Kupfuura hafu yezviitiko muvana muUnited States zvinoitika munzvimbo dzine mhepo yemhepo iri pasi pemitemo yeEPA. Mhepo yakaderera inowanzoitika munharaunda dzine mari shoma uye vashoma. Kusangana nemakemikari emukati anogona kukonzera asthma; kuratidzwa kwe formaldehyde, semuenzaniso, kune hukama hwakanaka. Phthalates mune dzimwe mhando dzePVC dzinosanganisirwawo nevana uye vanhu vakuru. Kunyange zvazvo kusvuta fodya panguva yekuzvitakura uye mushure mekuzvara kunosanganisirwa nehukama hukuru hwekukura kweasthma, uye mhedzisiro yekusangana neasthma yakave yakabatana nekukura kweasthma uye kuwedzerwa kweasthma. Zvisinei, humwe humbowo hwekuti kusangana neasthma kunogona kuwedzera njodzi yekutapukirwa nehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachiona hwehutachi
utachiona hwokufema