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Extraction and detection of microplastics from agriculture soil near industrial area of kapurthala (Punjab)
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Microplastics were extracted and characterized from agricultural soil near an industrial area in Punjab, India, with fragments and fibers detected at significant concentrations. Industrial proximity was associated with higher soil microplastic loads, pointing to airborne deposition and wastewater irrigation as likely sources. The findings underscore the need for monitoring microplastic contamination in agricultural soils to understand risks to soil health and food safety.
Microplastics in soil have been found in large quantities and MPs cause adverse effects on agricultural soil fauna. Microplastic pollution in the soil has become a major global issue. Understanding the occurrence, fate, and impacts of microplastic requires reliable methods for their extraction and identification. The study aims to evaluate the extraction and detection of microplastics from agricultural soil by using density floatation and filtration method employing NaCl and including the pre-digestion of soil with hydrogen peroxide to remove all the organic matter present in the soil. High-density salt solutions were more efficient in separating small microplastic particles in the soil. The first approach to identify microplastics is naked eye or microscopy. Another technique to identify microplastics is the ATR-FTIR spectrophotometer, such as fibres, fragments, and film identified by using ATR- FTIR spectrophotometer. The extracted microplastics were polypropylene, polybutylene tetrapthalate; polyethylene, polystyrene and polyethylene tetrapthalate and the size of particles was determined by using microscope. Several analytical techniques used for characterization of MPS, such as SEM and XRD. This study concludes that the size range of extracted microplastics is Also see: https://micro2022.sciencesconf.org/424170/document
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