Unscrambling Contaminant Mixtures to Determine their Chemical Fingerprints – Webinar

Sign-up to hear Dr. Sandau present on Source Apportionment

Please register for the Webinar: “Unscrambling Contaminant Mixtures to Determine their Chemical Fingerprints” on Apr 26, 2018 2:00 PM MDT.

– 2:00PM-2:05PM Introduction to CMI/Statvis Inc.
– 2:05PM-2:50PM Dr. Court Sandau to present
– 2:50PM-3:00PM Question and Answer Session

Many contaminated sites have mixed plumes or contaminants of concern from multiple potential sources. Examples of mixed plumes could include mixed free phase petroleum plumes (e.g. condensate) or polycyclic aromatic hydrocarbons (PAHs) from crude oil spills mixing with upstream or local anthropogenic sources (storm water runoff) of PAHs in sediments.

There are several advanced statistical techniques that can be used to determine the number and different sources of contaminants present on the site. In addition, there are statistical tools that can also apportion the amount of contaminants in each sample, thereby allowing liability to be distributed according the chemistry of the contaminants and those responsible for those contaminants. Apportionment is important for litigious cases as it allows the calculation of who should pay for what portion of the cleanup.

This presentation will provide a summary of statistical tools used for chemical fingerprinting as well as the use of positive matrix factorization (PMF) in order to provide some guidance on model usage for contaminant apportionment. The models need to be applied conservatively and require chemistry interpretation to elucidate what end members have been identified by the model and if those end members make sense. The models will be applied to a real case study scenario to demonstrate its application.

Lawyers, regulators and environmental professionals involved in spill monitoring and contaminated site liability determination will find this presentation educational in how these statistical models are able to determine sources and amounts of those sources of contaminants on site.

– We will be using GoToWebinar
– You can join our session by using a Mac, PC or a mobile device

Register by entering your name and email address.

After registering, you will receive a confirmation email containing information about joining the webinar.

You can view a slide deck here where a similar topic was covered an Envirotech 2018.

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