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观察证券公司空气ＣＯ２和ＣＯ（红外线测试），甲醛和ＮＯｘ（比色法），采用撞击法测定溶血性链球菌（ＨＳ）和细菌总数（ＢＴ）。结果表明：除ＢＴ外，其他污染物日变化曲线均随股民人数和吸烟程度而变化，高峰值出现在上午１０时和下午３时，但后者比前者更为突出；各污染物浓度均随距地面高度上升而下降，甲醛、ＮＯｘ和ＨＳ浓度下降明显（Ｐ均＜０．０５）；除ＢＴ外，其它污染物超标（４８．３％～７６％）普遍并严重（最大３倍），因此，建议证券公司应列入公共场所卫生监督范畴
Stock companies observed the air CO2 and CO (infrared test), formaldehyde and NOx (colorimetric method), determination of hemolytic streptococcus (HS) and the total number of bacteria (BT) by impact method. The results showed that, except for BT, the diurnal variation curves of other pollutants varied with the number of stockholders and smoking levels. The peak appeared at 10 a.m. and 3 a.m., but the latter was more prominent than the former. The concentrations of formaldehyde, NOx and HS decreased significantly (P <0.05). The concentrations of other pollutants (48.3% -76%) were common and severe (up to 3 times) Therefore, it is recommended that securities companies should be included in public health supervision areas