Nyob rau hauv Russia, kev ua liaj ua teb tuav tau nquag nqis peev rau hauv cov haujlwm tshiab lossis hauv kev kho tshiab ntawm cov tsev cog khoom uas twb muaj lawm. Ob peb xyoos dhau los, cov neeg sawv cev ntawm cov lag luam loj tseem yog cov tub lag luam tseem ceeb hauv kev lag luam. Lawv suav txog yam tsawg kawg 70% ntawm tag nrho cov nyiaj faib rau kev tsim kho, rov tsim kho lossis kho tshiab ntawm tsev cog khoom. Raws li cov kws tshaj lij, nws yog cov phiaj xwm kev lag luam ntawm kev tuav pov hwm uas muaj qhov ua tau zoo tshaj plaws ntawm kev siv piv rau cov nqe lus ntawm cov tub ua lag luam hauv zos.