McCabe, Andrew JArnold, William A2017-08-242017-08-242017-08-24https://hdl.handle.net/11299/189583Stormflow samples were collected from 31 sites near Minneapolis and St. Paul, Minnesota between 2014-September and 2015-October. Optical and photochemical parameters of the samples were measured under controlled laboratory conditions. The data were collected to better understand the way in which land cover with variable levels of human impact influence the formation rate and yield of triplet excited states of dissolved natural organic matter (3DOM*). Rates of formation (Rf,T) and apparent quantum yields (AQYT) were measured for 3DOM* using the chemical probe, 2,4,6-trimethylphenol, under a broadband xenon-arc lamp with a 290-nm wavelength filter.Creative Commons Attribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/stormflowstormwaterdissolved organic mattertriplet excited states of dissolved organic matterDOM compositionland coverphotochemically-produced reactive intermediatesapparent quantum yieldenvironmental photochemistryDatasethttps://doi.org/10.13020/D6M66B