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  "publishedAt": "2026-03-05T02:31:51.000Z",
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  "textContent": "submitted by who to world\n610 points | 97 comments\nhttps://phys.org/news/2026-03-microplastics-nanoplastics-urban-air-abrasion.html",
  "title": "Microplastics and nanoplastics in urban air originate mainly from tire abrasion, research reveals"
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