Bawo ni o ṣe pẹ to fun Paving Asphalt lati di ti kii ṣe majele

Ni deede, ilana na ni ayika 20 awọn ọjọ. Idapọmọra epo ni igbagbogbo ṣe afihan majele kekere, nipataki emitting aromatic hydrocarbons. Lọna miiran, edu oda idapọmọra, ọlọrọ ni benzene-jẹmọ volatiles, jẹ paapa diẹ majele ti.

Lakoko ti awọn oludoti wọnyi jẹ majele ti ara, ifihan pataki lori akoko jẹ pataki ni gbogbogbo lati ṣafihan awọn ipa majele.