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ѹ֪ܵʶ3

ϩ

̼

Ũ
mg/m3

40.0

2.0

0.5

10.0

1.0

סŨ
ƽmg/m3

0.8

0.05

0.04
һΣ

0.007
һ0.02

ɱ2ɼڳеŨԶԶڼΣʡͬʱݹҵйܵ͵ԡܱص㣬ԼԱĽӴʱ䳤̺жʵҲӦڼΣʵķΧԣʵʹȷʵĶ̶ӦļȷĶʻļָʩչ淶Ϊ׼
⣬ڽӴʱ䳤ҹδƶйر׼ҵרһ飨ACGIHƼֽӴֵΪο
18Сʱջ40СʱܵʱȨƽֵΪָ꣬ڴŨ£ӴȫԱ²Ӱ죻
2ԶʱӴÿβ15ӣÿ첻4Σÿμ1СʱʱȨƽֵΪָ꣬ڴŨ£˶ʱӴ̼áԻ򲻿֯仯˺Ծ˻ЧԽ͵ȣ
3ֵָʹ˲ҲóŨȡ
Cʵĸʴԣָ֯Թܵ𻵵ʣᡢԼ𺦵⡢ȡ

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