Table 2 An overview of individual and accumulated scores for evaluation criteria from studies reporting microplastic concentrations in air, atmospheric deposition, snow, dust and moss

Wright et al. (2020) [42]

Deposition

2

2

2

2

1

1

1

2

2

1

2

18

Gaston et al. (2020) [43]

Air (outdoor and indoor)

2

2

0

2

0

2

0

2

1

2

2

15

Wang et al. (2020) [44]

Air (outdoor)

2

2

1

2

1

1

0

2

1

2

1

15

Klein and Fischer (2019) [22]

Deposition

2

2

1

2

1

2

0

1

2

1

1

15

Bergmann et al. (2019) [3]

Snow

1

0

1

2

2

1

0

2

2

2

2

15

Vianello et al. (2019) [45]

Ambient Air (indoor)

2

2

0

1

2

1

0

2

2

1

1

14

Liu et al. (2019) [46]

Air (outdoor)

1

2

1

2

2

0

0

2

1

1

1

13

Stanton et al. (2019) [47]

Deposition

1

2

1

2

1

1

0

2

2

0

1

13

Allen et al. (2019) [20]

Deposition

2

1

2

0

1

1

0

1

2

1

1

12

Liu et al. (2019) [48]

Air (outdoor)

2

1

1

2

2

0

0

0

1

1

1

11

Dris et al. (2016) [5]

Deposition

2

1

1

1

0

1

0

2

1

1

1

11

Zhang et al. (2019) [24]

Dust

1

0

1

0

0

1

2

2

2

2

0

11

Roblin and Aherne (2020) [49]

Moss

2

0

0

2

2

2

0

1

1

0

1

11

Brahney et al. (2020) [21]

Deposition

1

1

1

0

0

2

0

2

1

1

2

11

Li et al. (2020) [50]

Air / Dust (outdoor)

1

2

0

0

0

0

0

2

2

1

2

10

Su et al. (2020) [51]

Dust

1

0

1

1

0

2

0

1

1

2

1

10

Peller et al. (2019) [52]

Air (outdoor)

1

1

0

0

2

1

0

0

2

2

0

9

Dehghani et al. (2017) [53]

Dust

1

0

1

2

0

1

0

1

2

0

1

9

Abbasi et al. (2019) [54]

Air / Dust (outdoor)

2

1

0

2

0

0

0

1

2

0

1

9

Liu et al. (2019) [55]

Dust

2

0

2

0

0

1

0

1

1

1

0

8

Tunahan et al. (2018) [18]

Air / Deposition / Dust (outdoor)

1

1

2

0

0

0

0

0

1

1

1

7

Cai et al. (2017) [15]

Deposition

2

1

1

0

0

0

0

0

1

1

1

7

Dris et al. (2015) [16]

Deposition

2

1

0

1

0

1

0

0

1

0

1

7

Dris et al., (2017) [4]

Air (outdoor and indoor) / Deposition / Dust (indoor)

1

1

0

0

0

0

0

1

1

1

1

6

Yukioka et al. (2020) [56]

Dust

1

0

1

0

0

0

0

1

0

2

1

6

Syafei et al. (2019) [57]

Air (outdoor)

2

0

0

0

0

0

0

0

1

1

0

4

Asrin et al. (2019) [58]

Air (outdoor)

0

0

0

0

0

0

0

0

0

1

1

2