20 Oct: Asbestos - outside of the built environment

Tuesday 20 October, 12pm-1pm

FREE for WasteMINZ members, $59 + GST for non-members 

Asbestos - outside of the built environment

Background

Over the last century, human exposure pathways for asbestos have changed from those associated with direct interaction with the minerals (e.g. mining) to secondary exposure from a variety of asbestos-containing materials, including those linked to para-occupational, domestic and environmental pathways. In this presentation, we will discuss asbestos-related hazards associated with exposure outside of the built environment which includes children's toy sand products and asbestos-contaminated materials found on Auckland's beaches.

In 2025, the discovery of asbestos in children’s toy sand products caused panic, stress and fear amongst the community. Although there is no safe level of asbestos exposure, these products were deemed to be low risk by some due to uncertainty around whether fibres could become airborne during play. We will describe the methods used to investigate the release of fibres from sand during play activities as part of unique scenario-based testing. We will discuss the results and interpretation of these experiments alongside subsequent policy changes to address future risks.

In addition, we discuss findings from around the world on prevalence of asbestos-contaminated materials from buildings on beaches. In particular we will look at the likely sources of this waste stream to a large estuary in the Auckland region. We will share images and results of the samples taken and explain what else is required to establish the true extent of the risk associated with this accidental waste stream.

Presenters:

 Terri-Ann Berry

Dr Terri-Ann Berry (MSc, PhD, CChem, CEnv, FRSC) is an Associate Professor of Environmental Engineering in the School of Future Environments at Auckland University of Technology, New Zealand and Co-Director of the Environmental Innovation Centre. 
Terri-Ann has nearly 30 years’ experience working as a researcher in Environmental Chemistry and Engineering; finding solutions for problems associated with pollution and waste. Her key research interests include managing and mitigating risks associated with asbestos and asbestos contaminated soils and sustainable waste management. She is co-founder and current Chair of the Mesothelioma Support and Asbestos Awareness Trust NZ Charity, which is dedicated to supporting those impacted by asbestos and silica-related disease and raising awareness of the hazards.