溜冰场内部的二氧化氮暴露情况。
Nitrogen dioxide exposures inside ice skating rinks.
作者信息
Brauer M, Spengler J D
机构信息
Department of Medicine, University of British Columbia, Vancouver, Canada.
出版信息
Am J Public Health. 1994 Mar;84(3):429-33. doi: 10.2105/ajph.84.3.429.
OBJECTIVES
The common operation of fuel-powered resurfacing equipment in enclosed ice skating rinks has the potential for producing high concentrations of carbon monoxide and nitrogen dioxide. Exposures to these gaseous combustion products may adversely affect the health of those inside the rink. Little information is available on pollutant concentrations under normal operating conditions.
METHODS
One-week average nitrogen dioxide concentrations in 70 northeastern US rinks were measured with passive samplers during normal winter season conditions.
RESULTS
The median nitrogen dioxide level inside rinks was 180 ppb, more than 10 times higher than the median outdoor concentration. One-week average nitrogen dioxide concentrations above 1000 ppb were measured in 10% of the rinks.
CONCLUSIONS
Considering that short-term peak concentrations were likely to have reached two to five times the measured 1-week averages, our results suggest that nitrogen dioxide levels were well above short-term air quality guidelines and constitute a public health concern of considerable magnitude.
目的
燃油重铺设备在封闭的溜冰场中普遍运行，有可能产生高浓度的一氧化碳和二氧化氮。接触这些气态燃烧产物可能会对溜冰场内部人员的健康产生不利影响。关于正常运行条件下的污染物浓度，现有信息很少。
方法
在美国东北部的70个溜冰场，在正常冬季条件下，用被动采样器测量了一周的平均二氧化氮浓度。
结果
溜冰场内部二氧化氮水平的中位数为180 ppb，比室外浓度中位数高出10倍以上。在10%的溜冰场中，测得一周平均二氧化氮浓度超过1000 ppb。
结论
考虑到短期峰值浓度可能达到实测一周平均值的两到五倍，我们的结果表明，二氧化氮水平远高于短期空气质量指南，构成了相当严重的公共卫生问题。
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