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Deep soil nitrogen storage slows nitrate leaching through the vadose zone [dataset]
This field study was designed to evaluate how nitrate leaching rates change with depth and how seasonal and annual variation in management (e.g., fertilizer input amount and... -
The reduction of summer sulfate and switch from summer to winter PM2.5...
These four files each contain 24-hour PM2.5 concentrations collected between 2000-2015. This dataset is associated with the following publication: Chan, E., B. Gantt, and S.... -
EPA Long-Term Monitoring of Acidified Surface Waters
This dataset compiles surface water chemistry data from 1980 to 2020 and will be updated annually with an approximate lag time of one year. Data are collected in four regions in... -
Water Quality data CP
The Water Quality Dataset contains field and laboratory data that were collected at a field-scale permeable reactive barrier. Environmental samples were collected from... -
Positive correlation between wood δ15N and stream nitrate in two temperate...
This dataset provides time series of tree ring N isotopes for individual trees and corresponding time series of temperature, precipitation, atmospheric N deposition, atmospheric... -
Safe Drinking Water Information System (SDWIS) Federal Reports Advanced Search Tool
A database where EPA has compiled data on public drinking water systems and whether they have certain drinking water violations. This data is collected by the states and given...