Advertisement
Advertise here Publish your press releases here Sponsor BioPortfolio
Follow us on Twitter Sign up for daily news and research emails Contributors wanted

Temporal variability in water quality parameters-a case study of drinking water reservoir in Florida, USA.

04:17 EDT 23rd April 2014 | BioPortfolio

Summary of "Temporal variability in water quality parameters-a case study of drinking water reservoir in Florida, USA."

Our objective was to evaluate changes in water quality parameters during 1983-2007 in a subtropical drinking water reservoir (area: 7 km(2)) located in Lake Manatee Watershed (area: 338 km(2)) in Florida, USA. Most water quality parameters (color, turbidity, Secchi depth, pH, EC, dissolved oxygen, total alkalinity, cations, anions, and lead) were below the Florida potable water standards. Concentrations of copper exceeded the potable water standard of <30 μg l(-1) in about half of the samples. About 75 % of total N in lake was organic N (0.93 mg l(-1)) with the remainder (25 %) as inorganic N (NH(3)-
N:
0.19, NO(3)-
N:
0.17 mg l(-1)), while 86 % of total P was orthophosphate. Mean total N/P was <6:1 indicating N limitation in the lake. Mean monthly concentration of chlorophyll-a was much lower than the EPA water quality threshold of 20 μg l(-1). Concentrations of total N showed significant increase from 1983 to 1994 and a decrease from 1997 to 2007. Total P showed significant increase during 1983-2007. Mean concentrations of total N (n = 215; 1.24 mg l(-1)) were lower, and total P (n = 286; 0.26 mg l(-1)) was much higher than the EPA numeric criteria of 1.27 mg total N l(-1) and 0.05 mg total P l(-1) for Florida's colored lakes, respectively. Seasonal trends were observed for many water quality parameters where concentrations were typically elevated during wet months (June-September). Results suggest that reducing transport of organic N may be one potential option to protect water quality in this drinking water reservoir.

Affiliation

Soil and Water Quality Laboratory, Gulf Coast Research and Education Center, University of Florida, 14625 C.R. 672, Wimauma, FL, 33598, USA, gstoor@ufl.edu.

Journal Details

This article was published in the following journal.

Name: Environmental monitoring and assessment
ISSN: 1573-2959
Pages:

Links

PubMed Articles [34464 Associated PubMed Articles listed on BioPortfolio]

Evaluation of spatial-temporal variations and trends in surface water quality across a rural-suburban-urban interface.

Water quality degradation is often a severe consequence of rapid economic expansion in developing countries. Methods to assess spatial-temporal patterns and trends in water quality are essential for g...

Spatial and temporal distribution of Cryptosporidium and Giardia in a drinking water resource: Implications for monitoring and risk assessment.

Because of their significant public health impact, waterborne Cryptosporidium and Giardia have been monitored in surface water in order to assess microbial quality of water bodies used for drinking wa...

Why "improved" water sources are not always safe.

Existing and proposed metrics for household drinking-water services are intended to measure the availability, safety and accessibility of water sources. However, these attributes can be highly variabl...

Effect of arsenic contaminated drinking water on human chromosome: a case study.

Arsenic contamination of ground water has become a serious problem all over the world. Large number of people from Uttar Pradesh, Bihar and West Bengal of India are suffering due to consumption of ars...

Exposure variability of fosfomycin administered to pigs in food or water: Impact of social rank.

The objective of this study was to document the effect of social ranking on the internal exposure of pigs to an antibiotic (fosfomycin) administered either in food or in drinking water. Signs of aggre...

Clinical Trials [3439 Associated Clinical Trials listed on BioPortfolio]

Water Induced Thermogenesis in Obese Children

Drinking water is largely advocated for obesity prevention and management. Recent studies have suggested that water has a thermogenic effect, this has not been examined in children. In thi...

Bladder Cancer Case Control Study of Arsenic in Water

This study is examining the relationship between ingested arsenic and bladder cancer in two areas of California where a large percentage of the population was exposed to drinking water con...

Diagnostic Study of Temporal Arteritis

Despite a large and growing body of knowledge concerning the diagnosis of temporal arteritis, this potentially crippling disease still requires pathological diagnosis in practically every...

Safe Drinking Water For Households With Infants Born to HIV-Positive Mothers Pilot Study

The purpose of this study is to assess whether children under 2 years and other members of households in which HIV-positive mothers are providing replacement and complementary feeding woul...

Effects of Naturally Silicon-Rich Water on Bone Metabolism in Women

The aim of this research study is to determine by laboratory analyses the effects of drinking silicon-rich water on bone health. This will be determined from blood and urine samples from...

Medical and Biotech [MESH] Definitions

Behaviors associated with the ingesting of water and other liquids; includes rhythmic patterns of drinking (time intervals - onset and duration), frequency and satiety.

Any of several processes in which undesirable impurities in water are removed or neutralized; for example, chlorination, filtration, primary treatment, ion exchange, and distillation. It includes treatment of waste water to provide potable and hygiene water in a controlled or closed environment as well as provision of public drinking water supplies. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

A neurosurgical procedure that removes the anterior TEMPORAL LOBE including the medial temporal structures of CEREBRAL CORTEX; AMYGDALA; HIPPOCAMPUS; and the adjacent PARAHIPPOCAMPAL GYRUS. This procedure is generally used for the treatment of intractable temporal epilepsy (EPILEPSY, TEMPORAL LOBE).

Behaviors associated with the ingesting of alcoholic beverages, including social drinking.

Simultaneous and continuous monitoring of several parameters during sleep to study normal and abnormal sleep. The study includes monitoring of brain waves, to assess sleep stages, and other physiological variables such as breathing, eye movements, and blood oxygen levels which exhibit a disrupted pattern with sleep disturbances.

Search BioPortfolio:
Advertisement
Advertisement