42
K. Amrutha et al.
Table 3
(continued)
Sl.
no
Location
Type of
sample
Environmen-tal
setting
Methodology
adopted
Size range
(mm)
Average microplastics
concentration
Polymer
types
Reporting
units
References
N1 Nepal
Road dust Urban
Stereoscopic
Microscope and
digital camera,
ATR-FTIR
100–5 mm
Kathmandu: 12.5
± 10.1
pieces/m2
PE, PP,
PS, PET,
PAK,
PVS,
EPC,
SBR,
EPDM
PU
Pieces/m2
[138]
B2 Northern
Bay of
Bengal
Shrimp
Marine
Microscope with
digital camera,
µ-FTIR
1–250
µm
250–500
µm
500
µm–1 mm
1–5 mm
P. monodon-3.40
± 1.23
item/g
M. monocerous3.87
± 1.05 item/g
PA rayon Item/g
[46]
P1
Pakistan
Sediment
water
Riverine
Stereomicroscope
with digital
camera,
ATR-FTIR
300
µm-5 mm
150–300
µm
Water: 2074
± 3651
MPs/m 3
Sediments: 3726
± 9030
MPs/m 2
PE, PP,
PS
MPs/m 3
MPs/m 2
[49]
P2
Pakistan
Sediment
water
Lake
Light microscope
(10x and
× 40),
FTIR
<5 mm
Water: 0.142 items/0.1 L
Sediments: 1.04
items/0.01 kg
PE, PP,
PET,
PVC
Items/0.1 L
Items/0.01 kg
[48]
M4 Maldives
Sediments Marine
Stereozoom
Microscope (30x)
with Digital
Microscope
Imager
<5 mm
277.90
± 24.98 MPs/kg –
Mps/kg
[90]
(continued)