There have been studies performed that document issues with portable classrooms and it is important that the school district specify design, commissioning and maintenance to make these portable classrooms safe.
I checked the PAUSD web site but could not find any references to this issue. There are studies on the health issues (one is referenced below) and the US EPA has prepared sample specs and information on commissioning, operations and maintenance.
Does anyone know if this issue is being addressed for the portable classrooms on the way or in the long term facilities master plan?
The US EPA has prepared guidelines for specs: Web Link
California Air Resources Board Study, "ENVIRONMENTAL HEALTH CONDITIONS
in CALIFORNIA’S PORTABLE CLASSROOMS", Nov 2004