Warning: strtotime() [function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/New_York' for 'EDT/-4.0/DST' instead in /home/eerl/public_html/lib/ScoutLib/ApplicationFramework.php on line 1126

Warning: Cannot modify header information - headers already sent by (output started at /home/eerl/public_html/lib/ScoutLib/ApplicationFramework.php:1126) in /home/eerl/public_html/lib/ScoutLib/ApplicationFramework.php on line 158
the Environmental and Energy Resources Library - Probability of Nitrate Contamination of Recently Recharged Ground Waters in the Conterminous United States Skip Navigation

the Environmental and Energy Resources Library

Home Browse Resources Get Recommendations Forums About Help Advanced Search

Probability of Nitrate Contamination of Recently Recharged Ground Waters in the Conterminous United States

A new logistic regression (LR) model was used to predict the probability of nitrate contamination exceeding 4 mg/L in predominantly shallow, recently recharged ground waters of the United States. The new model contains variables representing (1) N fertilizer loading (p < 0.001) , (2) percent cropland-pasture (p < 0.001), (3) natural log of human population density (p < 0.001), (4) percent well-drained soils (p < 0.001), (5) depth to the seasonally high water table (p 0.83.

Cumulative Rating: (not yet rated)
Date Of Record Release 2010-01-21 15:28:04
Description A new logistic regression (LR) model was used to predict the probability of nitrate contamination exceeding 4 mg/L in predominantly shallow, recently recharged ground waters of the United States. The new model contains variables representing (1) N fertilizer loading (p < 0.001) , (2) percent cropland-pasture (p < 0.001), (3) natural log of human population density (p < 0.001), (4) percent well-drained soils (p < 0.001), (5) depth to the seasonally high water table (p 0.83.
Classification
Resource Type
Format
Subject
Source United States Geological Survey
Keyword Soil decontamination, Ground water
Date Of Record Creation 2010-01-21 15:22:44
Education Level
Date Last Modified 2010-01-21 15:28:04
Creator Bernard T. Nolan, Kerie J. Hitt, Barbara C. Ruddy
Language English
Date Record Checked: 2010-01-20 00:00:00 (W3C-DTF)

Log In:





Mission
EERL's mission is to be the best possible online collection of environmental and energy sustainability resources for community college educators and for their students. The resources are also available for practitioners and the public.

EERL & ATEEC
EERL is a product of a community college-based National Science Foundation Center, the Advanced Technology Environmental and Energy Center (ATEEC), and its partners.

Contact ATEEC 563.441.4087 or by email ateec@eicc.edu