226 (0.75), Pb-210 and Pb-214 (0.69), Ac-228 and Pb-214 (0.64), K-40 and Pb-212 (0.71), Cs-137 and Bi-214 (0.78), Th-234 and Pb-212 (0.67). Correlations between the concentrations of the remaining isotopes are insignificant or negative. The statistical data for dust intrusion shows that the concentration of isotopes K-40, Cs-137 and Bi-214 exceeds the background pollution level by hundreds of times, and the remaining isotopes - dozens of times.
© The Authors, published by EDP Sciences, 2019
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