Estévez-García Jesús A, Rojas-Roa Néstor Y, Rodríguez-Pulido Alba I
InstitutoNacional de Salud, Bogotá, Colombia,
Engineering Faculty, Universidad Nacional de Colombia, Bogotá, Colombia,
Rev Salud Publica (Bogota). 2013 Nov-Dec;15(6):889-902.
Quantifying personal exposure to particles less than 10 micrometres in diameter (PM10) and determining the prevalence of respiratory symptoms in traffic-police officers working in Bogotá's metropolitan area.
This was a cross-sectional study of 574 traffic-police officers divided into two groups (477 traffic-police and 97 police working in an office). They were given a questionnaire inquiring about respiratory symptoms, toxicological medical evaluation, lung function tests and personal PM10 monitoring. The differences between groups were found using stratified analysis (i.e. comparing odds ratios). Multivariate analysis of factors related to symptoms and diagnosis of respiratory alteration was also performed.
Respiratory symptoms concerned a higher prevalence of cough, expectoration and rhinosinusitis in the traffic-police group. Medical examination revealed that the traffic-police group had higher nasal irritation prevalence; lung function tests showed no difference. Mean PM10 levels were higher for the traffic-police group (139.4 μg/m³), compared to the office work group (86.03 μg/m³).
PM10 values in both groups did not exceed allowable limits for respirable particles in the workplace according to ACGIH standards. Traffic-police exposed to air pollution had an increased risk of developing respiratory symptoms and signs, thereby agreeing with the results of this and other studies. Personal monitoring is a valuable tool when quantifying the concentration of PM10to which an individual has been exposed during a normal workday. This study contributes towards further research in to the effects of PM10 in populations at risk.
量化个人暴露于直径小于10微米的颗粒物（PM10）的情况，并确定在波哥大大都市地区工作的交通警察的呼吸道症状患病率。
这是一项横断面研究，对574名交通警察进行了分组（477名交通警察和97名在办公室工作的警察）。他们被给予一份问卷，询问呼吸道症状、毒理学医学评估、肺功能测试和个人PM10监测情况。使用分层分析（即比较比值比）来发现组间差异。还对与呼吸道改变症状和诊断相关的因素进行了多变量分析。
呼吸道症状方面，交通警察组咳嗽、咳痰和鼻窦炎的患病率较高。医学检查显示交通警察组鼻刺激患病率较高；肺功能测试无差异。交通警察组的平均PM10水平（139.4μg/m³）高于办公室工作组（86.03μg/m³）。
根据美国政府工业卫生学家会议（ACGIH）标准，两组的PM10值均未超过工作场所可吸入颗粒物的允许限值。暴露于空气污染的交通警察出现呼吸道症状和体征的风险增加，这与本研究及其他研究结果一致。个人监测是量化个体在正常工作日接触PM10浓度的一种有价值的工具。本研究有助于进一步研究PM10对高危人群的影响。
