发生化学事故后，现场人员应向上风或侧上风方向迅速撤离现场。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30401' and id < 2457744 and id<>'2457744' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30401' and id > 2457744 and id<>'2457744' order by id asc limit 5