Abstract
Mould growth, caused by favourable hygrothermal environment like high relative humidity, proper temperature and other environmental variables, is one of the most severe hazards to soil ruins in high-humidity regions. Nevertheless, the effects of these variables on mould growth under extremely high humidity conditions remain elusive. In our previous research, samples from Wenzhou Qiaolou soil ruin were used to estimate the effects of two factors, ventilation and lighting modes, in unison. Based on that, a subsequent analysis has been conducted to assess mould growth differences with air relative humidity and lighting modes. We found that the extremely stable high-humidity environment (99.9%) had a significantly inhibitory effect on mould growth of damp surface of soil ruins. This paper also gives suggestions on the management of soil ruin exhibition halls in high-humidity regions.
Highlights
3.1 Different Mould growth under different RH and lighting conditions which means that more than 10% mould were evident to naked eye, and remained stable
RH at 95% is far more favourable for mould growth compared with RH at 90%
The Mould Growth Area Ratio (MGAR) and Mould Growth Grade (MGG) in two groups experienced a constant increase in the first month and decreased
Summary
Many investigations had studied the relationship between mould growth and environmental variables, current research are mainly focused on driven factors, such as temperature, relative humidity, substrate and exposure time [1,2]. A growing body of research has shown that proper temperature (0-30°C) and high relative humidity (>75%) stimulate mould growth [3,4]. The scenario on mould growth under extremely high humidity conditions remains elusive. This situation is obvious given that most soil ruins, those in hypogene environments, are exposed to a stable temperature (10–15°C) and extremely high relative humidity [10]
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