Ka whakamahia e te punaha whakamatautau whakamaarama mamao whakapae i te hangarau whakangao hihiko ki te kite i nga tukunga o te waro hauhaa (CO2), te waro monoxide (CO), te hauwai (HC), me te hauota waikura (NOX) mai i te ngongo waka motoka. Kua hoahoatia te punaha mo nga waka penehīni me te waka tiihi, ka kitea te opacity, te matūriki (PM2.5), me te haukini (NH3) o nga waka penehi me te diesel.
Kei roto i te punaha whakamatautau whakamaarama mamao ko te puna marama me te waahanga tātari, he waahanga whakaata koki matau, he punaha tere/whakatere tere, he punaha tohu waka, he punaha tuku raraunga, he punaha mahana tonu o te rūnanga, he punaha meteoro me tetahi wae mahi, ka taea te whakahaere mamao ma te whatunga.