Analysis of the practical effectiveness of respiratory protection programs in preventing over-exposure to respirable crystalline silica in tunnel construction
The findings highlight organisational and individual factors that lead to a gap between theoretical performance and practical effectiveness of RPE programs. The reasons underlying these deficiencies, including why RPE was not worn, not correctly used, or why lower-grade protection was issued, remain unclear. Providing workers with higher levels of protection, such as powered air purifying respirators (PAPRs), would likely mitigate many of these challenges, which supports the growing shift toward PAPR adoption in the tunnelling sector.