ARSENIC IN GROUND WATER:
Part 1: Arsenic Geochemistry: Demystifying the Complexities and “Conventional Wisdom”
This 90-minute webinar addresses arsenic geochemistry, occurrence and mobility in ground water. Part 1 of this 2-part series focuses on biogeochemical conditions that cause solid-phase arsenic to become dissolved or mobile in groundwater systems. Part 1 of this 2-part series reinforces key elements of arsenic geochemistry, presenting background information sufficient to demistify common, but complex, mobility and transport issues. This approach demystifies topics we hold as “conventional wisdom”.
Despite recent research on this subject, the complex literature on the toxicity and mobility of arsenic in groundwater is not well understood. For example, arsenic-rich sulfide minerals can release soluble arsenic to groundwater under oxidizing conditions. In contrast, arsenic sorbed to, or incorporated into, the mineral structure of metal-(hydr)oxide minerals are a potential source of arsenic to groundwater in reducing environments. Geochemical conditions may be temporally and spatially variable within a hydrogeologic system, impacting arsenic mobility and affecting the distribution of arsenic in groundwater and in wells.
This series of webinars is designed for professionals working in the fields of environmental consulting, site remediation, groundwater investigations, water quality issues, and brown fields developments. Regulators, consultants, engineers and hydrogeologists will appreciate the real-world examples and complex conditions that are characterized and explained with interpretations of familiar types of data and basic geochemical principles.
TOPICS FOR PART ONE:
- Sources and distribution of naturally-occurring arsenic in the environment
- Basic Arsenic geochemistry
- Mechanisms of arsenic release in groundwater
YOU WILL BENEFIT FROM THIS TWO-PART WEBINAR SERIES BY:
- Discovering important but sometimes hidden naturally-occurring and man-made sources of arsenic.
- Learning to look for common arsenic-bearing minerals, rocks and sediment considering spatial variability of arsenic in geologic materials.
- Learn basic Arsenic geochemistry and some advanced geochemical concepts.
- Understanding arsenic speciation and organic and inorganic forms.
- Learn how microbiological transformations of arsenic play an important role in Arsenic occurrence.
- Gain insight from comprehensive, real-life examples illustrating geochemistry of arsenic release and mobility.
| Fee: |
249.00 USD Per Computer Site (unlimited participants per site)
when you register for both parts of the two-part series*.
299.00 USD Per Computer Site (unlimited participants per site).
|
| Instructors: |
Madeline Gotkowitz, PG. and Madeline Schreiber, PhD. |
Pay one site registration fee and an unlimited number of participants from your organization can attend at that site.
Participants will receive a handout referencing the webinar topics and discussion.
Earn 1.5 Professional Development Hours (1.5 PDH) for this webinar.
A Record of Attendance Form is included free with each webinar for your record keeping and individual PDH verification. We ask your on-site coordinator to return the completed and signed copy of the Form to us following the webinar for (1) maintaining a separate copy as a service to attendees and (2) forwarding to NIU confirming attendance for those who order certificates.
Attendees may also order an official a Course Completion Certificate from Northern Illinois University for a small administrative fee. The Certificate is optional and may be ordered separately following the webinar to confirm your attendance and showcase the certificate on your office wall. Instructions for ordering certificates are given during the webinar.
* This webinar is eligible for the ’BUY THREE, GET THREE’ discount; however the two-part webinar series discount shown above cannot be combined with it.
Instructor Bios
Madeline Gotkowitz
Hydrogeologist, Wisconsin Geological and Natural History Survey
Professor, University of Wisconsin – Extension
Madeline Gotkowitz is a research scientist at the Wisconsin Geological and Natural History Survey, where her work focuses on regional groundwater flow and transport modeling, subsurface fate and transport of human enteric viruses, and flow and transport across aquitards. Gotkowitz’s field-based investigations of arsenic in groundwater address conditions in surficial and bedrock aquifers, and the affect of well disinfection on arsenic release. Gotkowitz holds a B.A. in Environmental Sciences from Smith College and an M.S. in Hydrology from New Mexico Institute of Mining and Technology.
Madeline Schreiber
Associate Professor, Geosciences
Virginia Tech University
Madeline Schreiber’s research in chemical hydrogeology involves analysis and quantification of chemical and biological processes that impact contaminant transport. Over the past 10 years, Schreiber and her students have focused on biotransformation of both organic and inorganic species by subsurface microorganisms, adsorption of arsenic species (organic and inorganic) to subsurface materials, and release of trace elements from minerals during oxidative and reductive dissolution. Her work has been funded by the National Science Foundation, the U.S. Department of Agriculture, the National Institutes for Water Research, and private foundations. Schreiber received PhD and MS degrees from the University of Wisconsin-Madison and a BS degree from Yale University.
Questions? Email us at service@midwestgeo.com or call 763.607.0092
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