作　　者： ; ;

机构地区： 湖南大学土木工程学院

出　　处： 《建筑热能通风空调》 2005年第2期15-18,53,共5页

摘　　要： 本文对长沙市某大学校园内三栋教学楼教室内外的空气品质进行了实地测量调查。在室内和室外同时对空气温度(Ta)、相对湿度(RH)、空气流速(V)以及二氧化碳(CO2)、一氧化碳(CO)、二氧化硫(SO2)、二氧化氮(NO2)、可吸入颗粒物(PM10)和甲醛(HCHO)等的浓度参数进行了测量。实地测量时间为2004年3月和4月两个月。测量结果显示CO2和PM10为典型大学教室中污染最为严重的两项指标:CO2的最高和平均浓度分别高达0.322%和0.1997%,而中国国家标准为0.100%。造成如此严重污染的主要原因是通风不足以及教室内人员密度过大;教室内PM10的最大和平均浓度分别为0.16mg/m3和0.13mg/m3,通过实验分析得出在室内人员密度不是非常大的情况下,室内PM10主要来自室外环境;而人员密度大到一定程度时,室内人员活动与PM10浓度则显示出了一定的正相关性。本文所测的其他污染指标均符合同家标准要求。并且在结论中也提出了一些解决问题的建议。 This paper made a field Indoor Air Quality (IAQ) survey in three classrooms, which were respectively in three different teaching buildings on a campus in Changsha city. Sampling parameters, which were air temperature, relative humidity, air velocity, carbon dioxide (CO2), carbon monoxide (CO), sulfurdioxide (SO2), nitrogen dioxide (NO2), respirable particles (PM10), and formaldehyde (HCHO), were surveyed simultaneously indoor and outdoor. The period of field survey was from March to April in 2004. The survey results showed CO2 and PM10 were the most two serious polluted contaminations: the max and average concentrations of CO2 reached 0.322% and 0.1997% respectively, while the national benchmark was 0.100%. The main reasons caused such high CO2 levels were inadequate ventilation and high occupants density; and the max and average PM10 concentrations in classrooms were 0.16 mg/m3 and 0.13 mg/m3, according to the experiment, under normal occupants density condition, PM10 in the classrooms were mainly came from outdoor environment; while if the density reached certain high level, there are some evidence showing the relationship between occupants' activity and indoor PM10 concentration. Other parameters surveyed in this paper were all under the national action level. In the end of this paper, some suggestions to solve these problems were listed.

关 键 词： 室内外 长沙市 品质调查 可吸入颗粒物 二氧化硫 年 月 中国国家标准 人员密度 浓度 平均浓度 实地测量 空气品质 大学校园 空气温度 相对湿度 二氧化碳 空气流速 一氧化碳 二氧化氮 浓度参数 测量时间

领　　域： [建筑科学] [环境科学与工程]