A.绿牌
B.黄牌
C.红牌
D.蓝牌
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)
A . 每座灰库顶上设1套排气过滤器,净化后的空气直接排入大气
B . 过滤速度不大于0.8m/min
C . 其过滤效率大于99.95%
D . 过滤后的排气中含尘浓度小于30mg/m3