Jianmin Chen

Solid Waste Burning: An Overlooked Atmospheric Source of p -Phenylenediamine Antioxidants and Their Quinones

Abstract N,N′-Disubstituted p-phenylenediamines (PPDs) and their oxidized derivatives (PPD-Qs) are widely used as rubber antioxidants, but their atmospheric sources remain incompletely characterized. Here we systematically investigate solid waste burning as a previously overlooke...

Evolutions of Non‐oxygenated Compounds in Sunlit Subarctic Thermokarst Pond Surface Waters

Abstract With global climate change, ground subsidence caused by permafrost thawing leads to the formation of thermokarst ponds, where organics from eroding permafrost accumulate in part as dissolved organic matter (DOM). Surface waters were collected from two subarctic thermokar...

Molecular characteristics and formation pathways of organosulfur compounds: a comparative field study across contrasting atmospheric environments

Abstract. Organosulfur compounds (OrgSs), especially organosulfates (OSs), are ubiquitous aerosol components. However, the spatial, seasonal, and day-night variations of OrgS formation in polluted atmospheres remain poorly understood. Here, we monitored particulate OrgSs at an ur...