Microplastic particles are of increasing environmental concern due to the widespread uncontrolled degradation of various commercial products made of plastic and their associated waste disposal. Recently, common technology used to repair sewer pipes was reported as one of the emission sources of airborne microplastics in urban areas. This research presents results of the multi-modal comprehensive chemical characterization of the microplastic particles related to waste discharged in the pipe repair process and compares particle composition with the components of uncured resin and cured plastic composite used in the process.
View Article and Find Full Text PDFIron (Fe) is ubiquitous in nature and found as Fe or Fe in minerals or as dissolved ions Fe or Fe in aqueous systems. The interactions of soluble Fe have important implications for fresh water and marine biogeochemical cycles, which have impacts on global terrestrial and atmospheric environments. Upon dissolution of Fe into natural aquatic systems, organic carboxylic acids efficiently chelate Fe to form [Fe-carboxylate] complexes that undergo a wide range of photochemistry-induced radical reactions.
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