Mercury (Hg) inputs have particularly impacted the northeastern United States due to its proximity to anthropogenic emissions sources and abundant habitats that efficiently convert inorganic Hg into methylmercury. Intensive research and monitoring efforts over the past 50 years in New York State, USA, have informed the assessment of the extent and impacts of Hg exposure on fishes and wildlife. By synthesizing Hg data statewide, this study quantified temporal trends of Hg exposure, spatiotemporal patterns of risk, the role that habitat and Hg deposition play in producing spatial patterns of Hg exposure in fish and other wildlife, and the effectiveness of current monitoring approaches in describing Hg trends. Most temporal trends were stable, but we found significant declines in Hg exposure over time in some long-sampled fish. The Adirondack Mountains and Long Island showed the greatest number of aquatic and terrestrial species with elevated Hg concentrations, reflecting an unequal distribution of exposure risk to fauna across the state. Persistent hotspots were detected for aquatic species in central New York and the Adirondack Mountains. Elevated Hg concentrations were associated with open water, forests, and rural, developed habitats for aquatic species, and open water and forested habitats for terrestrial species. Areas of consistently elevated Hg were found in areas driven by atmospheric and local Hg inputs, and habitat played a significant role in translating those inputs into biotic exposure. Continued long-term monitoring will be important in evaluating how these patterns continue to change in the face of changing land cover, climate, and Hg emissions.

汞 (Hg) 输入对美国东北部的影响尤其严重，因为该地区靠近人为排放源，并且拥有丰富的栖息地，可以有效地将无机汞转化为甲基汞。美国纽约州过去 50 年来的深入研究和监测工作为评估汞暴露对鱼类和野生动物的程度和影响提供了信息。通过综合全州范围内的汞数据，本研究量化了汞暴露的时间趋势、风险的时空模式、栖息地和汞沉积在鱼类和其他野生动物汞暴露空间模式中所起的作用，以及当前监测方法在描述汞暴露的有效性方面的作用。汞趋势。大多数时间趋势是稳定的，但我们发现一些长期采样的鱼类的汞暴露量随着时间的推移显着下降。阿迪朗达克山脉和长岛的汞浓度升高的水生和陆生物种数量最多，反映出全州动物群暴露风险分布不均。在纽约中部和阿迪朗达克山脉检测到水生物种的持续热点。汞浓度升高与开放水域、森林和农村、水生物种发达的栖息地以及陆地物种的开放水域和森林栖息地有关。在大气和当地汞输入驱动的区域中发现了汞持续升高的区域，而栖息地在将这些输入转化为生物暴露方面发挥了重要作用。持续的长期监测对于评估这些模式在土地覆盖、气候和汞排放不断变化的情况下如何继续变化非常重要。