Midabka buluugga ah ee bir-oxide waa midabka ugu dahsoon ee qoyska birta oksaydhka ee midabada, buluuggiisu wuu ka duwan yahay buluugga cirka oo ka duwan buluugga badda, waa midab soo jiidasho iyo awood leh. Buluugu waa mid ka mid ah saddexda midab ee aasaasiga ah, iyo hirarkiisa ugu gaaban waa 450 ~ 500nm, kaas oo iska leh hirarka gaaban. Buluuggu waa calaamad daa'im ah oo macno qoto dheer leh sababtoo ah midabkiisa qarsoodiga ah.
Birta oksaydhka buluuga ah waxaa inta badan loo adeegsadaa asphalt, dhoobada diatom, dhabada caagga ah, rinjiga, khad, rinjiyeynta, midabada iyo midabada, maro rinji leh, warqad rinji, midabaynta alaabta caaga ah, sagxadaha dhismaha, midabaynta foornada sagxadda.