Ma ka lā 17 o ʻOkakopa, 2013, ua hoʻopuka ka International Agency for Research on Cancer, kahi hui o ka World Health Organization, i kahi hōʻike no ka manawa mua ʻo ka pollution ea he carcinogenic i ke kanaka, a ʻo ka mea nui o ka haumia ea he mea ʻala.
I loko o ke kaiapuni kūlohelohe, ʻo ka mea ʻala i ka lewa ka nui o ke one a me ka lepo i lawe ʻia e ka makani, ka lehu pele i hoʻokuʻu ʻia e ka lua pele, ka uahi a me ka lepo i hoʻokumu ʻia e ke ahi o ka nahele, ka paʻakai kai i hoʻoheheʻe ʻia mai ke kai i ʻike ʻia i ka lā, a me ka pollen o nā mea kanu.
Me ka ulu ʻana o ka nohona kanaka a me ka hoʻonui ʻia ʻana o ka hana ʻoihana, hoʻopuka pū nā hana kanaka i ka nui o nā mea ʻala i ka lewa, e like me ka soot mai nā ʻano hana ʻoihana like ʻole e like me ka hana mana, metallurgy, petroleum, a me ka kemika, ka puhi ʻana i ka uahi, ka pau ʻana mai. kaʻa, puhi paka etc.
ʻO ka mea ʻala i loko o ka lewa pono e hopohopo nui e pili ana i ka mea inhalable particulate, e pili ana i ka particulate me kahi aerodynamic equivalent anawaena o lalo o 10 μm, ʻo ia ka PM10 a mākou e lohe pinepine ai, a ʻo ka PM2.5 ka emi ma mua o 2.5 μm. .
Ke komo ka ea i loko o ka ʻōpū hanu kanaka, hiki i ka lauoho ihu a me ka mucosa ihu ke ālai i ka hapa nui o nā ʻāpana, akā ʻaʻole hiki i ka poʻe ma lalo o PM10.Hiki i ka PM10 ke hōʻiliʻili i ka ʻōpū hanu luna, ʻoiai ʻo PM2.5 hiki ke komo pololei i ka bronchioles a me ka alveoli.
Ma muli o kona liʻiliʻi a me ka nui o ka ʻili o ka ʻili, ʻoi aku ka nui o nā mea ʻala e hoʻopili i nā mea ʻē aʻe, no laila ʻoi aku ka paʻakikī o nā kumu o kona pathogenesis, akā ʻo ka mea nui loa ka hiki ke hoʻoulu i ka maʻi cardiovascular, ka maʻi hanu a me ka maʻi kanesa.
ʻO ka PM2.5, ka mea maʻamau a mākou e mālama nei, he hapa liʻiliʻi o nā ʻāpana inhalable, akā no ke aha e nānā nui ai i ka PM2.5?
ʻO kaʻoiaʻiʻo, ʻo kekahi ma muli o ka hoʻolaha media, a ʻo ka mea ʻē aʻe ʻoi aku ka maikaʻi o ka PM2.5 a me ka maʻalahi o ka hoʻomoʻa ʻana i nā mea haumia organik a me nā metala koʻikoʻi e like me polycyclic aromatic hydrocarbons, kahi e hoʻonui nui ai i ka hiki ke carcinogenic, teratogenic, a me mutagenic.
Ka manawa hoʻouna: Mar-16-2022