Laboratoire Interuniversitaire des Systèmes Atmosphériques, LISA, UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, 61, av du Général de Gaulle, 94010, Créteil Cedex, France.
Laboratoire Chrono-environnement UMR6249, CNRS-Université de Bourgogne-Franche-Comté, 16 Route de Gray, 25000, Besançon, France.
Environ Sci Pollut Res Int. 2018 Aug;25(24):23973-23985. doi: 10.1007/s11356-018-2433-0. Epub 2018 Jun 8.
An experimental chamber (CIME2) has been specially designed to simulate wet atmospheric deposition on limestones used in Paris cultural heritage. This instrument is a complementary tool to CIME, a previously developed chamber dedicated to the simulation of dry atmospheric deposition on monuments and artifacts. The aim of this paper is to describe CIME2 and characterize the wet deposits produced inside it. Mist (fog), drizzle, and rainfall are differentiated in order to document their ability to saturate the limestones most currently used in Paris monuments: The Saint-Maximin's limestone, the Liais of Saint-Maximin, and the Chauvigny's limestone are tested. The comparison between normalized and environmental petrophysical data shows that in the wet deposition simulations, limestones are not systematically water-saturated. Moreover, the realistic experimental conditions chosen favor a more rapid evaporation of the stone water. The quantification of the non-saturation state is a first step that has to be taken into account to improve the geochemical models used to predict the alteration.
一个实验腔（CIME2）被专门设计用来模拟用于巴黎文化遗产的石灰岩上的湿大气沉降。该仪器是 CIME 的补充工具，CIME 是一种以前开发的用于模拟纪念碑和文物上干大气沉降的腔室。本文的目的是描述 CIME2 并描述其内部产生的湿沉积物。雾（雾）、毛毛雨和降雨被区分开来，以记录它们使目前在巴黎纪念碑中使用的最石灰岩饱和的能力：测试圣马克西米安石灰岩、圣马克西米安的利亚斯石灰岩和肖维尼石灰岩。归一化和环境岩石物理数据的比较表明，在湿沉积模拟中，石灰岩并不总是被水饱和。此外，选择的现实实验条件有利于石头水更快蒸发。非饱和状态的量化是必须考虑的第一步，以改进用于预测蚀变的地球化学模型。
