Research areas Geographical information systems and hazard management In April 1985, von Braun presented at the 11th Annual Research Symposium at the Hazardous Waste Engineering Research Laboratory. She presented "Demonstration of a Geographic Information System For Hazardous Waste Site Analyses". This topic later became the focus of her 1989 PhD thesis. In her 1989 thesis, she most notably looks at the potential risk of poorly stored
groundwater contamination. Von Braun analyzed sites cleaned by the
Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), and she created cartographic models that looked at the formation of contamination plumes at those sites and how the plumes traveled. She then looked at how the water table formed and how groundwater was managed by looking at well locations. Furthermore, she looked at how these factors contribute to the growth of the human population. The focus of the study was to determine the usefulness of XRF techniques on carpets and the lower limit of detection (LLD) on XRF technologies. To test for this, von Braun and her team created samples of carpet, each treated with a set amount of lead. They then emitted primary X-rays onto the carpet to detect lead by looking at the fluorescent X-rays. The study concluded that the amount of lead detected though XRF was within 2% of the actual amount. The study also concluded that the LLD for XRF was between 108 and 258 Pb/meter squared. Continuing her research, von Braun conducted studies discussing the seasonal variations of lead concentration in residential house dust throughout communities in Northern
Idaho. She was the second author of a 2006 paper on the subject. The focus of the study was to investigate whether residential house dust lead concentrations in non-contaminated or "background" communities are significantly affected by these variations. The findings did not reach a concrete conclusion on the seasonality of lead levels in house dust despite recognizing the dust as a severe danger. Von Braun claims that the ambiguity surrounding this issue comes from the house dust's reliance on a plethora of erratic factors, such as weather, house age, use of leaded paint, tenant habits, and traffic frequency. These variables could be dependent or independent of the season. However, a significant discovery made by Von Braun and other researchers was that young children are the most susceptible to lead exposure and that the most frequent exposure comes from house dust. Von Braun's work on this subject continued into the 2010s, as she contributed to a 2016 paper analyzing techniques to address the
childhood lead poisoning epidemic in
Zamfara, Nigeria, due to gold mining in the region. From 2010 through 2013, mining caused rampant contamination, resulting in the deaths of more than 400 children. Remediation was conducted by modifying U.S.
hazardous waste removal protocols to correspond with local agricultural practices. Through these efforts, more than 27,000 cubic meters of mining waste and contamination were removed from villages and ore processing areas, and the epidemic was brought under reasonable control.
Corporate career In 1984, von Braun and her husband, Ian von Lindern, founded TerraGraphics Environmental Engineering Inc. This firm provided geological and environmental services with a specific focus on waste hazard remediation. In 2012, von Braun and von Lindern founded Terragraphics International Foundation (TIFO) as a non-profit successor to the original company.
Administrative career In 1980, von Braun joined the faculty of the University of Idaho, becoming one of the first women to join their engineering department. In 1993, at the University of Idaho, von Braun founded and directed the Department of Environmental Sciences and Environmental Engineering. , Margrit von Braun is a professor
emerita at the University of Idaho.
Asia In
Karakalpakstan, Uzbekistan, TIFO has partnered with
Doctors Without Borders to address the drying up of the
Aral Sea rivers. TIFO and Doctors Without Borders have used environmental models to assess the best intervention and treatment plans for the region. Since 2012, TIFO has taught a yearly course at the
American University of Armenia for
Master of Public Health (MPH) students. Since 2014, TIFO has monitored
tannins and other pollutants in
Hazaribagh, Bangladesh, and
Kamrangirchar, Bangladesh == Recognition ==