Naayitiroojiin daayoksaayidiin (NO₂) irra caalaa boba'aa konkolaataa, ho'isa manaa, oomisha humna elektirikii fi industirii keessatti gubachuu irraa dhufa. Ibsitoonni nyaata itti bilcheessan kan gaazii fi meeshaaleen biroo boba'aa guban mana keessattis isa gadhiisuu danda'u. Oozonii fi zarraawwan baay'ee xixiqqoo qilleensa naannoo lafaa keessatti uumamuu keessatti gumaacha qaba.
WHO: wantoota qilleensa faalanii fi fayyaa