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ship fire and plastic spill were analyzed. A semiquantitative comparison showed that the pyroplastic samples contained over 2 orders of magnitude more of the 16 large PAHs (314-424 Da) than unburnt plastic pellets, reflecting previously observed trends for parent PAHs up to 278 Da. Qualitative comparison of samples and SRMs revealed multiple potential candidates (including 1,3,5-triphenylbenzene) suitable for further study as markers of pyroplastics in complex environmental samples. A suite of chemical markers for pyroplastics should prove helpful in monitoring efforts for air quality, waste management, microplastic pollution, and fires at the forest-urban interface.
Megill et al. (Sun,) studied this question.