Providing professional consulting and expert testimony in the areas of:

Indoor Air Quality

Featured Articles

Read our latest Risk Factor Newsletter:

5/23/2019 - Machine Guarding and Safety

How do you establish a process for protection from the potential hazards associated with the operation of machinery?

LEED's Air Quality Testing

Providing acceptable indoor air quality for occupants and workers during and after a construction project requires significant planning and understanding of potential issues. The process begins with the identification of potential issues prior to and before any construction starts in order to develop strategies that will prove to be successful. These strategies may include:

  • HVAC Protection
  • Source Control
  • Pathway Interruption
  • Housekeeping
  • Scheduling

1Source Safety and Health can provide assistance in the development of the following plans to ensure acceptable indoor air quality whether or not you are requesting EQ Credits for LEED's certification.

  • Construction IAQ Management Plans during construction
  • Construction IAQ Management Plans before occupancy

Our staff of certified industrial hygienists (CIH) can direct and conduct the required air quality testing to demonstrate and document that the maximum concentrations of the following contaminant are not exceeded. The number of samples to be collected varies with square footage of the space as well as the number of air handlers servicing an area.

Contaminant Maximum Concentration


27 parts per billion


0.075 parts per million
Particulates (PM10) 50 micrograms per cubic meter of air
Particulates (PM2.5) 15 micrograms per cubic meter of air
Total Volatile Organic Compounds 500 micrograms per cubic meter
Carbon Monoxide 9 parts per million (ppm), or no greater than 2 ppm above outdoors levels
Target Volatile Organic Compounds 35 Specific Compounds

1Source Safety and Health also provides on-site Construction Safety Management to clients during construction to monitor day-to-day activities to reduce injuries, illness and fatalities.

Need more information, or a proposal? Please click on Need a Quote, or contact Chris Schneider, CIH at 610.524.5525, Ext. 14 or email.