银川市某区15所幼儿园室内空气质量调查

发布时间：2018-06-28 05:52

本文选题：幼儿园 + 室内空气质量　；参考：《环境与职业医学》2015年09期

【摘要】：[目的]通过对银川市某区15所幼儿园室内空气中一氧化碳(CO)、挥发性有机物(VOCs)、甲醛(HCHO)、二氧化碳(CO2)及细菌总数进行检测分析,为银川市幼儿园室内空气质量现状提供基础数据。[方法]于2014年4月—6月采用随机抽样的方法抽取银川市某区15所幼儿园45间教室,采用GXH-3010/3011便携式红外线CO、CO2仪、RAE systems Inc挥发性有机化合物检测仪、4160-19.99型HCHO分析仪分别检测幼儿园室内空气中CO、CO2、VOCs、HCHO含量;采用柯赫沉降法测定幼儿园室内空气中细菌总数,并依据GB/T 18883—2002《室内空气质量标准》对检测数据进行评价。[结果]银川市某区15所幼儿园45间教室室内空气中CO2极大值为0.122%,是GB/T 18883—2002《室内空气质量标准》(0.1%)的1.22倍;HCHO极大值为0.107 mg/m3,是国家标准(0.1 mg/m3)的1.07倍。CO极大值为1.000 mg/m3(国家标准1.0 mg/m3);VOCs极大值为0.125 mg/m3(国家标准0.6 mg/m3);细菌总数极大值为7.4 cfu/皿(国家标准45 cfu/皿)。公办幼儿园室内VOCs含量[M(P25~P75)]为0.016(0.008~0.044)mg/m3,与民办幼儿园[0.003(0.000~0.007)mg/m3]比较,差异有统计学意义(P0.05)。[结论]银川市部分幼儿园室内空气质量较好,但极少数幼儿园室内HCHO、CO2含量超标,应引起重视并采取综合控制措施。
[Abstract]:[objective] to provide basic data for indoor air quality of 15 kindergartens in Yinchuan by detecting carbon monoxide (CO), volatile organic compounds (VOCs), formaldehyde (HCHO), carbon dioxide (CO _ 2) and the total number of bacteria in indoor air of 15 kindergartens in Yinchuan city. [methods] from April to June 2014, 45 classrooms of 15 kindergartens in a district of Yinchuan were selected by random sampling. Using GXH-3010 / 3011 portable infrared CO _ (2) CO _ (2) instrument, systems Inc. Volatile organic compounds (VOC) detector, the contents of COCO2CO2 / VOC _ (sHCHO) in indoor air of kindergartens were measured, and the total number of bacteria in indoor air of kindergartens was determined by Koch sedimentation method. The test data were evaluated according to GB / T 18883-2002 Indoor Air quality Standard. [results] the maximum value of CO _ 2 in 45 classrooms of 15 kindergartens in Yinchuan City was 0.122, which was 1.22 times that of GB / T 18883-2002 (0.1%) and 0.107 mg / m ~ (3), and 1.07 times of the national standard (0.1 mg/m3). The maximum value of CO was 1.000 mg/m3 (P < 0.05). The maximum value of 0.125 mg/m3 (national standard 0. 6 mg/m3) and the maximum value of 7. 4 cfu/ dish (national standard 45 cfu/ dish) were obtained by national standard 1. 0 mg/m3. The content of indoor VOCs in public kindergartens [M (P25P75)] was 0.016 (0.008 / 0.044) mg / m ~ (3), which was significantly different from that of private kindergartens [0.003 (0.000 ~ 0.007) mg/m3] (P0.05). [conclusion] the indoor air quality of some kindergartens in Yinchuan City is good, but the content of HCHOO _ 2 in very few kindergartens exceeds the standard, so it should be paid attention to and comprehensive control measures should be taken.
【作者单位】：宁夏医科大学公共卫生学院劳动卫生与环境卫生学系;银川市疾病预防控制中心公共卫生科;
【分类号】：R175

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