光学技术
光學技術
광학기술
OPTICAL TECHNOLOGY
2010年
1期
29-32
,共4页
佟彦超%刘文清%张天舒%董云生%赵雪松
佟彥超%劉文清%張天舒%董雲生%趙雪鬆
동언초%류문청%장천서%동운생%조설송
激光雷达%输送通量%污染源监测%颗粒物
激光雷達%輸送通量%汙染源鑑測%顆粒物
격광뢰체%수송통량%오염원감측%과립물
lidar%transport flux%pollution monitoring%particles
PM10指能进入呼吸道的质量中值直径小于等于10μm的颗粒物,它是反应环境质量的重要指标,大气中过多的PM10会严重危害身体健康.激光雷达可以测量大气颗粒物消光系数,近地面颗粒物消光系数与颗粒物质量浓度是相关的,利用震荡天平(TEOM)测量近地面的PM10质量浓度,与雷达测量的消光系数建立经验关系,可以推算PM10质量浓度的垂直分布.风廓线雷达可以获得不同高度上的风向风速,将PM10质量浓度与风场数据二者结合可以计算不同高度上颗粒物向城区的输送通量,最终可以估算污染源向城区的输送总量.使用激光雷达技术对北京重要工业污染源进行了长时间的连续监测,获取了颗粒物输送通量等多种参数,给出了连续监测结果.
PM10指能進入呼吸道的質量中值直徑小于等于10μm的顆粒物,它是反應環境質量的重要指標,大氣中過多的PM10會嚴重危害身體健康.激光雷達可以測量大氣顆粒物消光繫數,近地麵顆粒物消光繫數與顆粒物質量濃度是相關的,利用震盪天平(TEOM)測量近地麵的PM10質量濃度,與雷達測量的消光繫數建立經驗關繫,可以推算PM10質量濃度的垂直分佈.風廓線雷達可以穫得不同高度上的風嚮風速,將PM10質量濃度與風場數據二者結閤可以計算不同高度上顆粒物嚮城區的輸送通量,最終可以估算汙染源嚮城區的輸送總量.使用激光雷達技術對北京重要工業汙染源進行瞭長時間的連續鑑測,穫取瞭顆粒物輸送通量等多種參數,給齣瞭連續鑑測結果.
PM10지능진입호흡도적질량중치직경소우등우10μm적과립물,타시반응배경질량적중요지표,대기중과다적PM10회엄중위해신체건강.격광뢰체가이측량대기과립물소광계수,근지면과립물소광계수여과립물질량농도시상관적,이용진탕천평(TEOM)측량근지면적PM10질량농도,여뢰체측량적소광계수건립경험관계,가이추산PM10질량농도적수직분포.풍곽선뢰체가이획득불동고도상적풍향풍속,장PM10질량농도여풍장수거이자결합가이계산불동고도상과립물향성구적수송통량,최종가이고산오염원향성구적수송총량.사용격광뢰체기술대북경중요공업오염원진행료장시간적련속감측,획취료과립물수송통량등다충삼수,급출료련속감측결과.
PM10 refer to the particles which mass median diameter less than or equal to 10 micrometer. It is an important indicator of environmental quality. Overfull PM10 in air will be harm to health seriously. Lidar (Light Detection And Ranging) can measure the extinction coefficient of atmospheric particulate matter, which has good correlation with mass concentration of particles. Mass concentration of PM10 measured by TEOM(Tapered Element Oscillating Microbalance). The empirical relationship established to estimate vertical distribution of mass concentration of PM10. Wind speed profilers are acquired using wind radar, by which fluxes of PM10 transport can be calculation. An industrial pollution sources (Capital Steel Company) are monitored in a long term. Transport fluxes of PM10 are present.