An overview of nitrate sources and operating processes in ...

Application of Classification-Tree Methods to Identify Nitrate Sources ...

Nitrate in ground water has been known to be a operations, particularly with respect to hog production, potential human health problem for more than 50.

Using 17 O to Investigate Nitrate Sources and Sinks in a Semi-Arid ...

We apply a triple isotope approach for nitrate that utilizes Δ 17 O as a conservative tracer, in combination with δ 18 O and δ 15 N, to assess source/sink ...

Addressing Nitrate in California's Drinking Water - UC ANR

2 Sources of Groundwater Nitrate. 2 .1 Nitrogen Cycle: Basic Concepts ... A summary of existing funding sources to address problems related to nitrate in ...

Quantification of Nitrate Sources and Its Spatial Heterogeneity by ...

The isotopic composition of nitrate is affected by the fractionation of biogeochemical processes such as ammonification, nitrification, and ...

NITRATE - Wisconsin DNR

Normally, nitrate levels in groundwater are below 2 parts per million where pollution sources are absent. Higher levels suggest contamination from agricultural.

Nitrate removal from groundwater: a review of natural and ...

However, other significant sources of nitrate pollution of groundwater include: manure pools, industrial discharges, leaky septic and sewer ...

5.7 Nitrates | Monitoring & Assessment | US EPA

Nitrates from land sources end up in rivers and streams more quickly than other nutrients like phosphorus. This is because they dissolve in water more readily ...

A critical assessment of widely used techniques for nitrate source

An overview of. 516 nitrate sources and operating processes in arid and semiarid aquifer systems. Sci. Total. 517. Environ. https://doi.org/10.1016/j.scitotenv ...

Contamination levels of water sources and the associated nitrate ...

An overview of nitrate sources and operating processes in arid and semiarid aquifer systems. ... Non-agricultural sources of groundwater nitrate: a review ...

Nitrate in Well Water - MN Dept. of Health

Nitrate is a compound that occurs naturally and also has many human-made sources. Nitrate is in some lakes, rivers, and groundwater in Minnesota. When nitrate ...

Nitrates in Drinking Water - Penn State Extension

Nitrates are naturally occurring. All rainfall and groundwater aquifers contain some nitrate-nitrogen. However, contaminated rural water ...

Groundwater Nitrate Sources and Contamination in the Central Valley

Nitrate is a naturally occurring form of nitrogen, but is also created in areas with excess fertilizer, manure, urban and food processing waste ...

[PDF] Using ¹⁷O to investigate nitrate sources and sinks in a semi ...

An overview of nitrate sources and operating processes in arid and semiarid aquifer systems. M. GutiérrezR. BiagioniM. Alarcón-HerreraBertha A Rivas-Lucero.

Sources of nitrate in a heavily nitrogen pollution bay in Beibu Gulf ...

The heavy nitrate pollution in the lower bay mainly originated from sewage and manure (54%), followed by soil N (26%) and fertilizer (17%).

The use of Hydrochemistry to Identify Potential Processes Operating ...

To determine sources responsible for elevated nitrate concentrations in the SMB aquifer mass-balance and reaction-path models (NETPATH and PHREEQE) were used to ...

MF857 Nitrate and Groundwater - KDHE

About 40 public water supplies in Kansas have obtained an alternative water source, drilled new wells, installed treatment equip- ment, or are working on plans ...

Nitrogen in Minnesota Surface Waters

Page 1. z c. Nitrogen in Minnesota Surface Waters. Conditions, trends, sources ... A Review of Published Studies. 3. B5-2 Nitrogen Transport and ...

Nitrate in groundwater | European Environment Agency's home page

Around 30% of surface water and 80% of marine waters are eutrophic . Several Directives address nitrogen losses to the environment. The ...

Nitrogen Sources and Loading to Groundwater

... Processes of the Nitrogen Cycle ... Nitrogen Sources and Loading to Groundwater. 1. Summary. Nitrate loading to ...

Nitrate attenuation in groundwater

Non-agricultural sources of groundwater nitrate: a review and case study. Water Res. 39. (1), 3–16. West, J.M., Chilton, P.J., 1997. Aquifers ...