Table 1. Estimates of plastic abundance (excluding fibers) in the upper 2 and 5 cm of sediments in coastal environments (mangroves and beaches) of the Arabian Gulf.
NA, not available.
| Site | Habitat |
Plastic stock in the top 2 cm, n items kg−1, means ± SE (median) |
Plastic stock in the top 5 cm, n items kg−1, means ± SE (median) |
n of samples | Reference |
| Saudi Arabia (Arabian Gulf coast) |
Mangroves | 84 ± 35 (58) | 83 ± 29 (74) | 5 cores | This study |
| Qatar | Beach (intertidal) | 8 ± 7 | NA | 24 | Abayomi et al. (31) |
| Iran (Arabian Gulf coast) | Beach (intertidal) | NA | 9 ± 2 | 15 | Naji et al. (37) |
| Iran (Arabian Gulf coast) | Beach (intertidal) | 15 ± 5 | NA | 12 | Naji et al. (38) |