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目的 :了解公共场所空气质量对人体健康的影响 ,确保广大顾客和从业人员的身心健康。 方法 :对乌鲁木齐市 10家饭馆空气质量进行了调查及实验研究 ,各饭馆采用不同仪器和化学方法测定 SO2 、NOx、可吸入尘(IP)、空气细菌、平均等效声级、照度和微小气候。结果 :IP均超过公共场所饭馆 (餐厅 )国家卫生标准 (以下简称国家卫生标准 ) 2 .8～ 6 .8倍 ,各采样点和不同时间平均值之间均有显著性差异。平均等效声级均超过国家卫生标准 ,下午与晚上有显著性差异 (P <0 .0 5 ) ,但各采样点之间无显著性差异 (P >0 .0 5 )。 SO2 、NOx均低于国家卫生标准 ,但只有 SO2 下午和晚上测得的平均值之间有显著性差异 (P <0 .0 1)。空气细菌未超过国家卫生标准 ,不同时间和不同采样点测定平均值之间无显著性差异 (P >0 .0 5 )。微小气候中气湿超过国家卫生标准 ,不同时间测得的平均值之间有显著性差异 (P<0 .0 5 ) ,气温、气流、气压三项指标不同时间、不同采样点之间均无显著性差异 (P>0 .0 5 )。 结论 :公共场所卫生监督检验对人群健康具有重要意义
Objectives: To understand the impact of air quality in public places on human health and ensure the physical and mental health of the vast number of customers and employees. Methods: The air quality of 10 restaurants in Urumqi was investigated and experimentally studied. Each restaurant used different instruments and chemical methods to determine SO2, NOx, inhalable dust (IP), airborne bacteria, average sound level, illuminance and microclimate . Results: IP exceeded the national health standards (hereinafter referred to as the national health standards) in public places by 2.8 times to 6.8 times, and there was a significant difference between the sampling points and the average of different time points. The average equivalent sound level exceeded the national health standards, there was a significant difference between afternoon and evening (P <0.05), but there was no significant difference between the sampling points (P> 0.05). SO2 and NOx were lower than the national health standards, but there was a significant difference (P <0. 01) between the mean value of SO2 measured in the afternoon and evening. Air bacteria did not exceed the national health standards, different time and different sampling points measured between the average no significant difference (P> 0.05). In the microclimate, the air humidity exceeded the national health standard, and there was a significant difference (P <0. 05) between the mean values measured at different time points. There were no significant differences between the three indicators of temperature, air flow and air pressure at different time points Significant difference (P> 0.05). Conclusion: Health supervision and inspection in public places is of great significance to the health of the population