Variations in the structure of airborne bacterial communities in Tsogt-Ovoo of Gobi desert area during dust events.

Asian dust events transport the airborne bacteria in Chinese desert regions as well as mineral particles and influence downwind area varying biological ecosystems and climate changes. However, the airborne bacterial dynamics were rarely investigated in the Gobi desert area, where dust events are highly frequent. In this study, air samplings were sequentially performed at a 2-m high above the ground at the sampling site located in desert area (Tsogt-Ovoo of Gobi desert; Mongolia 44.

Plutonium, Cs and uranium isotopes in Mongolian surface soils.

Plutonium (Pu and Pu), Cs and plutonium activity ratios (Pu/Pu) as did uranium isotope ratio (U/U) were measured in surface soil samples collected in southeast Mongolia. The Pu and Cs concentrations in Mongolian surface soils (<53 μm of particle size) ranged from 0.42 ± 0.