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Table 2

Size, shape and buoyancy characteristics of 150 individual microbeads extracted from products 1–6. DOI: https://doi.org/10.1525/elementa.317.t2

Product #Particle length (µm)aBuoyancy behavior in small containers

MaximumMinimumMean ± STDbMicrobead descriptionaIn freshwaterIn seawater

 
1586 63 473 ± 231 white amorphous, blue spherical positive positive 
636 82 177 ± 84 white amorphous, blue spherical positive positive 
608 22 173 ± 131 white amorphous, blue spherical positive (white), negative (blue) positive (both) 
555 76 242 ± 83 white amorphous, light blue elliptical, dark blue spherical positive positive 
555 49 151 ± 68 white amorphous, green spherical positive positive 
568 27 226 ± 118 white amorphous, blue spherical positive positive 
Product #Particle length (µm)aBuoyancy behavior in small containers

MaximumMinimumMean ± STDbMicrobead descriptionaIn freshwaterIn seawater

 
1586 63 473 ± 231 white amorphous, blue spherical positive positive 
636 82 177 ± 84 white amorphous, blue spherical positive positive 
608 22 173 ± 131 white amorphous, blue spherical positive (white), negative (blue) positive (both) 
555 76 242 ± 83 white amorphous, light blue elliptical, dark blue spherical positive positive 
555 49 151 ± 68 white amorphous, green spherical positive positive 
568 27 226 ± 118 white amorphous, blue spherical positive positive 

a Determined by dark field microscopy.

b Standard deviation.

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