点源二氧化硫峰值与哮喘的医院就诊情况
Point source sulphur dioxide peaks and hospital presentations for asthma.
作者信息
Donoghue A M, Thomas M
机构信息
Medical Centre, Mount Isa, Queensland, Australia.
出版信息
Occup Environ Med. 1999 Apr;56(4):232-6. doi: 10.1136/oem.56.4.232.
OBJECTIVE
To examine the effect on hospital presentations for asthma of brief exposures to sulphur dioxide (SO2) (within the range 0-8700 micrograms/m3) emanating from two point sources in a remote rural city of 25,000 people.
METHODS
A time series analysis of SO2 concentrations and hospital presentations for asthma was undertaken at Mount Isa where SO2 is released into the atmosphere by a copper smelter and a lead smelter. The study examined 5 minute block mean SO2 concentrations and daily hospital presentations for asthma, wheeze, or shortness of breath. Generalised linear models and generalised additive models based on a Poisson distribution were applied.
RESULTS
There was no evidence of any positive relation between peak SO2 concentrations and hospital presentations or admissions for asthma, wheeze, or shortness of breath.
CONCLUSION
Brief exposures to high concentrations of SO2 emanating from point sources at Mount Isa do not cause sufficiently serious symptoms in asthmatic people to require presentation to hospital.
目的
研究在一个拥有25000人口的偏远乡村城市中，短期暴露于两个点源排放的二氧化硫（SO₂）（浓度范围为0 - 8700微克/立方米）对哮喘患者就医情况的影响。
方法
在芒特艾萨进行了二氧化硫浓度与哮喘患者就医情况的时间序列分析，当地的一家铜冶炼厂和一家铅冶炼厂向大气中排放二氧化硫。该研究考察了5分钟时间段内二氧化硫的平均浓度以及每日因哮喘、喘息或呼吸急促而就医的情况。应用了基于泊松分布的广义线性模型和广义相加模型。
结果
没有证据表明二氧化硫峰值浓度与哮喘、喘息或呼吸急促患者的就医或住院情况之间存在任何正相关关系。
结论
在芒特艾萨，短期暴露于点源排放的高浓度二氧化硫不会使哮喘患者出现足够严重的症状而需前往医院就诊。
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