Hauv cov nroog uas muaj cov emissions siab, huab cua muaj ntau cov sulfur dioxide thiab cov khoom siv (xws li 30% dej-insoluble residue, 33% hlawv-tawm roj residue, 20% hlau oxides, thiab 8% dej-soluble sulfates, thiab lwm yam. .). Thaum sulfur dioxide yaj hauv dej nag, nws dhau los ua acidic, ua rau khaus corrosion rau zinc txheej. Txawm hais tias cov txheej txheem tiv thaiv zinc oxide, zinc hydroxide, thiab zinc carbonate tau tsim nyob rau saum npoo ntawm zinc txheej, nws tuaj yeem hloov mus rau hauv cov zinc sulfate soluble hauv cov kua qaub aqueous heev thiab raug ntxuav tawm, ua kom lub zog corrosion. Yog li ntawd, tus nqi corrosion ntawm zinc txheej yog yuav luag proportional rau cov sulfur dioxide cov ntsiab lus nyob rau hauv cov huab cua.
Cov khoom siv kuj tuaj yeem ua rau thaj tsam corrosion ntawm cov zinc txheej. Qee qhov ntawm cov khoom no yog hygroscopic, txhais tau tias lawv tuaj yeem nyiam thiab tuav cov dej noo, yaj cov tshuaj sulfur los tsim cov kua qaub uas ua rau cov zinc txheej ntawm cov chaw ntawd. Feem ntau, tus nqi corrosion ntawm zinc coatings nyob rau hauv muaj sulfur-muaj cov cua sov yog kwv yees li 420 mus rau 770 milligrams ib square decimeter ib xyoo.
