Susanne Rust of the Los Angeles Times reports (paywalled) that industry executives knew for decades that microplastics were infiltrating the human body. Slashdot reader joshuark shares an excerpt from the report: Scientists today say we're just beginning to understand the harm that the tiny bits of plastic we drink, eat and breathe are doing to the human body. Internal memos among company scientists and executives obtained by The Times reveal that for at least half a century, the plastics industry has been aware of and concerned about the potential for microplastic contamination in the human body . But recently discovered chemical company documents dating back several decades show that industry scientists have long been aware of -- and concerned about -- the way microplastic particles migrate beyond the gut in animals and humans, depositing in important organs.…