Field study of treatment conditions for tsunami-damaged objects

Rikuzentakata City Museum (formerly Oide Elementary School)
Inspecting the water quality in tubs used for desalination of paper documents

 Many thousands of cultural properties were severely damaged by the tsunami that occurred following the 2011 Off the Pacific Coast of Tohoku Earthquake. Although six years have passed from the disaster, treatment of the tsunami-damaged cultural properties continues in the disaster-stricken areas. In order to investigate the occurrence of volatile organic compounds, which are harmful to workers’ health, we made a contract with Rikuzentakata City and conducted a survey on the treatment methods for the tsunami-damaged cultural properties and on the working environment in the facility where treatments are conducted.
 We visited the treatment facility in the Rikuzentakata City Museum, which is located in a temporarily closed school facility in Iwate Prefecture, for on-site research in August from the 25th to 26th. Damaged folk cultural properties are bathed in water for desalination in the school yard. On the first floor, paper documents are treated for desalination in a teachers’ room and cleaned natural history specimens are classified in a classroom. Treated objects are stored separately according to each type of cultural property in the classrooms on the second floor or a temporary installed storage facility in the gymnasium.
 We were able to obtain a lot of valuable data about the air quality in the facility and water quality during treatment, helped by the cooperation of the museum staff. Temperature and humidity in the facility are continuously measured even now. By the end of this fiscal year, we plan to propose improvements after collecting data.

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