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Relating Indoor Pollutant Concentrations of Ozone and Sulfur Dioxide to Those Outside 将室内臭氧和二氧化硫污染物浓度与室外污染物浓度联系起来
在13栋独立的建筑中使用24个独立的通风系统进行测试,以确定与建筑物内臭氧的异质性损失相关的速率常数k。其他地方进行的试验数据用于确定实验室办公楼内二氧化硫非均匀损失的速率常数。根据上述试验中获得的数据,设计、建造了一个辅助空气过滤系统(使用九个活性炭过滤器),并运行了三年。该系统仅在室外臭氧浓度超过0.08 ppm时过滤补充气流。 在这种操作下,去除臭氧的过滤器寿命似乎约为三年,在此期间,室内臭氧浓度从未超过联邦标准。建议在城市地区建造新建筑,以便除了过滤掉补充空气和再循环空气混合物中的灰尘外,还可以选择性地过滤补充空气。此外,建议在外部空气质量良好时,设计允许旁通补充空气的选择性过滤器。
Tests were conducted with 24 separate ventilation systems present in 13 separate buildings to determine the rate constant, k, associated with the heterogeneous loss of ozone within buildings.Data from tests conducted elsewhere were used to determine the rate constant for the heterogeneous loss of sulfur dioxide within a laboratoryoffice building.Based upon the data obtained in the above-mentioned tests, an auxiliary air filtration system (utilizing nine activated charcoal filters ) was designed, constructed and operated for a period of three years. This system filtered the make-up airstream only when the outdoor concentration of ozone rose above 0,08 ppm. The filter life for ozone removal appears to be about three years under such operation, During this time the indoor concentrations of ozone never exceeded the Federal Standard.I t is recommended that new buildings located in urban areas be constructed so that the make-up air be selectively filtered in addition to filtering out the dust in the mixture of make-up plus recirculated air. Furthermore, i t is recommended that the design permit the selective filter for the make-up air to be bypassed when the outside air quality is good.
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