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  3. Environmental and Occupational Health Sciences / 環境與職業健康科學研究所
  4. 臭氧及PM1/PM2.5/PM10氣懸微粒之暴露及健康風險評估─子計畫六:臭氧及PM1/PM2.5/PM10氣懸微粒之加成健康效應及風險評估(III)
 
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臭氧及PM1/PM2.5/PM10氣懸微粒之暴露及健康風險評估─子計畫六:臭氧及PM1/PM2.5/PM10氣懸微粒之加成健康效應及風險評估(III)

Other Title
Ozone and PM1/PM2.5/PM10 particulate joint health effect and its risk
assessment
Date Issued
2001-07-31
Date
2001-07-31
Author(s)
陳保中
DOI
892621Z002063
URI
http://ntur.lib.ntu.edu.tw//handle/246246/4950
Abstract
We assessed the contributions of particulate matter (PM10, PM2.5), NO2, and ozone concentrations to peak expiratory flow rate (PEFR) in 52 schoolchildren for 22 days during two periods in 2000 and 2001. We measured peak flow in the morning on children’s arrival at school and in the evening before departing from school. Air pollutant concentrations were obtained from the Taiwan EPA fixed-site air monitoring station. Mean daytime (8am-4pm) ozone concentration was 28.33 ppb (maximum=75.31 ppb), and mean daytime particulate level was 55.73 ìg/m 3 (maximum 162.45 ìg/m 3 ) for PM10 and 33.86ìg/m 3 (maximum 68.93 ìg/m 3 ) for PM2.5. We found a significant negative association between morning PEFR and pre-day mean daytime ozone concentrations(β-coefficient = -0.16; p=0.01 ), and evening PEFR and same-day (β-coefficient = -0.20; p=0.02 )and pre-day mean daytime ozone concentrations (β-coefficient = -0.17; p=0.04 ), after adjusted gender, height, symptom, season, temperature, and co-pollutants. But we were not able to demonstrate any association between daily PEFR and mean daytime PM10, PM2.5, and NO2.
Subjects
ozone
particulates
peak expiratory flow
rate
respiratory symptoms
risk assessment
school children
time-series panel study
Publisher
臺北市:國立臺灣大學公共衛生學院職業醫學與工業衛生研究所
Type
report
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