Microplastics Discovered in Ancient Soil Samples
In a groundbreaking discovery, researchers have found microplastics in soil samples dating back to the first or second century CE, challenging the assumption of pristine archaeological deposits.
Discovery of Microplastics
The study, published in Science of the Total Environment, identified 16 different microplastic polymer types in contemporary and archived soil samples. This finding can potentially reshape how we preserve archaeological treasures.
What are Microplastics?
Microplastics are tiny pieces of plastics, smaller than five millimetres (0.2 inches), formed as larger plastics break down. They were commonly used in beauty products until about 2020.
Microplastics: Environmental and Archaeological Implications
Microplastics have raised concerns about their environmental and health effects. The discovery of microplastics in ancient soil samples could prompt a rethink in the field of archaeology.
Preserving archaeological remains in situ has been the norm, but microplastic contamination could compromise their scientific value and trigger a potential shift in preservation strategies.
John Schofield, a professor at the University of York, emphasized the significance of the findings, highlighting the incorporation of toxic elements in historic heritage due to microplastic contamination.
David Jennings, chief executive of York Archaeology, pointed out the potential consequences of microplastic contamination on organic remains, such as those found at Coppergate in York.
