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Updated: Jan 28, 2026

Accumulation and Distribution of Fluorescent Microplastics in the Early Life Stages of Zebrafish
Published on: July 4, 2021
Distribution and characterization of microplastics in beach sand from three different Indian coastal environments
M Tiwari1, T D Rathod1, P Y Ajmal1
1Environmental Monitoring and Assessment Section, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai 400085, India.
Abstract:
The occurrence of microplastic particles were evaluated on beaches along the Indian coast from three different locations Girgaon Mumbai (Arabian sea coast), Tuticorin, and Dhanushkodi (Bay of Bengal coast). Density separation method was adopted for isolation of microplastics from sand. Isolated microplastics were characterized using three different analytical techniques e.g. fluorescence microscopy (after staining with Nile Red), FTIR and SEM-EDS techniques. Microplastic concentrations in beach sands were from 45 ± 12 # MP kg-1 to 220 ± 50 # MP kg-1 of dry sand. The order of abundance of plastic type was polyethylene (43%) > polyethylene terephthalate (17.3%) ≈ polystyrene (17%) > polypropylene (12.3%) > Others (11%) > polyvinylchloride (1.33%), and very similar profile was observed for all monitored locations. SEM images show microplastics surfaces with characteristic cracks, suggests their polymer aging, mechanical and oxidative weathering, which was found highest for the microplastics collected from Mumbai.
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