TY - JOUR
T1 - Evidences of microplastics in Hawassa Lake, Ethiopia
T2 - A first-hand report
AU - Jeevanandam, M.
AU - Talelign, Wegene
AU - Biru, Adane
AU - Sakthi, J. S.
AU - Silva, Judith D.
AU - Saravanan, P.
AU - Jonathan, M. P.
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/6
Y1 - 2022/6
N2 - Investigation on freshwater MPs has increased gradually across the world, since they are main trajectory for the transportation of MPs from inland to ocean. The present study aims to identify the presence, distribution and the type of MPs in the lake Hawassa, Ethiopia. Twenty-five shoreline surface sediments were separated using ZnCl2 solution and was microphotographed using SEM and type of MP was identified using FTIR spectra. The abundance of MPs was in range of 11–74 items/m3 near the catchment area of the lake in the eastern side. Fiber (90%), fragments (5%) and pellets (5%) were the commonly observed form with varied colour such as white, black, blue, red and others. Our results infer that the common polymer detected in the study area were polyester (82%), polyethylene (15%) and polystyrene (3%) infer their origin from fishing nets, ropes and plastics bags. The industries near the lake contributes more MPs, where the waste water effluents are drained directly into the lake. Spearman's correlation matrix applied among the MPs characters endorses the fate of MPs in the lake environment indicating the weathering process (especially due to bleaching process). Comparative studies with other lake regions around the globe indicate higher values which is entirely and it depends on various factors surrounding the study area. Being, highly polluted lake in Ethiopia, this study extremely acclaims that some monitoring studies in fresh water components in the lake Hawassa helps to mitigate the prevailing MPs pollution.
AB - Investigation on freshwater MPs has increased gradually across the world, since they are main trajectory for the transportation of MPs from inland to ocean. The present study aims to identify the presence, distribution and the type of MPs in the lake Hawassa, Ethiopia. Twenty-five shoreline surface sediments were separated using ZnCl2 solution and was microphotographed using SEM and type of MP was identified using FTIR spectra. The abundance of MPs was in range of 11–74 items/m3 near the catchment area of the lake in the eastern side. Fiber (90%), fragments (5%) and pellets (5%) were the commonly observed form with varied colour such as white, black, blue, red and others. Our results infer that the common polymer detected in the study area were polyester (82%), polyethylene (15%) and polystyrene (3%) infer their origin from fishing nets, ropes and plastics bags. The industries near the lake contributes more MPs, where the waste water effluents are drained directly into the lake. Spearman's correlation matrix applied among the MPs characters endorses the fate of MPs in the lake environment indicating the weathering process (especially due to bleaching process). Comparative studies with other lake regions around the globe indicate higher values which is entirely and it depends on various factors surrounding the study area. Being, highly polluted lake in Ethiopia, this study extremely acclaims that some monitoring studies in fresh water components in the lake Hawassa helps to mitigate the prevailing MPs pollution.
KW - Anthropogenic influence
KW - Ethiopia
KW - Hawassa lake
KW - Lake sediments
KW - Microplastics
UR - http://www.scopus.com/inward/record.url?scp=85125494267&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2022.133979
DO - 10.1016/j.chemosphere.2022.133979
M3 - Artículo
C2 - 35182535
AN - SCOPUS:85125494267
SN - 0045-6535
VL - 296
JO - Chemosphere
JF - Chemosphere
M1 - 133979
ER -