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Comparative assessment of the physico-chemical and bacteriological qualities of selected streams in Louisiana.

Hill DD, Owens WE, Tchounwou PB - Int J Environ Res Public Health (2005)

Bottom Line: The objective of this research was to compare the chemical/physical parameters and bacterial qualities of selected surface water streams in Louisiana, including a natural stream (control) and an animal waste related stream.Fecal coliforms isolated from these samples were identified to the species level.Chemical analysis was performed following standard test protocols (LaMotte 2002).

View Article: PubMed Central - PubMed

Affiliation: Molecular Toxicology Research Laboratory, NIH-Center for Environmental Health, College of Science, Engineering and Technology, Jackson State University, 1400 Lynch Street, P.O. Box 18540, Jackson, Mississippi, USA.

ABSTRACT
The objective of this research was to compare the chemical/physical parameters and bacterial qualities of selected surface water streams in Louisiana, including a natural stream (control) and an animal waste related stream. Samples were collected and analyzed for fecal coliforms. Fecal coliforms isolated from these samples were identified to the species level. Chemical analysis was performed following standard test protocols (LaMotte 2002). An analysis of biological oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total dissolved solids (TDS), conductivity, pH, temperature, ammonia nitrogen, nitrate nitrogen, iron, copper, phosphate, potassium, sulfate, turbidity, zinc and bacterial levels was performed following standard test protocols as presented in Standard Methods for the Examination of Water and Wastewater [9]. Results of the comparisons of the various surface water streams showed that phosphate levels, according to Mitchell and Stapp, were considered good for Lake Claiborne (control) and Bayou Dorcheat. The levels were found to be .001 mg/L and .007 mg/L respectively. Other streams associated with animal waste, had higher phosphate levels of 2.07 mg/L and 2.78 mg/L, respectively. Conductivity and total dissolved solids (TDS) levels were the lowest in Lake Claiborne and highest in the Hill Farm Research Station stream. It can be concluded from the data that some bacterial levels and various nutrient levels can be affected in water resources due to non-point source pollution. Many of these levels will remain unaffected.

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Mean values of total dissolved solids TDS (mg/L) at each of the sampling sites. Differences in mean levels at sampling sites are highly significant (p<0.001), n=15.
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f4-ijerph-02-00094: Mean values of total dissolved solids TDS (mg/L) at each of the sampling sites. Differences in mean levels at sampling sites are highly significant (p<0.001), n=15.

Mentions: The water flow rate for each of the sites was estimated at being minimal for Hill Research Station stream and Bayou Dorcheat. A static flow rate was noticed for Ray Pond and Lake Claiborne. Total dissolved solids TDS were evaluated at each of the sample sites. As shown in Figure 4, the lowest TDS was associated with Lake Claiborne. This number was noted to be 13.13 ± .01mg/L while the highest TDS was associated with Hill Farm Research Station at 49.07± .8.50 mg/L. The TDS levels for Bayou Dorcheat and Ray Pond 30.80 ± 2.20mg/L and was 21.27 ± 3.20mg/L, respectively. Comparisons of variations between the mean TDS levels for the sampling sites Hill Farm and Lake Claiborne, Hill Farm and Ray Pond and Bayou Dorcheat and Lake Claiborne show highly signicant differences (p<0.001). There were no significant differences in TDS concentrations (p>0.05) between the sampling sites of Bayou Dorcheat and Hill Farm, Bayou Dorcheat and Ray Pond, and Lake Claiborne and Ray Pond.


Comparative assessment of the physico-chemical and bacteriological qualities of selected streams in Louisiana.

Hill DD, Owens WE, Tchounwou PB - Int J Environ Res Public Health (2005)

Mean values of total dissolved solids TDS (mg/L) at each of the sampling sites. Differences in mean levels at sampling sites are highly significant (p<0.001), n=15.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3814702&req=5

f4-ijerph-02-00094: Mean values of total dissolved solids TDS (mg/L) at each of the sampling sites. Differences in mean levels at sampling sites are highly significant (p<0.001), n=15.
Mentions: The water flow rate for each of the sites was estimated at being minimal for Hill Research Station stream and Bayou Dorcheat. A static flow rate was noticed for Ray Pond and Lake Claiborne. Total dissolved solids TDS were evaluated at each of the sample sites. As shown in Figure 4, the lowest TDS was associated with Lake Claiborne. This number was noted to be 13.13 ± .01mg/L while the highest TDS was associated with Hill Farm Research Station at 49.07± .8.50 mg/L. The TDS levels for Bayou Dorcheat and Ray Pond 30.80 ± 2.20mg/L and was 21.27 ± 3.20mg/L, respectively. Comparisons of variations between the mean TDS levels for the sampling sites Hill Farm and Lake Claiborne, Hill Farm and Ray Pond and Bayou Dorcheat and Lake Claiborne show highly signicant differences (p<0.001). There were no significant differences in TDS concentrations (p>0.05) between the sampling sites of Bayou Dorcheat and Hill Farm, Bayou Dorcheat and Ray Pond, and Lake Claiborne and Ray Pond.

Bottom Line: The objective of this research was to compare the chemical/physical parameters and bacterial qualities of selected surface water streams in Louisiana, including a natural stream (control) and an animal waste related stream.Fecal coliforms isolated from these samples were identified to the species level.Chemical analysis was performed following standard test protocols (LaMotte 2002).

View Article: PubMed Central - PubMed

Affiliation: Molecular Toxicology Research Laboratory, NIH-Center for Environmental Health, College of Science, Engineering and Technology, Jackson State University, 1400 Lynch Street, P.O. Box 18540, Jackson, Mississippi, USA.

ABSTRACT
The objective of this research was to compare the chemical/physical parameters and bacterial qualities of selected surface water streams in Louisiana, including a natural stream (control) and an animal waste related stream. Samples were collected and analyzed for fecal coliforms. Fecal coliforms isolated from these samples were identified to the species level. Chemical analysis was performed following standard test protocols (LaMotte 2002). An analysis of biological oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total dissolved solids (TDS), conductivity, pH, temperature, ammonia nitrogen, nitrate nitrogen, iron, copper, phosphate, potassium, sulfate, turbidity, zinc and bacterial levels was performed following standard test protocols as presented in Standard Methods for the Examination of Water and Wastewater [9]. Results of the comparisons of the various surface water streams showed that phosphate levels, according to Mitchell and Stapp, were considered good for Lake Claiborne (control) and Bayou Dorcheat. The levels were found to be .001 mg/L and .007 mg/L respectively. Other streams associated with animal waste, had higher phosphate levels of 2.07 mg/L and 2.78 mg/L, respectively. Conductivity and total dissolved solids (TDS) levels were the lowest in Lake Claiborne and highest in the Hill Farm Research Station stream. It can be concluded from the data that some bacterial levels and various nutrient levels can be affected in water resources due to non-point source pollution. Many of these levels will remain unaffected.

Show MeSH