由空气质量指数计算污染物浓度（精选）.xls

文档介绍：范围指数浓度二氧化硫指数二氧化硫浓度
0-50 33 0
51-100 78 0
101-200 156 0
200-300 232 0
300-400 356 0
400-500 447 0
>500 > 0
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