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Assessment of mold concentrations in Singapore shopping centers using mold-specific quantitative PCR (MSQPCR)
Jennifer Yap1, Zhen Ann Toh, Vivien Goh
1Environmental Health Institute, National Environment Agency (NEA), Singapore, Singapore.
Abstract:
Molds can pose a human health threat and may amplify in buildings in humid climates. The objective of this study was to evaluate the mold growth in Singapore shopping centers based on the collection of 40 dust samples from 15 shopping centers, including one with a history of water damage. The dust was analyzed by a DNA-based technology called mold-specific quantitative PCR (MSQPCR). In a water-damaged shopping center, most of the 26 water-damage indicator species were detected at some concentration and many were much more abundant than the average in the shopping centers. MSQPCR is a useful method for quantifying indoor molds in tropical climates.
Insights
Mold growth in Singapore shopping centers was assessed using mold-specific quantitative PCR (MSQPCR). A water-damaged site showed significantly higher mold levels, indicating MSQPCR
Area of Science:
- Environmental Science
- Microbiology
- Public Health
Background:
- Molds represent a significant human health risk.
- Humid climates facilitate mold amplification in buildings.
Purpose of the Study:
- To assess and quantify mold growth in Singapore shopping centers.
- To evaluate the effectiveness of mold-specific quantitative PCR (MSQPCR) in tropical indoor environments.
Main Methods:
- Collection of 40 dust samples from 15 shopping centers in Singapore.
- Analysis of dust samples using mold-specific quantitative PCR (MSQPCR).
- Inclusion of one shopping center with a history of water damage for comparative analysis.
Main Results:
- Mold-specific quantitative PCR (MSQPCR) successfully quantified indoor molds.
- In the water-damaged shopping center, 26 water-damage indicator species were detected.
- Detected mold species were significantly more abundant in the water-damaged site compared to average levels.
Conclusions:
- MSQPCR is a valuable tool for quantifying indoor mold contamination.
- Water-damaged buildings in tropical climates can harbor high concentrations of diverse mold species.
- Findings highlight the importance of monitoring and controlling mold growth in commercial buildings in humid regions.
