Microplastics mostly come from degrading plastics, the biggest culprit seems to be "temporary" one use plastics textiles, tires, and city dust make up 80% of microplastics (source: Wikipedia)
if it's been happening since WW2 why are people worrying about it now?
It took a while for the negative health consequences to be fully researched, and for the plastic industry to infiltrate every aspect of our life as much as it has.
And you can bet your ass the plastic industry does their best to suppress any research papers that would make people skeptical of their product, just like the Oil Industry hid all the negative consequences of burning through millenniums worth of oil
It's more like plastic production is a byproduct of oil production, like, it literally came about from oil companies looking for ways to profit from their waste, the two are intrinsically linked
That's the thing, half of all plastics in existence have been made since about 2000. They've just displaced everything else that we used to use in packaging, and lots more.
One of the biggest sources is clothing made of polyester. Fibers come off each time you wash it. Plastic wrapping might be the biggest- everything that is bought retail or wholesale in plastic wrapping is part of this.
It doesn't get chemically broken down, but it does get scraped and ground down into really small pieces, and even the sun causes it to peel and chip and splinter on a micro level.
The paper also found the quantity of microplastics in brain samples from 2024 was about 50% higher from the total in samples that date to 2016, suggesting the concentration of microplastics found in human brains is rising at a similar rate to that found in the environment. Most of the organs came from the office of the medical investigator in Albuquerque, New Mexico, which investigates untimely or violent deaths.
“You can draw a line – it’s increasing over time. It’s consistent with what you’re seeing in the environment,”
We use plastic for everything, and that trend hasn't slowed. Over time plastics and their mini-bits have been found in every part of the planet, in the soil and air, deep in a glacier, you name it. There is no avoiding it. Everything you touch, eat, drink, and wear at some point will contain these forever chemical plastics.
i can appreciate journalists can't say technical words but the emphasis is on the wrong characteristic and clearly people confuse the term for other things that are long-lasting. couldda called em cancer juice