地下车库汽车废气污染状况调查

以上海市静安区两个宾馆的地下车主为研究对象，并以该区某地下会堂为对照，调查了地下车库中废气污染状况，结果表明，废气中ＣＯ，Ｐｂ浓度明显超标，且与对照无明显差别（Ｐ〉０．０５），环境小气候，除风速外地下车库与会堂的气温，湿度无显著性差异，结合是地下为受汽车废气污染相当严重，应充分引起重视，为减轻下车库环境污染，须进行合理设计。

Investigation on Exhaust Gas Pollution of Underground Garage

To investigate automobile exhaust gas pollutant status of underground garage in city, two hotels of Jingan district were selected as investigated object and a underground hall as the control to study exhaust gas pollution level. The result showed that the concentration of lead and CO in exhaust gas were significantly exceeding criterion, it has significant difference compared with the controls (P<0.05). The biggest exceeding criterion multiple is equal to 21.6 and 4.64 of national criterion, respectively. Nitrogen oxides (NOx) is also exceeded both the objects and the control, they have no difference (P>0.05). The result indicated that exhaust gas pollution in subterrain garage is rather severe, it should pay great attention. In order to mitigate environmental pollution in garage, it is necessary to design reasonably underground.