Indoor and outdoor air quality should be monitored:

Monitoring indoor and outdoor air quality throughout the construction project is essential for several reasons. Firstly, construction sites often release dust, fumes, and other airborne pollutants that can adversely affect workers’ health and the environment. Consistent monitoring ensures that any air quality issues are identified and addressed promptly, reducing potential risks to both workers and future occupants of the building.

Moreover, regulations and building codes often require ongoing checks to ensure compliance with health and safety standards. Continuous monitoring allows contractors to implement necessary mitigation strategies at every phase, rather than addressing air quality issues only at specific points in time. This proactive approach not only promotes a safer working environment but also contributes to the overall success of the project and helps in maintaining positive relationships with regulatory bodies and the community.

In contrast, monitoring only at the final stages, at the contractor's discretion, or solely during the design phase would leave significant gaps that could lead to health hazards and regulatory non-compliance during the construction process. Thus, thorough air quality monitoring throughout the entire project is the most comprehensive and responsible approach.