TY - JOUR
T1 - Microplastics in river sediments in two streams in an Andean region of Peru
AU - Canchari, Franklin
AU - Iannacone, José
N1 - Publisher Copyright:
© 2024, Brazilian Journal of Water Resources. All rights reserved.
PY - 2024
Y1 - 2024
N2 - The objective of this study was to determine the concentration, types and characteristics (size, morphology and color, as well as polymer composition) of MPs in surface sediments in two streams in an Andean region of Peru. Surface sediment samples were collected in Ishoj stream (11 sampling sites) and Uyru Rume stream (8 sampling sites), and density separation was performed using high-density saline solution (zinc chloride, ZnCl2) to separate the MPs from the sediment. The concentration of MPs ranged from 0-2216 items/ Kg (Ishoj stream) and 0-6383 items/Kg (Uyru Rume stream). In both streams, the maximum concentration of MPs was in the sites located near the dumps (solid waste collection, downstream) and the minimum value was found in the sites located in the upper zone. The size, morphology and predominant color in both streams were less than 1 mm, fragment and transparent, respectively. No MPs were found in pellet form. PP (polypropylene) was the predominant MPs in Raman analysis. All MPs were secondary. This study report contamination by MPs in streams in Andean zones.
AB - The objective of this study was to determine the concentration, types and characteristics (size, morphology and color, as well as polymer composition) of MPs in surface sediments in two streams in an Andean region of Peru. Surface sediment samples were collected in Ishoj stream (11 sampling sites) and Uyru Rume stream (8 sampling sites), and density separation was performed using high-density saline solution (zinc chloride, ZnCl2) to separate the MPs from the sediment. The concentration of MPs ranged from 0-2216 items/ Kg (Ishoj stream) and 0-6383 items/Kg (Uyru Rume stream). In both streams, the maximum concentration of MPs was in the sites located near the dumps (solid waste collection, downstream) and the minimum value was found in the sites located in the upper zone. The size, morphology and predominant color in both streams were less than 1 mm, fragment and transparent, respectively. No MPs were found in pellet form. PP (polypropylene) was the predominant MPs in Raman analysis. All MPs were secondary. This study report contamination by MPs in streams in Andean zones.
KW - Dumps
KW - Fragment
KW - Intermittent streams
KW - Madeán
KW - Polypropylene
UR - http://www.scopus.com/inward/record.url?scp=85207874122&partnerID=8YFLogxK
U2 - 10.1590/2318-0331.292420240016
DO - 10.1590/2318-0331.292420240016
M3 - Artículo
AN - SCOPUS:85207874122
SN - 2318-0331
VL - 29
JO - Revista Brasileira de Recursos Hidricos
JF - Revista Brasileira de Recursos Hidricos
M1 - e31
ER -