Ihe nd? na-emet?ta mmep?ta formaldehyde nke ngwá ?l? d? mgbagwoju anya. N'ihe banyere isi ihe ya, ogwe osisi, e nwere ?t?t? ihe na-emet?ta formaldehyde emission nke osisi osisi, d? ka ?d? ihe, ?d? gluu, gluu oriri, ?k? na-ekpo ?k? ?n?d?, post-?gw?gw?, wdg ....
G?KWUO