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Scientists say humans have started pooping microplastics

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Claire Reilly Former Principal Video Producer
Claire Reilly was a video host, journalist and producer covering all things space, futurism, science and culture. Whether she's covering breaking news, explaining complex science topics or exploring the weirder sides of tech culture, Claire gets to the heart of why technology matters to everyone. She's been a regular commentator on broadcast news, and in her spare time, she's a cabaret enthusiast, Simpsons aficionado and closet country music lover. She originally hails from Sydney but now calls San Francisco home.
Expertise Space, Futurism, Science and Sci-Tech, Robotics, Tech Culture Credentials
  • Webby Award Winner (Best Video Host, 2021), Webby Nominee (Podcasts, 2021), Gold Telly (Documentary Series, 2021), Silver Telly (Video Writing, 2021), W3 Award (Best Host, 2020), Australian IT Journalism Awards (Best Journalist, Best News Journalist 2017)
Claire Reilly
2 min read
Different plastic waste

Our reliance on plastic could be seriously harming us on the inside. 

Getty Images

Humans rely on plastic, and now it's becoming part of us -- literally.

Researchers from the Medical University of Vienna and the Environment Agency Austria released new research on Tuesday showing that microplastics have now entered the human foodchain and are present in human faeces.

The scientists studied eight people from across the world, examining their stool samples for the presence of microplastics. In a worrying warning sign for our health, they found all eight participants tested positive for microplastics in their stool samples, with nine separate types of plastic identified.

On average, the researchers say they found 20 microplastic particles per 10 grams of stool.

Microplastics are tiny particles of plastic less than 5 millimetres in size that occur when plastic products break down. They're also commercially produced and found in products like body wash. And that glitter you're dusting over a school art project? That's a microplastic.

Scientists have already found microplastics in our oceans, with consumption by fish causing big problems in the food chain. But according to the professional United European Gastroenterology organisation, they can also affect human health by accumulating in the gut and leaching toxic chemicals.

While the study was limited to a handful of people, the scientists behind it said the results are concerning.

"This is the first study of its kind and confirms what we have long suspected, that plastics ultimately reach the human gut," said lead researcher Dr. Philipp Schwabl.

"While the highest plastic concentrations in animal studies have been found in the gut, the smallest microplastic particles are capable of entering the blood stream, lymphatic system and may even reach the liver."

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