pm2.5Ϊ0
352ʹõʱpm2.5ʾ0 - ZOLʴ
ʹ352ʱ,PM2.5ʾΪ0,¼ԭµ:1. :ΧеȾʱ,ĶܻʾΪ0ʱڿ,ô...
pm2,5ֵΪ0ʲô˼?
PM2.5ָпѧֱСڵ 2.5 m ĿҲϸֵԽߣʹȾԽءPM2.5Ŀ±24Сʱƽ...
PM2.5Ϊ?
ġӿѧ˵PM2.5ֱָСڵ2.5ĿPM2.5PM2.0PM0.1PM0.01ȵȣࡣĿǰĹʿվ...
ûpm2.50Ⱦ,û
ûо0ӽ0еġ֮ǰpm2.5ǣɭٲԱҲиλŵҲܴﵽλڸӾͷſڿԴﵽ0ײ...
Pm2.5Ϊ0 - - ʾ?
05ûʲô壬ͷPM2.5Ͳʲôѵļ
pm2.5Ϊ0,Ŀط
2.ɽʽʮӺߵľΪʮ㣬Ӻӽÿ20̩ƶλɽPM 2.5ӽ0 3.ɭ...
PM2.5ָ(AQI),ʵŨ...
ʵ0.035˼ǣ0.035mg/mԱʾΪ 35 g/mµAQI㷽ָǸPM2.5ڿеĺģ...
Ŀpm2.5бҪΪ0?
ɣ²ؾԣpm2.5ֵ¡
pm2.50~35?
Լװpm2.50~35g/ţpm2.5ֱָСڵ2.5Ŀpm2.5...
Ŀpm2.5бҪΪ0?˸,...
ʡĵļʾ,װ귿ӵڼȩŨ0.2mg/m30.3mg/m3֮,ͨСʱ֮,ڼȩŨȾͻή0.1mg/m3,ﵽ߽ӽҹ涨...