摘要
南京市麒麟镇麒麟石刻是重要文物遗迹六朝石刻之一,其表面风化严重。探讨了麒麟石刻的风化原因,并利用X射线荧光光谱、X射线衍射和热重分析等手段对其外表面层、断面层和内部新鲜岩石作了测试。结果表明,麒麟石刻属于石灰岩,主要由方解石和石英组成;在长期的风化作用下,麒麟石刻的外表面层、断面层和内部新鲜岩石的化学成分有明显差异,其外表面层和断面层加入了环境中某些污染成分。对麒麟石刻附近的环境空气进行了监测,并利用电感耦合等离子光谱和离子色谱分析了空气中TSP的水溶性元素和雨水中主要化学物质和元素。结果显示,NO2和TSP浓度均超过《环境空气质量标准》(GB3095—1996)一级标准,雨水pH均值为4.7,麒麟石刻附近道路扬尘严重。
Qilinshi in Qilin Town,Nanjing,China,are carved stones of six dynasties which are one of the cultural heritage relies of national importance. The surface weathering problem of the carved stones is very serious. In order to investigate the weathering of Qilin carved stones, the exterior surface, the cross-section of carved stones, and the interior of carved stones are analyzed by XRD,XRF and TGA. The analytical results indicate that the composition of carved stones are of limestone, and calcite, quartz are the main component of carved stones. Under the long-term ex- posure and weathering, the exterior surface and the cross section of carved stones have different characters compared with the interior of carved stones. The data suggest that air pollutants could be combined into the crusts. SO2 and NO2 acquired from one monitoring station near the inscriptions were analyzed and the water-soluble inorganic elements of TSP and inorganic elements in rainwater were also analyzed with ICP and IC. The result indicates that the concentration of NO2 and TSP of air in Nanjing has exceeded air quality standards （GB 3095--1996）, the pH of rain water is 4.7, and dusting from construction near the carved stones is serious.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2008年第12期36-39,49,共5页
Environmental Pollution & Control
基金
江苏省社会发展项目资助课题(No.BS2006050)
关键词
大气污染
南京市
麒麟石刻
风化
air pollution
Nanjing
Qilin carved stone
weathering
