The role of cultural heritage objects in our life cannot be accurately estimated, conservation and protection of cultural heritage objects (CHO) being crucial for the identity and knowing the history of humanity. It is well known that air pollution, including temperature, humidity and radiation, caused by natural or human activity introduce in the atmosphere considerable amounts of gaseous pollutants (NO_2, SO_2, O_3,CH_2O) that can directly or indirectly (formation of acid rain) can influence the lifetime and quality cultural heritage objects. In this study, we present the state of atmospheric pollution and conditions in the last ten years based on models and remote observations performed with space instruments for areas in Romania where a high density of cultural heritage objects is found. This study is the first of its kind performed in Romania. The obtained results are important for the management of future conservation and protection activities for the museum's outdoor artworks and cultural heritage objects.
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