批踢踢實業坊 Examination 板: [考題] 102年普考環防-微粒－2016徵求年菜推薦網路訂購最紅的商家.年菜訂購?台北年菜外送餐廳推薦(年菜)?年菜.今年不想做年菜推薦,網路宅配哪一家好?

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批踢踢實業坊 Examination 板

Jul 17th 2013, 10:58, by sandy18932

作者sandy18932 (周昀忻)

看板Examination

標題[考題] 102年普考環防-微粒

時間Wed Jul 17 10:58:46 2013

【出處】102年普考環防-微粒【題目】空氣品質標準中對微粒之數量常以PM10 及PM2.5來規範，請說明此兩項目各代表何物質？為何會採用10 及2.5 這兩數字?另直徑更小之含矽粉塵及香煙塵微粒會造成人體那些傷害？（20 分）想法：主要是想要請教其中一個子題：『為何會採用10 及2.5 兩數字?』我亂猜想，是因為大氣中的微粒收集後，大氣微粒粒徑會有3個Peak嗎？取這3個peak的值嗎？還請各位先進不吝提示與指導，謝謝您 ^^ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 219.84.116.48

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