What is the new asbestos?
This rhetorical question is often quoted in risk management circles. It refers to the asbestos-related liability and occupational disease cases for which the insurers have paid 100-200 billion euros across many decades. The reasons for these extremely wide-reaching injuries and fatalities and their compensations were due to the extensive use of asbestos materials in buildings and various industries before the health hazard was fully understood. The asbestos fibers cause serious illnesses often decades after the exposure.
Could nanotechnology, which is widely used in everyday consumer products but may have unknown effects, be the ‘next asbestos’? Nanotechnology involves manipulating substances at the atomic and molecular levels to create innovative materials and processes. This not only impacts the development of computers, phones, and devices but also influences equipment that improves health and is placed inside the human body. The challenges arise in assessing and insuring against the practical application risks, similar to other technologies integrating new materials within the human body. If the materials developed would be hazardous, they might cause occupational injuries at the manufacturing sites and product liability claims from the users of the products.
The risks of nanomaterials
The chemical industry, crucial for making and handling nanomaterials, presents potential risks to workers. Industries incorporating nanomaterials in production may encounter class action claims from consumers alleging damages. The transportation of nanomaterials could unintentionally lead to pollution and subsequent claims. Nanoparticles from fertilisers, animal medicine, or pollution might impact the agriculture and food industry, accumulating and increasing hazards for crops, livestock, and humans. Human health may face challenges due to nanoparticle accumulation through the air and food chain.The current evidence is inconclusive, prompting the development of various risk assessment models and frameworks to understand and evaluate the available data on the health effects of nanomaterials. Compared to asbestos, it might be difficult to prove the causal link between a particular nanomaterial and a certain illness.
History shows that technologies once thought of as major advancements can later be seen as highly risky. For example, chlorofluorocarbons made refrigeration, air conditioning, and aerosols possible but consequently harmed the earth’s protective ozone layer. Lead additives improved paint durability but have increased the risk of poisoning for future generations. Asbestos, while providing insulation, caused severe damage to human respiratory systems. Research suggests that specific carbon nanotubes may pose health risks similar to asbestos, though not all nanotubes carry the same level of danger.
The latest candidate for the ”next asbestos” are the PFAS added to If’s Emerging Risk Radar. They are man-made per- and polyfluorinated alcyl substances used in consumer and industrial products, especially for their stain and grease resistance properties since the 1930s. They are very long-lasting and, thus, called forever chemicals. PFAS migrate in the environment and accumulate in human bodies and are suspected of causing various serious illnesses (see our article in Risk Consulting magazine 2/2023). The still evolving research results and rapidly increasing claims around the world for environmental contamination and health issues make PFAS risk unpredictable to industries and insurers.