HOME >> BIOLOGY >> NEWS
Agriculture and urban activities impact water quality in the South Platte River Basin

Although agriculture and urban activities have substantially affected water quality in several areas of the South Platte River Basin, concentrations of pesticides and volatile organic chemicals (VOCs), such as MTBE, are generally below levels of concern for human health, according to the results of a 5-year investigation of water quality by the U.S. Geological Survey.

This study was among the first 20 studies conducted by the USGS as part of the National Water-Quality Assessment (NAWQA) Program to determine the status and trends, and understand the natural and human factors that affect water-quality conditions across the nation.

"From the standpoint of human health in agricultural areas, we were most concerned about nitrate and pesticides in local drinking water," said Kevin Dennehy, USGS hydrologist in charge of the study. "While we found pesticides in 29 out of the 30 wells sampled, the concentrations were low throughout the agricultural land use area, and concentrations generally were below the regulatory criteria for each of the individual pesticides."

Surface- and ground-water resources in the Denver metropolitan area are susceptible to contamination from pesticides and VOCs. All surface-water samples collected at two urban sites contained at least one pesticide, and water from 90 percent of the wells in the shallow alluvial aquifer contained at least one pesticide. VOCs were detected in 86 percent of the wells sampled from the shallow alluvial aquifer. Sixty-two percent of the samples had more than one VOC present.

The most frequently detected VOC was methyl tert-butyl ether (MTBE), a gasoline additive used to reduce carbon monoxide emissions from vehicles during winter. Although pesticide and VOC concentrations generally were small, their widespread occurrence is a concern. Currently, neither surface nor ground water from t
'"/>

Contact: Kevin F. Dennehy
kdennehy@usgs.gov
(303)236-4882 X312
United States Geological Survey
16-Apr-1998


Page: 1 2 3 4 5

Related biology news :

1. Agriculture presents common ground for rural, urban people
2. Food & Agriculture Biosecurity Initiative announced by incoming executive dean at Rutgers
3. Agriculture linked to red-legged frog decline in California
4. USGS Says Central Columbia Plateau Water Quality Impaired by Agriculture, But Some Good News
5. National Laboratory Known For Environmental Technology Directing Attention On Solving Agriculture And Food Processing Problems
6. New Arizona State center brings science to policy on issues of water resources and urban growth
7. Diabetics face fewer healthy food choices in some urban areas
8. Better living through urban ecology
9. Warmer weather, human disturbances interact to change forests
10. Gene at root of urban air pollutions lung effects
11. Edible urban plants found to contain lead

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/29/2019)... ... March 28, 2019 , ... In the development of biosimilars, ... a path for this task. Despite this uncertainty, several manufacturers have been successful and ... the first part of this webinar, learn how analytical similarity is achieved in biosimilars ...
(Date:3/27/2019)... ... 2019 , ... Evan Holden , a shareholder in the Atlanta ... at the National Academy of Sciences (NAS) Roundtable on Biomedical Engineering Materials Applications (BEMA), ... firm’s award-winning Pharmaceutical, Medical Device & Health Care Litigation Practice , addressed, “Medical ...
(Date:3/25/2019)... ... 25, 2019 , ... Researchers have found multiple applications for ... came into use by the scientific community. Keck Graduate Institute (KGI) Assistant Professor ... combine the power of CRISPR’s nucleic acid targeting with the ultra sensitivity of ...
Breaking Biology News(10 mins):
(Date:4/8/2019)... , ... April 08, 2019 , ... US Capital ... a $15 million preferred equity investment in the privately held pharmaceutical company, S1 Biopharma ... drug, Lorexys, is targeted at female hypoactive sexual dysfunction disorder and is ready to ...
(Date:4/4/2019)... ... 03, 2019 , ... LeadingBiotech, an exclusive event series bringing ... its Boston CEO conference to be held May 28-29, 2019 at Boston’s Four ... high-level panels and discussions from past, present and future change-makers. , ...
(Date:3/27/2019)... ... ... In honor of National Nutrition Month, Lajollacooks4u has collaborated with the San Diego ... This month, Chef Jodi Abel appeared on two segments on KUSI’s Good Morning ... addressed the nutritional value of USDA’s MyPlate, a nutrition guide that simplifies the somewhat ...
(Date:3/23/2019)... , ... March 22, 2019 , ... ... LenS3 Multi-Angle Light Scattering (MALS) detector , offering a revolutionary approach for ... polymers, polysaccharides, proteins, and biopolymers. A novel optical design, a unique cell-block assembly, ...
Breaking Biology Technology:
Cached News: