Siv nyob rau hauv ozone ib puag ncig tej yam kev mob, cov roj hmab nto accelerates aging, thiaj li hais tias muaj ib tug muaj peev xwm frosting tshwm sim ntawm unstable tshuaj nyob rau hauv cov roj hmab yuav ceev dawb (migration) nag lossis daus, muaj ib tug frosting tshwm sim tshwm sim.
