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地下商场是国内近几年迅速发展起来的商业场所。据初步调查[1] ,地下商场内氡及其子体浓度较高 ,且人口密集 ,是人群集体有效剂量较高的场所。此类场所 ,若无良好的机械通风设备 ,场所内空气交换率较差 ,高浓度的氡及其子体有可能对身体健康造成潜在危害。但全国、全省还没有对
Underground shopping malls in China in recent years, the rapid development of commercial places. According to the preliminary investigation [1], the concentration of radon and its progeny in the underground shopping mall is relatively high and densely populated, which is a place where the collective effective dose of the population is high. Such places, without good mechanical ventilation, have poor air exchange rates in places where high levels of radon and its daughters may potentially harm their health. But the whole country, the province is not right