As precipitation acidity in the United States has decreased dramatically over the past forty years, new questions have emerged about the role of base cations and nitrogen (N) species in regulating precipitation pH. To address these questions, we studied precipitation chemistry in Ohio, a state with high N deposition and a mix of urban, industrial, and agricultural land use. This dataset contains precipitation chemistry and the flux of particulate matter collected at four sites along an agricultural-urban transect in central Ohio over the summers of 2021 and 2022. Samples were collected weekly from three or five replicate passive bulk deposition collectors at each site. In the lab, we filtered the samples and calculated the flux of total particulate matter. Liquid samples were measured for pH, nitrate, ammonium, and major ions. This dataset is complete and will not be added to in the future.