Association between Ambient Air Pollution and Emergency Room Visits for Respiratory Diseases in Spring Dust Storm Season in Lanzhou, China.
Association between Ambient Air Pollution and Emergency Room Visits for Respiratory Diseases in Spring Dust Storm Season in Lanzhou, China.
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DOI：
10.3390/ijerph13060613
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发表时间：
2016-06-21
影响因子：
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通讯作者：
Zheng X
中科院分区：
文献类型：
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作者：
Ma Y;Xiao B;Liu C;Zhao Y;Zheng X
背景：空气污染已成为全球重大公共卫生问题。许多研究已经证实，在发达国家和一些亚洲国家，空气污染物与呼吸系统疾病急诊室就诊之间存在关联，但在中国西部却鲜有证据。本研究旨在集中研究该地区。方法：采用时间序列分析方法，考察2007年至2011年兰州市主要空气污染物（PM10、SO2和NO2）对呼吸系统疾病急诊就诊的具体影响。我们研究了空气污染物对按年龄和性别分层的群体的影响，考虑了春季沙尘暴的改变效应，以测试可能的相互作用。结果：春季沙尘季节兰州每日急诊就诊表明，室外空气污染浓度与呼吸道疾病之间存在显着相关性。空气污染与急诊就诊之间的关联似乎在沙尘日比非沙尘日更为明显。 3 天 PM10 (L3)、5 天 SO2 (L5) 以及当前和之前 2 天 NO2 (L01) 平均值每增加 10 µg/m3 的相对风险 (RR) 和 95% CI 分别为 1.140 (1.071–1.214)、1.080 (0.967–1.205) 和 1.298沙尘天分别为 (1.158–1.454)。研究发现，老年女性、老年男性和成年男性在沙尘日的 PM10、SO2 和 NO2 与急诊就诊之间的关联性更为显着。结论：本研究强化了兰州因粉尘加剧而就诊呼吸道疾病的急诊室就诊的证据。
Background: Air pollution has become a major global public health problem. A number of studies have confirmed the association between air pollutants and emergency room (ER) visits for respiratory diseases in developed countries and some Asian countries, but little evidence has been seen in Western China. This study aims to concentrate on this region. Methods: A time-series analysis was used to examine the specific effects of major air pollutants (PM10, SO2 and NO2) on ER visits for respiratory diseases from 2007 to 2011 in the severely polluted city of Lanzhou. We examined the effects of air pollutants for stratified groups by age and gender, accounting for the modifying effect of dust storms in spring to test the possible interaction. Results: Significant associations were found between outdoor air pollution concentrations and respiratory diseases, as expressed by daily ER visits in Lanzhou in the spring dust season. The association between air pollution and ER visits appeared to be more evident on dust days than non-dust days. Relative risks (RRs) and 95% CIs per 10 µg/m3 increase in 3-day PM10 (L3), 5-day SO2 (L5), and the average of current and previous 2-day NO2 (L01) were 1.140 (1.071–1.214), 1.080 (0.967–1.205), and 1.298 (1.158–1.454), respectively, on dust days. More significant associations between PM10, SO2 and NO2 and ER visits were found on dust days for elderly females, elderly males and adult males, respectively. Conclusions: This study strengthens the evidence of dust-exacerbated ER visits for respiratory diseases in Lanzhou.