Roj uas ua los ntawm cua sov Asphalt

Kub asphalt emits gases predominantly composed ntau hydrocarbons, tshwj xeeb tshaj yog polycyclic aromatic hydrocarbons.

Asphalt tus composition muaj xws li asphaltenes, rov qab ua dua, saturated thiab aromatic hydrocarbons.

Vim qhov kub-kub los yog ncua evaporation ntawm ntuj, roj av, thiab thee tar asphalt, Cov txheej txheem cua sov generates me molecular tej yam khoom, Chiefly ntev-saw hlau thiab aromatic hydrocarbons, notably tseem ceeb molecules xws li naphthalene, anthracene, phenanthrene, thiab benzo[a]pyrene.

Polycyclic aromatic hydrocarbons yuav notably toxic thiab ib txhia paub carcinogens.