More than 115 cases of eye damage reported in Ontario after solar eclipse
More than 115 people who viewed the solar eclipse in Ontario earlier this month experienced eye damage after the event, according to eye doctors in the province.
Microplastics have been found in historic soil samples for the first time, according to a new study, potentially upending the way archaeological remains are preserved.
Researchers found microplastics in soil deposits more than seven metres (23 feet) underground, which were deposited in the first or second century CE and excavated in the 1980s, a team led by researchers from the University of York in the United Kingdom said in a statement published Friday.
In total, the study identified 16 different microplastic polymer types in contemporary and archived soil samples, the statement adds.
Microplastics are tiny pieces of plastic that are no larger than five millimet\res (0.2 inches)—about the size of a single sesame seed—and form when larger plastics break down, either by chemically degrading or physically wearing down into smaller pieces.
They were also commonly used in some beauty products until around 2020, say researchers, and conversations about their proliferation in the world around us have spiked in recent years.
There are concerns about the impact of microplastics on the environment and on human health, but this latest study also suggests they could force a change in the entire field of archaeology.
While preserving archaeological remains in situ has been the favoured approach in recent years, the new findings could trigger a change in approach, as microplastic contamination could compromise the remains' scientific value.
"This feels like an important moment, confirming what we should have expected: that what were previously thought to be pristine archaeological deposits, ripe for investigation, are in fact contaminated with plastics, and that this includes deposits sampled and stored in the late 1980s," John Schofield, a professor and director of studies in the University of York's Department of Archaeology, said in the statement.
"We are familiar with plastics in the oceans and in rivers. But here we see our historic heritage incorporating toxic elements. To what extent this contamination compromises the evidential value of these deposits, and their national importance is what we'll try to find out next."
David Jennings, chief executive of York Archaeology, explained why microplastic contamination is such a concern.
"Our best-preserved remains—for example, the Viking finds at Coppergate (in the city of York)— were in a consistent anaerobic waterlogged environment for over 1000 years, which preserved organic materials incredibly well," he said in the statement.
"The presence of microplastics can and will change the chemistry of the soil, potentially introducing elements which will cause the organic remains to decay. If that is the case, preserving archaeology in situ may no longer be appropriate."
The study was published in Science of the Total Environment.
More than 115 people who viewed the solar eclipse in Ontario earlier this month experienced eye damage after the event, according to eye doctors in the province.
A Sherwood Park family says their new house is uninhabitable. The McNaughton's say they were forced to leave the house after living there for only a week because contaminants inside made it difficult to breathe.
A man has been handed a lengthy hunting ban and fined thousands of dollars for illegally killing a grizzly bear, B.C. conservation officers say.
The B.C. NDP has asked the federal government to recriminalize public drug use, marking a major shift in the province's approach to addressing the deadly overdose crisis.
The Ontario Provincial Police (OPP) says it's investigating an interaction between a uniformed officer and anti-Trudeau government protestors after a video circulated on social media.
An emergency slide fell off a Delta Air Lines jetliner shortly after takeoff Friday from New York, and pilots who felt a vibration in the plane circled back to land safely at JFK Airport.
Sophie Gregoire Trudeau says there is 'still so much love' between her and Prime Minister Justin Trudeau, as they navigate their post-separation relationship co-parenting their three children.
George Mallory is renowned for being one of the first British mountaineers to attempt to scale the dizzying heights of Mount Everest during the 1920s. Nearly a century later, newly digitized letters shed light on Mallory’s hopes and fears about ascending Everest.
A loud explosion was heard across Hamilton on Friday after a propane tank was accidentally destroyed and detonated at a local scrap metal yard, police say.
As if a 4-0 Edmonton Oilers lead in Game 1 of their playoff series with the Los Angeles Kings wasn't good enough, what was announced at Rogers Place during the next TV timeout nearly blew the roof off the downtown arena.
Mounties in Nanaimo, B.C., say two late-night revellers are lucky their allegedly drunken antics weren't reported to police after security cameras captured the men trying to steal a heavy sign from a downtown business.
A property tax bill is perplexing a small townhouse community in Fergus, Ont.
When identical twin sisters Kim and Michelle Krezonoski were invited to compete against some of the world’s most elite female runners at last week’s Boston Marathon, they were in disbelief.
The giant stone statues guarding the Lions Gate Bridge have been dressed in custom Vancouver Canucks jerseys as the NHL playoffs get underway.
A local Oilers fan is hoping to see his team cut through the postseason, so he can cut his hair.
A family from Laval, Que. is looking for answers... and their father's body. He died on vacation in Cuba and authorities sent someone else's body back to Canada.
A former educational assistant is calling attention to the rising violence in Alberta's classrooms.
The federal government says its plan to increase taxes on capital gains is aimed at wealthy Canadians to achieve “tax fairness.”