Table 1 Number of measurements categorized by different plastic types and background waters, with percentages indicated in parentheses followed by the mean value of plastic fraction.

From: A Hyperspectral Reflectance Database of Plastic Debris with Different Fractional Abundance in River Systems

  

Background Waters

Sum

Normal

Sediment

Foamy

SpecimenType

PET

54 (2.6%)–10.9%

119 (5.7%)–19.2%

19 (0.9%)–20.4%

192 (9.2%)

HDPE

30 (1.4%)–13.2%

89 (4.3%)–21.2%

26 (1.3%)–16.4%

145 (7.0%)

LDPE

18 (0.8%)–10.6%

82 (3.9%)–16.6%

52 (2.5%)–15.2%

152 (7.3%)

PP

52 (2.6%)–19.9%

114 (5.5%)–19.1%

68 (3.3%)–15.8%

234 (11.3%)

EPSF

16 (0.8%)–22.6%

68 (3.3%)–22.3%

8 (0.4%)–17.1%

92 (4.4%)

Mix

445 (21.4%)–28.5%

332 (16.0%)–28.2%

231 (11.1%)–29.8%

1008 (48.5%)

Weathered

23 (1.1%)–33.1%

159 (7.7%)–29.0%

73 (3.5%)–35.9%

255 (12.3%)

 

Sum

638 (30.7%)

963 (46.3%)

477 (23.0%)

2078 (100%)

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