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为评价汉阳陵帝陵外藏坑保护展示厅内文物保存大气环境的历史演变,本研究于2013-2014年度冬夏两季,对展示厅玻璃护围内(遗址区)、外(游客通道)的大气环境进行了监测与采样分析。结果显示,玻璃护围内存在温、湿度的季节性波动;遗址区PM_(2.5)质量浓度的夏季均值为18.414.6μg·m~(-3),冬季均值为28.0±18.9μg·m~(-3),遗址区与游客通道的I/O比值为0.62±0.23。仅在室外重度灰霾污染后,遗址区浓度高于游客通道。遗址区内气溶胶偏酸性,冬季酸性强于夏季。PM2.5各化学组成中有机物所占比例最高(42%~51%),二次无机离子(SO_4~(2-)与NO_3、NH_4~+之和)夏季占PM_(2.5)的37%,冬季占23%。遗址区内的文物依然面临微环境波动、气溶胶酸性和水溶性组分的物理与化学风化威胁。
In order to evaluate the historical evolution of the preservation of the atmospheric environment of the cultural relics preservation hall in the Hanyang Emperor Mausoleum, this study, in the winter and summer seasons of 2013-2014, Atmospheric environment was monitored and sampled for analysis. The results showed that there was a seasonal fluctuation of temperature and humidity in the glass enclosure. The average PM_ (2.5) mass concentration in the site was 18.414.6 μg · m -3 in summer and 28.0 ± 18.9 μg · m ~ (-2) in winter -3). The ratio of I / O to the tourist area and tourists’ passageway is 0.62 ± 0.23. Only in the outdoor heavy haze pollution, the site concentration higher than the tourist access. Aerosol acidic sites in the region, acidity in winter stronger than in summer. The proportion of organic matter in PM2.5 was the highest (42% -51%), and that of secondary inorganic ions (sum of SO4- (2-) and NO3, NH4 +) accounted for 37% of PM2.5 in summer. Winter accounted for 23%. Cultural relics in the site remain vulnerable to micro-environmental fluctuations, physical and chemical weathering of aerosols and water-soluble components.