科技视界
科技視界
과기시계
Science&Technology Vision
2013年
31期
54-55
,共2页
细颗粒物PM2.5%污染%统计分析%唐山
細顆粒物PM2.5%汙染%統計分析%唐山
세과립물PM2.5%오염%통계분석%당산
Fine particulate matter PM2.5%Pollution%Statistical analysis%Tangshan
根据2013年1~9月唐山市城市空气质量PM2.5监测资料进行统计分析，表明PM2.5污染具有季节性,冬季污染严重,春夏季较低。PM2.5浓度日变化则呈双峰状态，高峰出现在上午8~9时，次高峰出现在晚上21~22时。地域分布则呈现出越靠近市中心 PM2.5浓度越高的特征。 PM2.5/PM10的比值为0.606，表明唐山市区空气中细颗粒物PM2.5在PM10中的比重大于粗颗粒物，细颗粒物PM2.5污染严重。
根據2013年1~9月唐山市城市空氣質量PM2.5鑑測資料進行統計分析，錶明PM2.5汙染具有季節性,鼕季汙染嚴重,春夏季較低。PM2.5濃度日變化則呈雙峰狀態，高峰齣現在上午8~9時，次高峰齣現在晚上21~22時。地域分佈則呈現齣越靠近市中心 PM2.5濃度越高的特徵。 PM2.5/PM10的比值為0.606，錶明唐山市區空氣中細顆粒物PM2.5在PM10中的比重大于粗顆粒物，細顆粒物PM2.5汙染嚴重。
근거2013년1~9월당산시성시공기질량PM2.5감측자료진행통계분석，표명PM2.5오염구유계절성,동계오염엄중,춘하계교저。PM2.5농도일변화칙정쌍봉상태，고봉출현재상오8~9시，차고봉출현재만상21~22시。지역분포칙정현출월고근시중심 PM2.5농도월고적특정。 PM2.5/PM10적비치위0.606，표명당산시구공기중세과립물PM2.5재PM10중적비중대우조과립물，세과립물PM2.5오염엄중。
It analyzed the automatic monitoring data of PM2.5 in Tangshan from Jan 2013 to September. The results showed that PM2.5 pollution is seasonal, it was polluted seriously in winter and low in In spring and summer. There were 2 peaks of PM2.5 a day, the maxi mum and sub-maximum appeared at 8~9 am and 21~22 pm, The geographical distribution is more close to the city center features the higher concentration of PM2.5. The ratio of PM2.5/PM10 was 0.606, indicating that the fine particulate matter PM2.5 in the proportion of PM10 is greater than the coarse, so the fine particulate matter PM2.5 pollution is serious in Tanshan.
