Environmental risks assessment and preventive conservation strategy for the Pórtico de la Gloria, Santiago de Compostela Cathedral

Author(s):  
F Becherini ◽  
A Bernardi ◽  
A Vivarelli ◽  
L Pockele ◽  
S de Grandi ◽  
...  
2019 ◽  
Vol 46 (2) ◽  
pp. 1-33
Author(s):  
A. Taha Aya ◽  
A. Kishar Esam ◽  
A. A. Sherif Abd El-Hamid

Author(s):  
Andrejs Radionovs ◽  
Oleg Uzhga-Rebrov

Being able to evaluate risks is an important task in many areas of human activity: economics, ecology, etc. Usually, environmental risk assessment is carried out on the basis of multiple and sometimes conflicting factors. Using multiple criteria decision-making (MCDM) methodology is one of the possible ways to solve the problem. Methodologies of analytic hierarchy process (AHP) are the most commonly used MCDM methods, which combine subjective and personal preferences in risk assessment process. However, AHP involves human subjectivity, which introduces vagueness type of uncertainty and requires the usage of decision making under those uncertainties. In this paper it was considered to deal with uncertainty by using the fuzzy-based techniques. However, nowadays there exist multiple Fuzzy AHP methodologies developed by different authors. In this paper, these Fuzzy AHP methodologies will be compared, and the most appropriate Fuzzy AHP methodology for the application in case of environmental risks assessment will be offered on the basis of this comparison.


2021 ◽  
Author(s):  
Karen Barbosa ◽  
Teresa Ferreira ◽  
Patrícia Moreira ◽  
Eduarda Vieira

Exposure to an atmosphere rich in volatile pollutants can endanger collections in museums, galleries, libraries or archives. Monitoring volatile pollutants in museum microclimates remains an unusual practice in most institutions. Volatile organic compounds (VOCs) can be released by many sources, including the artefacts’ materials themselves. The presence of pollutants in an enclosed space with poor ventilation, adding to high temperature and relative humidity levels or significant fluctuations, may increase the risk of damage for the more susceptible materials. The tendency observed in museums to enclose artefacts in vitrines or boxes may contribute to the formation of microclimates with high VOCs concentration. Based on the studies developed in the last decades, this work intends to draw attention to the risks associated with gaseous pollutants in museum environment and outline some recommendations that encourage cultural heritage institutions to implement a pollutant monitoring plan associated with risk prevention.


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