制冷技术
製冷技術
제랭기술
REFRIGERATION TECHNOLOGY
2014年
5期
13-16
,共4页
地铁系统%PM2.5%回归直线关系%载客量
地鐵繫統%PM2.5%迴歸直線關繫%載客量
지철계통%PM2.5%회귀직선관계%재객량
Metro system%PM2.5%Regression linear relationship%Metro passengers
本文测试了北京、上海和广州地铁系统PM2.5浓度，测试区域分为站外、大厅、站台和车内。测试仪器采用手持式粉尘测量仪，仪器工作原理为β射线吸收法。测试结果表明：地铁系统PM2.5浓度由大到小依次为站外、大厅、站台、车内；但当站外PM2.5浓度极低时，地铁系统PM2.5浓度呈现的规律正好相反。测试结果显示地铁车内与站外PM2.5浓度存在回归直线关系；降雨及台风气候会降低车内PM2.5浓度；地铁载客量对车内PM2.5浓度无影响。
本文測試瞭北京、上海和廣州地鐵繫統PM2.5濃度，測試區域分為站外、大廳、站檯和車內。測試儀器採用手持式粉塵測量儀，儀器工作原理為β射線吸收法。測試結果錶明：地鐵繫統PM2.5濃度由大到小依次為站外、大廳、站檯、車內；但噹站外PM2.5濃度極低時，地鐵繫統PM2.5濃度呈現的規律正好相反。測試結果顯示地鐵車內與站外PM2.5濃度存在迴歸直線關繫；降雨及檯風氣候會降低車內PM2.5濃度；地鐵載客量對車內PM2.5濃度無影響。
본문측시료북경、상해화엄주지철계통PM2.5농도，측시구역분위참외、대청、참태화차내。측시의기채용수지식분진측량의，의기공작원리위β사선흡수법。측시결과표명：지철계통PM2.5농도유대도소의차위참외、대청、참태、차내；단당참외PM2.5농도겁저시，지철계통PM2.5농도정현적규률정호상반。측시결과현시지철차내여참외PM2.5농도존재회귀직선관계；강우급태풍기후회강저차내PM2.5농도；지철재객량대차내PM2.5농도무영향。
A test of PM2.5 concentration in Beijing, Shanghai and Guangzhou metro systems is performed, and the test area is divided into inbound, hall, platform and carriage. The handheld dust measuring instrument is employed, and its working principle is beta ray absorption theory. The results show that, the distributions of PM2.5 concentration in metro systems from big to small are as follows: inbound, hall, platform and carriage;when PM2.5 concentrations in inbound is very low, the distribution principle of PM2.5 concentrations of metro system is just the opposite. The results show that, PM2.5 concentrations in the metro carriage and the inbound have a regression linear relationship; the rainfall and typhoon will lower the PM2.5 concentrations in metro carriages, and metro passengers have no effect on PM2.5 concentrations in metro carriages.
