博物馆空调系统细菌污染检测分析
Detection and analysis on bacterial contamination in air conditioning system of museum
摘要：
博物馆名贵文物展柜内的空气环境通常采用恒温恒湿空调系统进行控制。空调系统细菌污染是文物长期保存的一大隐患。通过采集、培养、计数及鉴别等手段对空调系统及其末端污染物进行了测试分析。结果表明：机组内积尘平均含量为13.25 g/m2，系统内部细菌平均浓度为525.35 cfu/m3，末端细菌平均浓度为651.35 cfu/m3；优势菌种均为适应能力较强的革兰氏阳性菌；适当温度与较高相对湿度均能加快细菌滋生，相对湿度对细菌浓度的影响程度较大。
Abstract：
The air environment in the precious cultural relics cabins of museums is usually controlled by constant temperature and humidity air conditioning system. Bacterial contamination of air conditioning system is a major hidden danger for long-term preservation of cultural relics. Tests and analyses the pollutants of air conditioning system and its terminals by collecting, training, counting and identification. The results show that the average dust content in the unit is 13.25 g/m2, the average concentration of bacteria inside the system is 525.35 cfu/m3, the terminal mean concentration of bacteria is 651.35 cfu/m3, the dominant species of bacteria are gram positive bacteria which have strong adaptability to the natural environment, appropriate temperature and high humidity can accelerate the growth of bacteria, and the relative humidity has a great influence on the concentration of bacteria.
Keywords:museum, air conditioning system, microbial contamination, bacteria concentration, dust accumulation