Evidence map›Paper›PMID 23636499›Full record

ArticleEnvironmental monitoring and assessment2013

Variations in the physicochemical characteristics of the Buffalo River in the Eastern Cape Province of South Africa.

Vincent N Chigor, Timothy Sibanda, Anthony I Okoh

Abstract read
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In one paragraph

Article in Environmental monitoring and assessment, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Investigating Industrial Effluent Impact on Municipal Wastewater Treatment Plant in Vaal, South Africa.International journal of environmental research and public health · 2020
    Article
  5. Article
  6. Article
  7. Article
  8. Petroleum Hydrocarbon Profiles of Water and Sediment of Algoa Bay, Eastern Cape, South Africa.International journal of environmental research and public health · 2017
    Article
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Vincent N ChigorApplied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, South Africa. vnchigor@yahoo.com
Timothy Sibanda
Anthony I Okoh

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The physicochemical characteristics of the Buffalo River in the Eastern Cape Province of South Africa were evaluated using standard methods. The assessment was carried out with total of 72 water samples collected from six sites over a 12-month period, from August 2010 to July 2011. Water temperature ranged from 11 to 28 °C, while pH varied from 6.6 to 10.7 and turbidity from 1.7 to 133 NTU. Electrical conductivity, total dissolved solids (TDS) and salinity showed drastic variations (42.3-46,693 μS/cm, 20.3-23,350 mg/l and 0.02-33.8 PSU, respectively) and the significantly (P < 0.05) higher mean values of these parameters recorded at Parkside reflect the influence of seawater at the Buffalo River estuary. The concentrations of other parameters ranged as follows: chloride (3.7-168 mg/l), DO (6.9-11.1), BOD (0.6-9.4), COD (3.7-45.9), nitrite-nitrogen (0.02-0.21), nitrate-nitrogen (1-4.47) and orthophosphate (0.01-1.72). There was a significant positive correlation between water temperature and DO (r = 0.200; P < 0.01). Significant (P < 0.01) positive correlations also existed between TDS and salinity (r = 0.921), COD and each of salinity (r = 0.398), TDS (r = 0.375) and chloride (r = 0.330), nitrate and phosphate (r = 0.323) and BOD and turbidity (r = 0.290). Significant (p < 0.01) inverse relationships existed between DO and each of phosphate (r = -0.295) and nitrate (r = -0.168). We conclude that the Buffalo River water quality deteriorated in the plains, compared with the upper reaches. Urgent measures are needed to safeguard the river in view of the potential health concerns as many households rely solely on the untreated river water.

Indexed as

Environmental MonitoringBiological Oxygen Demand AnalysisNitratesNitritesRiversSouth AfricaWater Pollutants, ChemicalNitratesNitritesWater Pollutants, Chemical

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.