PM₁₀ zarraawwan baay'ee xixiqqoo (PM₂.₅) fi zarraawwan isaan caalaa gurguddoo hanga maaykiroometira 10 bal'atan hammata. Maddoonni isaa awwaara daandii fi ijaarsaa, biyyee bubbeen kaasuu, boba'aa gubachuu fi zarraawwan qilleensa naannoo lafaa keessatti uumaman dabalatu. PM₁₀ zarraawwan gurguddoo qofa wajjin tokko miti: isaan kutaa maaykiroometira 2.5 fi 10 gidduu jiraniidha.

WHO: wantoota qilleensa faalanii fi fayyaa

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

Oozoniin lafa bira jiru (O₃) yeroo ifti aduu walnyaatinsa oksaayidoota naayitiroojiinii fi kompaawundoota orgaanikii dafee hurkan hirmaachisu kakaasu uumama. Sadarkaan isaa yeroo baay'ee haala qilleensaa aduu qabu keessatti ol ka'a; faalamnis maddoota isaa irraa gara fagootti geeffamuu danda'a. Oozoniin lafa bira jiru miidhaa qaba; baqqaana oozonii ol fagoo qilleensa naannoo lafaa keessa jiru kan nu eegu irraa adda.

WHO: wantoota qilleensa faalanii fi fayyaa