欢乐生肖

PM2.5是什么? 有什么危害?

2018-08-08
Survival 森晨
“PM2.5”作为空气污染的主要气体之一,它有一个容易理解的中文名——细颗粒物,是对空气中直径小于或等于2.5微米的固体颗粒或液滴的总称。这些颗粒如此细小,肉眼是看不到的,它们可以在空气中漂浮数天。
森晨 PM2.5

1.PM2.5来自哪里,都有些什么成分?

自然过程会产生PM2.5,但其主要来源还是人为排放。(相关阅读:雾霾形成的认为原因有哪些

欢乐生肖 RENLEIJIZHIJIEPAIFANGPM2.5,ERKONGQIZHONGDEQITAQITIWURANWU,YOUNENGZAIKONGQIZHONGZHUANBIANCHENGPM2.5。

ZHIJIEPAIFANGZHUYAOLAIZIRANSHAOGUOCHENG,BIRUHUASHIRANLIAO(MEI、QIYOU、CHAIYOU)DERANSHAO、SHENGWUZHI(JIEGAN、MUCHAI)DERANSHAO、LAJIFENSHAO。ZAIKONGQIZHONGZHUANHUACHENGPM2.5DEQITIWURANWUZHUYAOYOUERYANGHUALIU、DANYANGHUAWU、ANQI、HUIFAXINGYOUJIWU。

QITADERENWEILAIYUANBAOKUO:DAOLUYANGCHEN、JIANZHUSHIGONGYANGCHEN、GONGYEFENCHEN、CHUFANGYANQI。

欢乐生肖 ZIRANLAIYUANZEBAOKUO:FENGYANGCHENTU、HUOSHANHUI、SENLINHUOZAI、PIAOFUDEHAIYAN、HUAFEN、ZHENJUNBAOZI、XIJUN。 PM2.5DELAIYUANFUZA,CHENGFENZIRANYEHENFUZA。ZHUYAOCHENGFENSHIYUANSUTAN、YOUJITANHUAHEWU、LIUSUANYAN、XIAOSUANYAN、ANYAN。QITADECHANGJIANDECHENGFENBAOKUOGEZHONGJINSHUYUANSU,QIAN、XIN、SHEN、GE、TONGDENGZHUYAOYUANZIRENLEIWURANDEZHONGJINSHUYUANSU。


PM2.5

2.PM2.5对健康有什么危害?

XIKELIWUTONGCHANGBEICHENGWEIPM2.5,LAIZIMEIYANFEIQI、GONGYIZHICHENGHEDUOZHONGRIYONGHUAGONGCHANPIN,YANJIUFAXIAN,TAYUAIZHENG、XIAOCHUAN、BUYUNBUYUSHENZHICHUSHENGQUEXIANYOUGUAN。KELIWUDEDAXIAOGEYI,DANTONGCHANGKEYIZUOWEIZHIJING≤2.5DE"XIKELI"(PM2.5)HUOZHEZHIJINGZAI2.5~10μmZHIJIANDE"CUKELI"(PM10)JINXINGCELIANG。ZHIJINGXIAOYU2.5μmDEPM2.5KELIRUCIZHIXIAO,KEYIHENRONGYIBEIXIRUFEIBU,BINGKENENGDAOZHIYANZHONGDEJIANKANGWENTI,BAOKUOHUXIDAOHEXINZANGJIBING。

QIWEIXIEYOUJUKECHA,DUANQIHEZHANGQIKELIWUBAOLUHUIDAOZHIYOUHAIDEJIANKANGYINGXIANG。KEXUEJIAMENFAXIAN,ZAIPMNONGDUGAODESHIQI,HUXIDAOJIBINGHUOZHEXINZANGJIBINGDEZHUYUANLV、JIZHENSHIJIUZHENLVHEYISHENGBAIFANGLVJIAOGAO。ZAIGAOPMSHUIPINGDESHIQI,KEXUEJIAMENHAIFAXIAN,XIAOCHUANHEJI、MANXINGZHIQIGUANYANZHENGZHUANGYOUSUOEHUA。GAOPMSHUIPINGYURENDEFEIBUGEZHONGJIANKANGGONGNENGDEJIANGDIYOUGUAN。