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The active surface of suspended particles as a predictor of lung function and pulmonary symptoms in Austrian school children

机译:悬浮颗粒的活性表面可预测奥地利学童的肺功能和肺部症状

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At a central elementary school in the capital of Upper Austria children aged 7-10 years underwent repeated respiratory health checkups (questionnaires, diaries, spirometry). Between March and May 2001 the daily means of the signals of a diffusion charging sensor, measuring the "active surface" of suspended particles, and a photoelectric aerosol sensor, measuring the particle-bound polycyclic aromatic hydrocarbons, were related to spirometric results of the total 164 children examined and to the daily symptom scores of a susceptible subgroup. Significant reductions of forced vital capacity (p = 0.006) and forced expiratory volume in the first second (p = 0.001) and significant increases of wheezing (p = 0.001), shortness of breath (p = 0.041), cough in the evening (p = 0.031) and at night (p = 0.018) were found with increase of "active surface" of suspended particles measured at the adjacent outdoor monitoring station, but not with the increase of particle-bound polycyclic aromatic hydrocarbons. Monitoring "active surface" of particles with diameters of about 10 nm-1 mum by means of a diffusion charging sensor might provide additional information in surveillance of particulate matter for prevention of acute effects on respiratory health. (C) 2003 Elsevier Science Ltd. All rights reserved. [References: 31]
机译:在上奥地利州首都的一所中央小学,对7至10岁的儿童进行了反复的呼吸健康检查(问卷,日记,肺活量测定)。 2001年3月至2001年5月之间,扩散电荷传感器(测量悬浮颗粒的“活性表面”)和光电气溶胶传感器(测量与颗粒结合的多环芳烃)的信号日均与总量的肺活量测定结果有关。检查了164名儿童,并比较了易感亚组的每日症状评分。第一秒钟的强迫肺活量(p = 0.006)和强制呼气量显着减少(p = 0.001),喘息(p = 0.001),呼吸急促(p = 0.041),夜间咳嗽(p)显着增加= 0.031)和在夜间(p = 0.018)与在相邻的室外监测站测量的悬浮颗粒的“活性表面”增加有关,但与与颗粒结合的多环芳烃的增加没有关系。借助于扩散充电传感器监测直径约为10 nm-1微米的颗粒的“活性表面”可能会提供有关颗粒物监测的其他信息,以防止对呼吸健康的急性影响。 (C)2003 Elsevier ScienceLtd。保留所有权利。 [参考:31]

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