N'October 17, 2013, International Agency for Research on Cancer, onye enyemaka nke World Health Organisation, nyere akụkọ maka oge mbụ na mmetọ ikuku bụ ọrịa carcinogenic ụmụ mmadụ, na isi ihe na-emetọ ikuku bụ ihe ndị na-emepụta ihe.
Na gburugburu ebe obibi, ihe ndị dị n'ikuku na-agụnyekarị ájá na uzuzu nke ifufe na-ebute, ntụ mgbawa nke mgbawa ugwu na-agbapụta, anwụrụ ọkụ na uzuzu nke ọkụ ọhịa na-akpata, nnu mmiri nke a na-esi na mmiri oké osimiri nke ìhè anyanwụ na-ekpochapụ, na pollen osisi.
Site na mmepe nke ọha mmadụ na mgbasawanye nke mmepụta ihe, ọrụ mmadụ na-ebutekwa nnukwu ihe dị iche iche n'ikuku, dị ka soot sitere na usoro mmepụta ihe dị iche iche dị ka ike ọkụ, metallurgy, petroleum, and chemistry, uzuoku isi nri, iyuzucha si ụgbọala, ise anwụrụ wdg.
Ihe dị n'ikuku kwesịrị ịdị na-echegbu onwe ya banyere ihe ndị na-ekuku ume, nke na-ezo aka n'ihe dị n'ime ya na dayameta nke ikuku na-erughị 10 μm, nke bụ PM10 anyị na-anụkarị, na PM2.5 bụ ihe na-erughị 2.5 μm. .
Mgbe ikuku na-abanye na traktị iku ume mmadụ, ntutu imi na imi imi nwere ike igbochi ọtụtụ akụkụ ahụ, mana ndị nọ n'okpuru PM10 enweghị ike.PM10 nwere ike ịgbakọ na traktị iku ume elu, ebe PM2.5 nwere ike ịbanye na bronchioles na alveoli ozugbo.
N'ihi ntakịrị nha ya na nnukwu akụkụ elu ya, ihe ndị na-emepụta ihe na-eme ka ihe ndị ọzọ na-eme ka ọ dịkwuo mfe, ya mere ihe ndị na-akpata pathogenesis ya na-agbagwoju anya, ma nke kachasị mkpa bụ na ọ nwere ike ịkpata ọrịa obi, ọrịa iku ume na ọrịa cancer akpa ume.
PM2.5, nke anyị na-echekarị banyere ya, na-aza n'ezie maka ntakịrị akụkụ nke irighiri ahụ inhalable, mana gịnị kpatara ị na-etinyekwu uche na PM2.5?
N'ezie, otu bụ n'ihi mgbasa ozi mgbasa ozi, nke ọzọ bụ na PM2.5 dị mma ma dị mfe ịmịnye ihe ndị na-emetọ ihe na-emetọ ihe ndị dị arọ dị ka polycyclic aromatic hydrocarbons, nke na-abawanye ohere nke carcinogenic, teratogenic, na mutagenic.
Oge nzipu: Mar-16-2022