Title: CLU-IN Field Analytic Technologies Section on Membrane Interface Probes (MIPs) 
Resource Type: web links 
Producers or distributor US EPA 
Author / Producer Type: Agency, regulator or other governmental or inter-governmental body 
Web link for product information: http://clu-in.org/char/technologies/mip.cfm  
EUGRIS Keyword(s): Contaminated land-->Site investigation-->Methods
Short description: A membrane interface probe (MIP) is a semi-quantitative, field-screening device that can detect volatile organic compounds (VOCs) in soil and sediment. It is used in conjunction with a direct push platform (DPP), such as a cone penetrometer testing rig (CPT) or a rig that uses a hydraulic or pneumatic hammer to drive the MIP to the depth of interest to collect samples of vaporized compounds. The probe captures the vapor sample, and a carrier gas transports the sample to the surface for analysis by a variety of field or laboratory analytical methods. Additional sensors may be added to the probe to facilitate soil logging and identify contaminant concentrations. The results produced by a MIP at any location are relative and subject to analytic verification. 
Link to Organisation(s): EPA Environmental Protection Agency
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 10/12/2007

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