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Details van artikel 5 van 62 gevonden artikelen
| Titel: |
Assessment of River Ravi for the Physico-chemistry and Heavy Metals Toxicity of Water |
| Auteur: |
Ghazanfar Mahmood M. Javed M. Hassan |
| Verschenen in: |
Pakistan journal of biological sciences |
| Paginering: | Jaargang 3 (2000) nr. 11 pagina's 1962-1964 |
| Jaar: |
2000 |
| Inhoud: |
The water was alkaline throughout the stretch under study. The electrical conductivity of water at Hudiara nulla was the maximum due to the input of large amounts of salts and other nutrients in this tributary. Dissolved oxygen contents were significantly lower at Farrukhabad nulla, Munshi hospital nulla, Bakar mandi nulla and Hudiara nulla than rest of the sampling stations. These significantly low values of dissolved oxygen corresponded inversely with the metal ion concentrations in water. There were significant variations among different sampling stations for heavy metals toxicity and physico-chemical variables viz. Total hardness, water temperature, pH and electrical conductivity. The variable significance of different parameters with positive and negative partial regression coefficients at different sampling stations were due to the difference of these stations for metals toxicity levels. On the whole, both zinc and iron toxicities in water were positively and significantly dependent on water temperature while negative but significant on pH of water. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 62 gevonden artikelen
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