Spatio-temporal trends of nutrients and physico-chemical parameters on lake ecosystem and fisheries prior to onset of cage farming and re-opening of the Mbita passage in the Nyanza Gulf of Lake Victoria

This study is aimed at assessing the ecological health condition of River Hadejia. The specific objectives are to; determine the monthly variation of the Physico-chemical parameters of River Hadejia. The physicochemical analysis carried out on the water samples are: pH, temperature, Electrical Conductivity, TDS, Turbidity, Nitrate, Phosphate, DO, BOD, Transparency, Depth and flow velocity which were determined by standard methods. The results of Physico-chemical parameters obtained were subjected to ANOVA using statistical package software, the mean conductivity values range between (104-127 μS/cm). Nitrate in this study ranged from 0.04–0.80 mg/l and Station 3 had the highest nitrate value. The mean turbidity values obtained from the water samples of River Hadejia ranges from 124.56±11.06-149.52±23.11. Moreover, the temperature of Hadejia River varied from 13ºC to 28ºC. The highest temperature was in November at Station 1 while the lowest was recorded in February at station 1 which may be due to cold weather of the morning time.

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Spatio-temporal variations in physico-chemical parameters and potentially harmful elements (PHEs) of Uchalli Wetlands Complex (Ramsar site), Pakistan

Environmental Science and Pollution Research ◽

10.1007/s11356-018-3240-3 ◽

2018 ◽

Vol 25 (33) ◽

pp. 33490-33507 ◽

Cited By ~ 1

Author(s):

Sumera Gull Bhatti ◽

Amtul Bari Tabinda ◽

Faisal Yasin ◽

Abdullah Yasar ◽

Hamza Islam Butt ◽

...

Keyword(s):

Temporal Variations ◽

Ramsar Site ◽

Chemical Parameters ◽

Potentially Harmful Elements ◽

Physico Chemical ◽

Spatio Temporal

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Assessment of Spatio-temporal levels of pollution parameters due to dumpsite leachate in Lagos, Southwest Nigeria

FUOYE Journal of Engineering and Technology ◽

10.46792/fuoyejet.v6i1.593 ◽

2021 ◽

Vol 6 (1) ◽

Author(s):

Geoffrey E Nwosu ◽

Adedayo A Badejo ◽

Adebola A Adekunle ◽

Olayemi J Adeosun

Keyword(s):

Information System ◽

Spatial Distribution ◽

Geographic Information System ◽

Chemical Parameters ◽

Distribution Maps ◽

Physico Chemical ◽

Laboratory Results ◽

Southwest Nigeria ◽

Spatio Temporal ◽

Groundwater Wells

This study is on the assessment of spatio-temporal levels of physico-chemical parameters of groundwater in domesticwells located at points around some selected dumpsite due to dumpsite leachate on groundwater pollution. Three dumpsites: Orile (O); Solous 3 (S3) and Solous 1 (S1). Leachate from the respective dumpsites and water from the 10 select wells within 1 km radius of each dumpsites were sampled and analyzed in the laborator. .Spatial distribution maps of the parameters were generated using Geographic Information System and ArchMap 10.5. Laboratory results revealed that water in domestic wells were deteriorated due to the percolation of leachate. Spatial analysis revealed that pollution of groundwater was higher within a distance of 345 m from the dumpsites and decreases as the distance increases from the dumpsites. The leachate concentration of Cl, SO4, COD and BOD5 from O; TDS, and EC from S3; Cr and Pb from S1 dumpsites respectively were above WHO leachate disposal values. The study showed that O impacted more on groundwater quality than S3 and S1. It is recommended that water from these wells should not used without treatment.Keywords: Leachate, dumpsite, groundwater, wells, pollution.

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Spatio-temporal distribution of zooplankton and physico-chemical conditions of Wasai Reservior, Kano State, Nigeria

Bayero Journal of Pure and Applied Sciences ◽

10.4314/bajopas.v12i1.30s ◽

2020 ◽

Vol 12 (1) ◽

pp. 186-192

Author(s):

I.H. Isyaku ◽

S. Ibrahim

Keyword(s):

Correlation Coefficient ◽

Pearson Correlation ◽

Oxygen Demand ◽

Temporal Distribution ◽

Mean Value ◽

Strong Positive Correlation ◽

Chemical Parameters ◽

Wet Season ◽

Physico Chemical ◽

Spatio Temporal

A study of spatio-temporal distribution of zooplanktonic community in relation to physico-chemical water condition of Wasai Reservoir was carried out between March and October, 2018. Three sampling sites selected for the purpose of this study were based on different human activities taking place in the areas like fishing, sand collection, washing etc. Nine physico-chemical and biological parameters were determined on fortnight basis 8:00 to 10:00am using standard methods. The result revealed that temperature, pH, Electrical conductivity, Total dissolved solids, Dissolved oxygen, Biochemical oxygen demand, transparency, nitrate and phosphate ranged from 24.4 to 29.1°C, 6.4 to 8.4, 353.3 to 846.6µS/cm, 264.3 to 602.8mg/L, 6.7 to 10.9mg/L, 2.8 to6.8mg/L, 5.6 to 12.3cm, 0.12 to 0.55mg/L and 0.08 to 0.22mg/L respectively. A total of thirteen (13) species of zooplankton were identified from the reservoir out of which three (3) belong to the class copepoda with a highest mean value of 37.67 recorded in May and lowest, 8.88 in October. Five species belong to the class Rotifera with a highest mean of 2.93 recorded in March and lowest in June (0.80). Similarly five species belong to the class Cladocera, with highest mean of 3.40 in April and lowest (0.27) in June and October respectively. The result showed seasonal variation in zooplankton species, as thier distribution increased in the dry season than in wet season, primarily due to the increase in photic depth of the water. Pearson correlation coefficient was used to determine the relationship between zooplankton and physico-chemical parameters. The correlation coefficient of physico-chemical parameters and zooplankton of the reservoir revealed strong positive correlation between zooplankton, EC, TDS, pH, Temperature and transparency at (P<0.05)while negative correlation exist between zooplankton, BOD5, DO, Nitrate and Phosphate at (P<0.05). Keywords: Distribution, Diversity, Reservoir, Wasai, Zooplankton.

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