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Heileen Hsu-Kim

Professor in the Department of Civil and Environmental Engineering
Civil and Environmental Engineering
Box 90287, Durham, NC 27708-0287
118A Hudson Hall, Box 90287, Durham, NC 27708

Outreach & Engaged Scholarship


Bass Connections Team Leader - Duke University Central Campus Geothermal Test · 2023 - 2024 Projects & Field Work
Bass Connections Team Leader - Impacts of Artisanal Gold Mining on Humans and the Environment · 2023 - 2024 Projects & Field Work flag Ecuador
Bass Connections Team Leader - Field Testing a Mercury Capture System for Artisanal Gold Mining · 2021 - 2022 Projects & Field Work flag Peru Energy & Environment located in Peru & Colombia
Bass Connections Team Leader - Mapping Legacy Lead in Urban Soils to Help Improve Children's Health · 2019 - 2020 Projects & Field Work flag North Carolina Global Health
Bass Connections Faculty Team Member - Environmental Epidemiology in Latin America: Impacts of Artisanal Gold Mining in the Peruvian Amazon · 2018 - 2019 Projects & Field Work flag Peru

Primary Theme: Energy & Environment

In 2013, Bass Connections helped launch one of the largest and most comprehensive studies of mercury exposure due to artisanal and small-scale gold mining (ASGM) anywhere on the planet, in Madre de Dios, Peru. ASGM is the largest source of global mercury (Hg) pollution and the leading cause of deforestation in the Peruvian Amazon. ASGM emits large amounts of Hg directly into atmospheric, terrestrial and aquatic ecosystems via burning of mercury-gold amalgams and disposal of mercury-laden tailings. Hg is a potent neurotoxin that impacts human and wildlife health. When Hg enters aquatic systems, it is transported downstream, and the concentration of Hg near mining and downstream should be higher than in upstream areas. However, Duke research in Madre de Dios suggests that average hair Hg concentrations (a standard biomarker of total Hg exposure) in communities more than 150 km upstream of ASGM are 115% that of mining communities and 145% that of downstream communities. These high concentrations upstream of ASGM are also apparent in top predators, as one study has shown elevated mercury concentrations in giant otters (a protected species) within Manu National Park in Peru. There are several viable hypotheses that could explain why human and wildlife mercury levels are high in a region that is otherwise physically, socially and economically disconnected from ASGM. These include fish migration, atmospheric deposition and land use/land cover change. Deforestation patterns due to ASGM, oil exploration and agricultural expansion may underlie many of these hypotheses, and, if true, forest conservation near ASGM could be crucial to protecting human and wildlife populations from high mercury concentrations and the resultant toxic impacts. Unfortunately, little is known about the influence of forest cover on mercury cycling.

Bass Connections Team Leader - Duke University Central Campus Geothermal Test · 2023 - 2024 Projects & Field Work
Bass Connections Team Leader - Impacts of Artisanal Gold Mining on Humans and the Environment · 2023 - 2024 Projects & Field Work flag Ecuador
Bass Connections Team Leader - Field Testing a Mercury Capture System for Artisanal Gold Mining · 2021 - 2022 Projects & Field Work flag Peru Energy & Environment located in Peru & Colombia
Bass Connections Team Leader - Mapping Legacy Lead in Urban Soils to Help Improve Children's Health · 2019 - 2020 Projects & Field Work flag North Carolina Global Health
Bass Connections Faculty Team Member - Environmental Epidemiology in Latin America: Impacts of Artisanal Gold Mining in the Peruvian Amazon · 2018 - 2019 Projects & Field Work flag Peru

Primary Theme: Energy & Environment

In 2013, Bass Connections helped launch one of the largest and most comprehensive studies of mercury exposure due to artisanal and small-scale gold mining (ASGM) anywhere on the planet, in Madre de Dios, Peru. ASGM is the largest source of global mercury (Hg) pollution and the leading cause of deforestation in the Peruvian Amazon. ASGM emits large amounts of Hg directly into atmospheric, terrestrial and aquatic ecosystems via burning of mercury-gold amalgams and disposal of mercury-laden tailings. Hg is a potent neurotoxin that impacts human and wildlife health. When Hg enters aquatic systems, it is transported downstream, and the concentration of Hg near mining and downstream should be higher than in upstream areas. However, Duke research in Madre de Dios suggests that average hair Hg concentrations (a standard biomarker of total Hg exposure) in communities more than 150 km upstream of ASGM are 115% that of mining communities and 145% that of downstream communities. These high concentrations upstream of ASGM are also apparent in top predators, as one study has shown elevated mercury concentrations in giant otters (a protected species) within Manu National Park in Peru. There are several viable hypotheses that could explain why human and wildlife mercury levels are high in a region that is otherwise physically, socially and economically disconnected from ASGM. These include fish migration, atmospheric deposition and land use/land cover change. Deforestation patterns due to ASGM, oil exploration and agricultural expansion may underlie many of these hypotheses, and, if true, forest conservation near ASGM could be crucial to protecting human and wildlife populations from high mercury concentrations and the resultant toxic impacts. Unfortunately, little is known about the influence of forest cover on mercury cycling.

Bass Connections Faculty Team Member - Environmental Epidemiology in Latin America: Impact of an Oil Spill in the Peruvian Amazon · August 2017 - May 2018 Projects & Field Work flag Peru
Bass Connections Faculty Team Member - Environmental Epidemiology in Latin America: Research and Policy Development to Reduce Chemical Exposures · August 2016 - May 2017 Projects & Field Work flag United States of America
Bass Connections Faculty Team Member - Environmental Epidemiology Research Training in the Peruvian Amazon · August 2013 - May 2014 Projects & Field Work flag Peru