Page 48 - SAMRC AnnualReport 2025-26

As part of the Thrive by Five Index, EHRU assessed interdisciplinary collaboration. These activities
environmental risks in early learning programmes enhanced both the visibility and impact of the
(ELPs) in Gauteng, focusing on children’s exposure Unit’s work.
to toxic metals and heat. Environmental sampling
detected lead in all dust samples, frequent arsenic Community engagement remains central to
contamination, and lower levels of cadmium. EHRU’s research approach. The Unit worked closely
Spatial analysis identified localised hotspots of with community members, caregivers, and local
lead and arsenic, highlighting priority areas for stakeholders on projects focused on early learning
targeted interventions. Classroom monitoring environments and mining-affected communities.
also revealed significant heat exposure during This included communicating findings in accessible
the summer months, underscoring the need for formats, raising awareness of environmental health
routine environmental monitoring, heat mitigation risks, and supporting practical actions to reduce
measures, and staff training to improve the safety exposure. Through these efforts, EHRU continues
of ELPs. to promote inclusive, participatory research that
empowers communities and contributes to more
At a broader systems level, EHRU implemented a responsive and equitable health systems.
World Bank-supported project addressing health
risks associated with extreme heat. By analysing AI in Medical and Health Research
historical temperature and mortality data, the project EHRU, together with the Biomedical Research
contributed to the development of evidence-based and Innovation Platform (BRIP) and the Genomics
heat-health thresholds and informed the design of Platform, co-leads the SAMRC Wastewater
a provincial Heat Early Warning System. The work Surveillance and Research Programme (WSARP).
also assessed population vulnerabilities and health Through wastewater surveillance, the programme
system preparedness, supporting the integration monitors sewage for biological and chemical
of heat-risk management into climate adaptation
planning.

EHRU also conducted research on uranium
exposure among children living near gold mine
tailings facilities in Johannesburg. The study found
elevated uranium levels in children’s hair samples
compared to those from non-mining areas, with
younger children most affected. These findings
highlight the need for strengthened environmental
monitoring, community engagement, and targeted
interventions to protect at-risk populations.

Building Capacity Through
Training, Mentorship, and Support

EHRU remains committed to strengthening
environmental health research capacity, with a
focus on equity and inclusion. During the reporting
period, the Unit supported early-career researchers
through mentorship and supervision, contributing
to the development of the next generation of
environmental health scientists in South Africa.
Capacity building also extended beyond academia
through workshops, stakeholder engagements,
and conference participation, where staff shared
research findings and strengthened skills in
science communication, policy engagement, and

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