Natural gradient, lakebed tracer tests using nitrite in a nitrate-contaminated groundwater discharge zone in Ashumet Pond, Massachusetts

The U.S. Geological Survey Toxic Substances Hydrology Program at Cape Cod has been investigating the fate and transport of a treated-wastewater, groundwater...位于科德角的美国地质调查局（U.S. Geological Survey）有毒物质水文计划，长期以来一直在研究处理后废水在地下水中的归趋与迁移……