Core Mission

  • The CXC can supply passive sampling devices (PSD) as stationary monitors or as wristbands/dog-tags (personal exposure monitors).
  • The CXC will provide analytical services for sample PSDextracts, thereby enabling EHS CC members to measure concentrations of environmental toxins in personal exposures, air, water, sediments, and soils.


Core Capabilities

  • The PSDs will capture volatile and semi-volatile, semi-polar and non-polar (12) organic chemicals such as polycyclic aromatic hydrocarbons (PAHs), and oxygenated PAHs (OPAHs) (13) , phthalates (14), pesticides (15), flame retardants (16), and other industrial compounds simultaneously (17). ​
  • The PSDs consist of hydrophobic, lipophilic polymer membranes made from low-density polyethylene (LPDE) or polydimethylsiloxane (silicone) (1, 2). ​
  • EHS CC members will conduct targeted studies in which they measure the concentrations of specific chemicals and discovery studies in which they detect a wide range of chemicals in an individual’s exposures, air, water, or soil without preconceptions.
  • The CXC Can Extract and Analyze a Broad Range of Chemical Mixtures at Low Cost: more than 1,500 chemicals from a single sample. ​
  • PSDs Selectively Capture Bioavailable Contaminants: ​
  • The CXC Can Calculate Bioavailable Concentrations of Chemicals:​
  • PSDs Make Time-Integrated Measurements: ​
  • Concentrations of Chemicals in PSDs Remain Stable During Transport: ​
  • PSDs Configured as Wristbands Measure Personal Exposure to Environmental Chemicals:​
  • Wristbands Offer Compelling Advantages Over Active Sampling Devices:

Core Interactions, Access, and Costs

  • Investigators may initiate projects with the CXC through our web page and/or through the EHSC pilot program.