Plastics as a Human Health Issue
Sian Sutherland, A Plastic Planet
Sian Sutherland delivered perhaps the most provocative and passionate presentation of the day, arguing that discussions about plastics should move beyond waste management and focus much more heavily on human health impacts.
Moving Beyond Recycling
Sian challenged the idea that recycling alone can solve the plastics crisis, arguing that efforts should be focused on “turning off the tap” by reducing plastic production and consumption at source. A Plastic Planet’s work focuses on identifying commercially viable alternatives and helping businesses transition away from unnecessary plastic use.
The Health Argument
A core theme of Sian’s presentation was that health science may become the catalyst for more meaningful action on plastics.
She highlighted concerns including:
- Widespread exposure to plastic-associated chemicals.
- The presence of plastics and plastic-related chemicals throughout everyday environments.
- Links between endocrine-disrupting chemicals and fertility concerns.
- Growing scientific interest in the impacts of microplastics and their associated chemical loads.
Sian stressed that plastics should not be viewed simply as a material but as complex mixtures of thousands of chemicals, many of which have not been thoroughly tested for human health impacts. She noted that only a fraction of the chemicals used in plastics have been comprehensively assessed.
Plastic Free Babies Campaign
A significant part of the presentation focused on A Plastic Planet’s new Plastic Free Babies initiative.
The campaign argues that the first 1,000 days of life represent a critical developmental period and seeks greater attention on exposure to plastic-associated chemicals in maternity wards, neonatal units and infant products. The campaign calls for stronger policy action, public awareness and industry engagement to reduce unnecessary exposures during early life.
Sian’s overarching message was that protecting human health—particularly the health of future generations—may be the most powerful driver for accelerating change.
Rethinking Paints and Coatings
Michiel Brouns, Brouns & Co
Michiel Brouns focused specifically on paint, describing it as “the plastic we forgot.”
His presentation argued that many modern paints have become so commonplace that people rarely recognise them as plastic products. Modern paints often contain significant amounts of synthetic polymers, effectively making them a liquid plastic coating applied to buildings.
The Legacy of Natural Paints
Drawing on his background in historic building preservation, Michiel contrasted modern synthetic paints with traditional coatings such as:
- Linseed oil paints.
- Lime washes.
- Clay paints.
- Casein paints.
- Silicate-based coatings.
These products were widely used for centuries before the emergence of petrochemical-based paints after the Second World War. According to Michiel, many of these traditional systems remain viable today and can offer advantages including durability, repairability and lower plastic content.
A Different Way of Thinking About Maintenance
Rather than repeatedly stripping and replacing failing coatings, Michiel advocated for maintenance systems that allow finishes to be refreshed and repaired over time, reducing both waste generation and plastic pollution. He argued that many coating solutions already exist and that specification choices made today can significantly reduce reliance on polymer-based products.