Dokokin ingancin iska na kula ne da matakin sarrafa fitar da gurɓatacciyar iska zuwa cikin sararin samaniya . Ƙarƙashin wannan ne aka shimfiɗa ƙa'idodin ingancin iska masu matuƙar ƙarfi don suna tsara ingancin iska a cikin gine-gine. Akasarin lokuta a na tsara dokokin ingancin iska ne musamman don a kare lafiyar ɗan adam ta hanyar iyakancewa ko kawar da yawan gurɓatacciyar iska. An gina wasu tsare-tsare don magance matsalolin muhalli masu faɗi, kamar iyakancewa akan sinadarai waɗanda ke shafar shingen gajimare, da shirye-shiryen tarfuwar hayaki don magance matsalar ruwan guba ko sauyin yanayi. Ƙoƙarin tsari sun haɗa da ganowa da rarraba gurɓataccen iska, saita iyakoki akan matakan da ake yarda da su, da fayyace fasahohin ragewa masu mahimmanci ko dacewa. Dokokin ingancin iska dole ne su zamo akan abubuwa da ayyuka waɗanda suka cancanci a kira su da suna "ƙwayoyin gurbata" don dalilai na ƙarin sarrafawa. Yayin da takamaiman tambarin ya bambanta daga hukunce-hukunce zuwa hukunce-hukunce, akwai babban yarjejeniya tsakanin gwamnatoci da yawa game da abin da ya ƙunshi gurɓataccen iska. Misali, Dokar Tsabtace Tsabtace ta Amurka ta gano ozone, particulate matter, carbon monoxide, nitrogen oxides