RESPIRATORY HEALTH AND PM10 POLLUTION - A DAILY TIME-SERIES ANALYSIS
RESPIRATORY HEALTH AND PM10 POLLUTION - A DAILY TIME-SERIES ANALYSIS
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DOI：
10.1164/ajrccm/144.3_pt_1.668
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发表时间：
1991-09-01
期刊：
影响因子：
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通讯作者：
RAIZENNE, ME
中科院分区：
文献类型：
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作者：
POPE, CA;DOCKERY, DW;RAIZENNE, ME
这项研究评估了与细颗粒物污染（PM10）每日变化相关的呼吸系统健康变化。参与者包括一个相对健康的小学四年级和五年级学生的样本，和一个8至72岁的哮喘患者的样本。150 μ g/m3的PM10污染水平升高与肺功能下降约3%至6%相关，这是通过峰值呼气流量（PEF）测量的。PM10水平与PEF之间存在当日和日滞后相关性。PM10污染水平的升高也与呼吸道疾病症状和哮喘药物使用的增加有关。即使PM10水平远低于150微克/立方米的24小时国家环境空气质量标准，也观察到呼吸系统健康受损与PM10污染升高之间存在关联。即使排除唯一超标的污染事件，PM10水平升高、PEF降低、呼吸道疾病症状增加和哮喘药物使用之间的关联仍然具有统计学意义。同时测量表明，很少或没有强粒子酸性。
This study evaluated changes in respiratory health associated with daily changes in fine particulate pollution (PM10). Participants included a relatively healthy school-based sample of fourth and fifth grade elementary students, and a sample of patients with asthma 8 to 72 yr of age. Elevated PM10 pollution levels of 150-mu-g/m3 were associated with an approximately 3 to 6% decline in lung function as measured by peak expiratory flow (PEF). Current day and daily lagged associations between PM10 levels and PEF were observed. Elevated levels of PM10 pollution also were associated with increases in reported symptoms of respiratory disease and use of asthma medication. Associations between compromised respiratory health and elevated PM10 pollution were observed even when PM10 levels were well below the 24-h national ambient air quality standard of 150-mu-g/m3. Associations between elevated PM10 levels, reductions in PEF, and increases in symptoms of respiratory disease and asthma medication use remained statistically significant even when the only pollution episode that exceeded the standard was excluded. Concurrent measurements indicated that little or no strong particle acidity was present.