“…These microplastics may have come from the mixing of airborne microplastics during production and packaging. According to statistics, the colors of MPs in the air vary, including blue, red, yellow, green, and other colors [28] , [30] , and they have both a large density and quantity. Zhang et al [51] showed that even in dormitories (9.9 10 3 MPs/m 2 /d) and offices (1.8 10 3 MPs/m 2 /d), there is a high abundance of MPs in the air.…”