The effect is more notakle at Qingdao , Jiangjin and Wanning, where are characterized with marine salt pollution, acid rain pollution and humid hot plus marine sa lt pollution respectively.

• 在有二氧化硫及氯离子污染的江津、青岛，非耐候钢的腐蚀明显高于耐候钢，在湿热和严重氯离子污染的万宁地区，耐候钢也显示了较好的耐蚀性。