Livestock production is often a source of multiple pollutants in rivers. However, current assessments of water pollution seldomly take a multi-pollutant perspective, while this is essential for improving water quality. This study quantifies inputs of multiple pollutants to rivers from livestock production worldwide, by animal types and spatially explicit. We focus on nitrogen (N), phosphorus (P), and Cryptosporidium (pathogen). We developed the MARINA-Global-L (Model to Assess River Inputs of pollutaNts to seAs for Livetsock) model for 10,226 sub-basins and eleven livestock species. Global inputs to land from livestock are around 94 Tg N, 19 Tg P, and 2.9 × 10²¹ oocysts from Cryptosporidium in 2010. Over 57% of these amounts are from grazed animals. Asia, South America, and Africa account for over 68% of these amounts on land. The inputs to rivers are around 22 Tg Total Dissolved Nitrogen (TDN), 1.8 Tg Total Dissolved P (TDP), and 1.3 × 10²¹ oocysts in 2010. Cattle, pigs, and chickens are responsible for 74–88% of these pollutants in rivers. One-fourth of the global sub-basins can be considered pollution hotspots and contribute 71–95% to the TDN, TDP, and oocysts in rivers. Our study could contribute to effective manure management for individual livestock species in sub-basins to reduce multiple pollutants in rivers.

畜牧生产通常是河流中多种污染物的来源。然而，目前对水污染的评估很少采用多污染物的观点，而这对于改善水质至关重要。本研究通过动物类型和空间明确量化了全球畜牧生产对河流的多种污染物输入。我们专注于氮 (N)、磷 (P) 和隐孢子虫（病原体）。我们开发的码头-环球-L（中号奥德尔到一个ssess [R艾弗我nputs polluta的ň TS瑟一个S代表大号ivetsock) 模型用于 10,226 个子流域和 11 个牲畜物种。2010 年，全球牲畜对土地的投入约为 94 Tg N、19 Tg P 和来自Cryptosporidium 的2.9 × 10 ^{21 个}卵囊。其中超过 57% 的数量来自放牧动物。亚洲、南美洲和非洲占陆地上这些数量的 68% 以上。河流的输入约为 22 Tg 总溶解氮 (TDN)、1.8 Tg 总溶解磷 (TDP) 和 1.3 × 10 ²¹2010 年的卵囊。牛、猪和鸡对河流中 74-88% 的这些污染物负责。全球四分之一的子流域可被视为污染热点，占河流 TDN、TDP 和卵囊的 71-95%。我们的研究有助于对子流域中个别牲畜物种进行有效的粪便管理，以减少河流中的多种污染物。