Table 1.

Amount and type of microplastic contamination reported in different marine and terrestrial sites of the world

Country/region	Sampling site	Sample type	Microplastic (MP) types/shapes	MP-amount	References
Atlantic Ocean	South-North transect	Surface	PE and PP	1723 ± 1793 particles m3 and 822 ± 1250 particles/ m3	Pabortsava and Lampitt (2020)
Australia	Gardens	Soil	PE and PP	NA	Sobhani et al. (2021)
Brazil	Guanabara bay sublittoral sites	Sediment	Polyester	160–1000 items/kg	Alves and Figueiredo (2019)
	Patos Lagoon (Laranjal beach)	Water	LDPE, HDPE, and PFTE	0.00021 g/L	Silva and de Sousa (2021)
China	Laizhou Bay	Water and Sediment	PET, Cellophane (CP), PE and PP	1.7 ± 1.5 particles/m3 and 461.6 ± 167.0 particles/kg	Teng et al. (2020)
	Maowei Sea	Water	Polyester and Rayon	1.2–10.1 particles/L	Zhu et al. (2019)
	North Yellow Sea	Surface water and Sediment	PE and PP	545 ± 282 items/m3 and 37.1 ± 42.7 items/kg	Zhu et al. (2018)
	Jiaozhou Bay	Water and Sediment	PET, PP, and PE	20–120 items/m3 and 7–25 items/kg	Zheng et al. (2019)
French Polynesia	Tropical lagoons	Surface water and Pearl oyster	PE, and PP	0.2–8.4 items/m3 and 2.1–125.0 items/g	Gardon et al. (2021)
India	Coastal stretch of the Bay of Bengal	Water, sediment, and dry sand	PP, PE, polyesters, and fluoro-polymers	60–820 items/m3, 60–1620 items/kg, and 20–1540 items/kg	Sunitha et al. (2021)
	River shoreline Brahmaputra river	Sediment	PP, PE, and PVC	20–240 MP/Kg (particles larger than 150 μm) and 531–3485 MP/kg (MP particles size range 20–150 μm)	Tsering et al. (2021)
	Calicut beach, Kerela	Sediment	PE, PE + PP, PP, PS, PCU, PET, and PVC	80.56 items/Kg	Kumar and Varghese (2021)
Indonesia	Jakarta bay (Sunda Kelapa Port)	Sediment	PP, PE, PS, and PA	45,066.67 ± 2444.04 particles/kg	Azizi et al. (2021)
	Banten Bay	Sediment	Foam and PS	267 ± 98 particles/kg	Falahudin et al. (2020)
Malaysia	Klang River, estuary	Surface water	PE, PA, fibers, and pellets	2.47 particles/L	Zaki et al. (2021)
Mediterranean Sea	Calabrian coasts	Surface water	PE	0.13 ± 0.19 particles/ m2	Marrone et al. (2021)
Nepal	Mount Everest	Stream water and Snow	Polyester fibers	1 item/L and 30 items/L	Napper et al. (2020)
Pacific Ocean	Western part	Sediment	PP, PE, and PET	240 items per kg dry weight	Zhang et al. (2020)
	Mid North	Surface water	PP and irregular fragments	0.51 ± 0.36 items/m3	Pan et al. (2022)
Portugal	Beaches of Portuguese coast	Sediment	Resin pellets, and PS	358–1679 items m−2, and 63–169 items m−2	Antunes et al. (2018)
South America	Two Tributaries of Cuiaba River	Water	Microfibers	9.6 ± 8.3 × 100/L	Faria et al. (2021)
Taiwan	Taiwan Strait	Sediment and surface seawater	Films, fragment, fibers, and granules	28–208 items/kg and 0.004–0.0058 items/m3	Wu et al. (2021)
Tropical Eastern Pacific and Galapagos	Coast	Water and specimens	Fibers	NA	Alfaro-Núñez et al. (2021)
United States	Northwest Panhandle Florida and Central Florida	Water and snails	Microbeads, microfragments, and microfibers	8.375 items/L and 4.26 MPs/snail	Kleinschmidt and Janosik (2021)