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Harvesting seasonal assessment of microplastic contamination in Guatemalan edible salt from the Pacific coast's seawater and groundwater sources
Colloid & Polymer Science
2026
Ana L.I. Romero,
Ingrid Benítez-Pacheco,
Edward M.A. Guerrero-Gutiérrez
Summary
Researchers found that edible salt produced along Guatemala's Pacific Coast contains some of the highest microplastic levels reported globally, with concentrations peaking at the end of the harvesting season—up to 1,884 particles per kilogram—and fibers accounting for over 90% of particles regardless of whether salt was derived from seawater or groundwater.
Study Type
Environmental