Dr. Remucal’s Aquatic Chemistry research group works in two major areas. First, they investigate the transformation of polar organic contaminants in both natural and engineered aquatic systems. Contaminants of interest include aquatic pesticides, pharmaceuticals, and per- and polyfluoroalkyl substances (PFAS). We are interested in photochemical reaction mechanisms, oxidative transformation at mineral surfaces, and fate in conventional and advanced drinking water treatment systems. Second, they study the molecular composition and reactivity of dissolved organic matter (DOM). The group couples optical properties and analysis by high-resolution mass spectrometry to assess the reactivity of DOM in lakes and engineered treatment systems. By studying fundamental reaction mechanisms, the group aims to develop models and real-world applications that can be used to improve water quality.