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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 turbidity (NTU), (n=15) at each sampling site.
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f5-ijerph-02-00094: Mean values of turbidity (NTU), (n=15) at each sampling site.

Mentions: Visual observations determined that Lake Claiborne was the clearest of the water sample sites. Further testing of the turbidity determined the levels to be similar to the visual observations in that Lake Claiborne also had the lowest turbidity level of 15.0 ± 2.1 NTUs. As seen in Figure 5, the other sampling sites had turbidity levels that were very similar to one another but were greater than that found in Lake Claiborne. Bayou Dorcheat had the highest turbidity level among all of the sampling sites at 40.70 ± 2.20 NTUs. Hill Farm had a level of 30.70 ± 5.30 NTUs and Ray Pond had a turbidity level of 35.47± 7.80 NTUs. Comparisons among mean levels of turbidity revealed highly significant (p<0.0001) variations among sampling sites.


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 turbidity (NTU), (n=15) at each sampling site.
© Copyright Policy
Related In: Results  -  Collection

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

f5-ijerph-02-00094: Mean values of turbidity (NTU), (n=15) at each sampling site.
Mentions: Visual observations determined that Lake Claiborne was the clearest of the water sample sites. Further testing of the turbidity determined the levels to be similar to the visual observations in that Lake Claiborne also had the lowest turbidity level of 15.0 ± 2.1 NTUs. As seen in Figure 5, the other sampling sites had turbidity levels that were very similar to one another but were greater than that found in Lake Claiborne. Bayou Dorcheat had the highest turbidity level among all of the sampling sites at 40.70 ± 2.20 NTUs. Hill Farm had a level of 30.70 ± 5.30 NTUs and Ray Pond had a turbidity level of 35.47± 7.80 NTUs. Comparisons among mean levels of turbidity revealed highly significant (p<0.0001) variations among sampling sites.

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