The US EPA’s National Nutrient Inventory: Critical shifts in US nutrient pollution sources from 1987 to 2017 - Brehob, Meredith; Pennino, Michael; Compton, Jana; Zhang, Qian; Weber, Marc; Hill, Ryan; Markley, Selia; Pickard, Brian; Keefer, Maddie; Stackpoole, Sarah; Knose, Lauren; Ruiz-Mercado, Gerardo; et al. (Environmental Science and Technology, 2025)