生物质燃烧和呼吸产生的颗粒物。
Particulate matter originating from biomass burning and respiratory.
机构信息
Universidade Federal de Mato Grosso, Instituto de Saúde Coletiva, CuiabáMTBrazil.
出版信息
Rev Saude Publica. 2013 Apr;47(2):345-52. doi: 10.1590/S0034-8910.2013047004410.
OBJECTIVE
To analyze the effects of exposure to fine particulate matter from burning on hospital admissions due to respiratory diseases in children and the elderly.
METHODS
This is an ecological time series study that took place in the city of Cuiaba, Mato Grosso, in Brazil's Amazon Region, in 2005. Information on the daily levels of fine particulate matter PM2.5 was made available by the Brazilian National Institute for Spatial Research. The model included variables related to temperature, relative humidity and adjusts for seasonality and calendar effects. Poisson regression with generalized additive models was used.
RESULTS
A 10 µg/m3 increase in the level of exposure to PM2.5 was associated with increases of 9.1%, 9.2% and 12.1% in hospital admissions due to respiratory diseases in children for moving averages of 1, 2 and 5 days, respectively. For the dry season, the level of exposure to particulate matter was associated with increases of 11.4%, 21.6% and 22.0% in hospital admissions in children for moving averages of 1, 5 and 6 days, respectively. No significant link was noticed in the elderly.
CONCLUSIONS
The results show the influence of PM2.5 on hospitalizations for respiratory disease in children under 5 in the region studied.
目的
分析燃烧细颗粒物暴露对儿童和老年人因呼吸系统疾病住院的影响。
方法
这是一项在巴西亚马逊地区马托格罗索州库亚巴市进行的生态时间序列研究，发生于 2005 年。巴西国家空间研究所提供了细颗粒物 PM2.5 日水平的相关信息。模型纳入了与温度、相对湿度有关的变量，并对季节性和日历效应进行了调整。采用泊松回归广义相加模型进行分析。
结果
暴露于 PM2.5 水平每增加 10μg/m3，儿童呼吸系统疾病住院人数分别增加 9.1%、9.2%和 12.1%，移动平均时间分别为 1、2 和 5 天。在旱季，暴露于颗粒物的水平与儿童住院人数分别增加 11.4%、21.6%和 22.0%相关，移动平均时间分别为 1、5 和 6 天。在老年人中未发现显著关联。
结论
结果表明，PM2.5 对研究地区 5 岁以下儿童呼吸系统疾病住院的影响。
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