Table 6 Total number of studies, and number of studies included in the quantitative synthesis and narrative synthesis of the findings, by exposure category

Pesticide

244

(18.1%)

144

(20.7%)

Not included

Metal

205

(15.2%)

159

(22.8%)

Not included

Hydrocarbon

160

(11.9%)

117

(16.8%)

Not included

UV filter

213

(15.8%)

68

(9.8%)

36

(24%)

Microplastic

141

(10.5%)

56

(8%)

50

(33.3%)

Pharmaceutical

121

(9%)

30

(4.3%)

30

(20%)

Dispersant

68

(5%)

31

(4.4%)

6

(4%)

Detergent

25

(1.9%)

11

(1.6%)

8

(5.3%)

Nanoparticle

12

(0.9%)

5

(0.7%)

4

(2.7%)

Other

45

(3.3%)

15

(2.2%)

16

(10.7%)

Hydrocarbon | dispersant

87

(6.5%)

38

(5.5%)

Not included

Metal | pesticide

12

(0.9%)

10

(1.4%)

Not included

Metal | nutrient

11

(0.8%)

11

(1.6%)

Not included

Metal | hydrocarbon

2

(0.1%)

2

(0.3%)

Not included

Metal | pharmaceutical

1

(0.1%)

0

Not included

Hydrocarbon | pharmaceutical

1

(0.1%)

0

Not included