Need for Perimeter Air Monitoring (PAM) Potential for Contaminated - PowerPoint PPT Presentation

Need for Perimeter Air Monitoring (PAM) Potential for Contaminated Vapors and  Particulates to Drift into Populated Areas Cases Where Contaminated Dust Found in  Adjacent Buildings Increasing Citizen Concern about Adverse  Health Effects of Remedial Actions

History of PAM NJDEP required PID/FID Readings and/or Particulate  Monitoring at the Perimeter of Selected Contaminated Sites During Remedial Activities Calculation of Site-Specific Action Levels Varied  Between Sites PAM Guidance to Provide Consistency in Approach to  Monitoring and Action Levels

Concerns Raised During PAM Guidance Process Appropriateness of Time Frames Addressed  by PAM Guidance Toxicity Basis for Action Levels  Real-Time Measurement for VOCs and  Particulates

Concerns Raised During PAM Guidance Process Elevated Background VOC and Particulate  Concentrations Complications of Remedial Actions associated  with Low PAM Action Levels Visible Dust and Best Management Practices 

Concerns Raised During PAM Guidance Process Dispersion Factors for Receptors not  Directly Adjacent to Remedial Activities Special Concerns: Asbestos and PCBs 