Relationship of indoor particulate matter and lung function in children from the Eastern Cape Province of South Africa

GA Engwa, C Anye, BN Nkeh-Chungag
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Abstract

Background. There is a dearth of information on the relationship between indoor air pollution and lung function, especially amongsub-Saharan African children.Objective. To assess the relationship between indoor particulate matter (PM) and lung function in children living in the Eastern CapeProvince of South Africa (SA).Methods. This cross-sectional study included 540 children aged 10 - 14 years and was conducted between May and September 2016. PMfrom 23 classrooms was measured with a handheld particle counter and lung function was assessed with a handheld spirometer.Results. Mean (standard deviation) PM5 levels were higher (109.96 (75.39) μg/m3) than PM10 (84.84 (63.28) μg/m3) and PM2.5 (39.45(26.38) μg/m3). PM2.5, PM5 and PM10 correlated negatively (p<0.05) with forced expiratory volume in 1 second (FEV1), forced vital capacity(FVC), FEV25-75, as well as peak expiratory flow (PEF) but correlated positively (p<0.001) with the FEV1/FVC ratio.Conclusion. PM in classrooms showed a negative relationship with lung function in the study population.
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南非东开普省儿童室内颗粒物与肺功能的关系
背景。关于室内空气污染与肺功能之间关系的信息缺乏,特别是在撒哈拉以南非洲儿童中。评估生活在南非东开普省(SA)的儿童室内颗粒物(PM)与肺功能之间的关系。这项横断面研究包括540名10 - 14岁的儿童,于2016年5月至9月进行。用手持式颗粒计数器测量了23个教室的pmm,并用手持式肺活量计评估了肺功能。PM5平均(标准差)水平(109.96 (75.39)μg/m3)高于PM10 (84.84 (63.28) μg/m3)和PM2.5 (39.45(26.38) μg/m3)。PM2.5、PM5、PM10与1秒用力呼气量(FEV1)、用力肺活量(FVC)、FEV25-75、呼气峰流量(PEF)呈负相关(p < 0.05),与FEV1/FVC比值呈正相关(p < 0.001)。教室中的PM与研究人群的肺功能呈负相关。
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CiteScore
0.60
自引率
0.00%
发文量
21
审稿时长
12 weeks
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