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表征室外人体暴露的监测网络设计(续完)
引用本文:池靖.表征室外人体暴露的监测网络设计(续完)[J].干旱环境监测,2006,20(4):251-253.
作者姓名:池靖
作者单位:中国环境监测总站,北京,100029
摘    要:对悬浮颗粒物室外人体暴露的测定一直受到可用资源的限制。设计有效的网络就要求对测定方法的选择、采样点的数量、采样时间、采样频率等进行调整。采样位置要求能表征因周围污染源对附近地区和城市最小影响的空间数值。虽然大多数判定PM是否达标的测定方法是每第3天至第6天的24h监测,但是室外人体暴露的评价要求连续监测一整天。最好有1h或更短时间的监测时段。更详细的粒径大小和化学性质数据也很有必要,因为较小的颗粒及其特殊的化学物质要比总的样品质量更有助于反映对健康的不良影响。

关 键 词:网络设计  空气质量  人体暴露
文章编号:1007-1504(2006)04-0251-03
收稿时间:2006-03-03
修稿时间:2006年3月3日

Monitoring Network Design on Representation Outdoor Human Exposure
CHI Jing.Monitoring Network Design on Representation Outdoor Human Exposure[J].Arid Environmental Monitoring,2006,20(4):251-253.
Authors:CHI Jing
Institution:Environmental Monitoring of China,Beijing 100029,China
Abstract:Measurements of outdoor human exposure to suspended particulate matter(PM) are always constrained by available resources.An effective network design requires tradeoffs between variables measured,the number of sampling locations,sample duration,and sampling frequency.Sampling sites are needed to represent neighborhood and urban spatial scales with minimal influences from nearby sources.Although most PM measurements for determining compliance with standards are taken over 24?h periods every third to sixth day,outdoor human exposure assessment requires measurements taken continuously throughout the day,preferably over durations of 1?h or less.More detailed particle size and chemistry data are also desirable,as smaller size fractions and specific chemicals may be better indicators of adverse health effects than total mass samples.
Keywords:PM2  5  PM10
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