Ko te painga o te momo i ringihia whanariki pourewa ki runga ki te pourewa whanariki uku tuku iho, rehu momo whanariki pourewa me te muka karaihe whakapakaritia pourewa absorption kirihou e te nuinga kitea i roto i te āhuatanga e whai ake nei:
ko te 1. Ko te whanariki pourewa momo rehu ngāwari ki te whakahaere, me te hua sulfurous Ka pumau te waikawa waikawa, ka whakaiti i te kakara o te so2 me te whakaiti i te aukati taiao.
2. He maamaa te whakatikatika, te pupuri i te pourehu momo whanariki. Mena he pai te paanga, kaore he tiaki mo te tau kotahi te tau. Kaore he karaihe karaihe kua whakapakarihia ranei he peera kirihou ranei.
3. Ko te pourehu whanariki he rehu pai o te SO2. Ko te reiti whakauru o SO2 te nuinga kei runga ake i te 95%. Ko te tikanga o te whanaketanga o etahi atu pourehu whanariki kei te 75% te nuinga, e nui ake ai nga utu whanariki i te tau kotahi.