This research reveals distribution of p-phenylenediamines and quinones in cloud water, suggesting their role in atmospheric transport and pollutant fate.
levels with the deposition fluxes of both PPDs and PPD-Qs in WSOM and WISOM, demonstrating cloud water's key role in their atmospheric transport and wet deposition. This study presents the first characterization of PPDs and their quinone derivatives' distribution and environmental behavior in cloud water, revealing clouds' significant role in the fate of rubber-derived pollutants. The findings reveal clouds as pivotal reactors for tire-derived pollutants, driving oxidation and multiphase portioning, previously overlooked in global contaminant cycling.
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Zhang et al. (2026) studied this question.
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