Levels of Pollution at the Sakumo Ramsar Site - 8 Angebote vergleichen

Lieferung aus: Deutschland, Versandkostenfrei.
Von Händler/Antiquariat, The Book Depository EURO [60485773], Slough, United Kingdom.
Language: English Brand New Book ***** Print on Demand *****.The objective of this research was to assess the level of pollution in the Sakumo wetland with emphasis on heavy metals contamination and their distribution in the wetland, which is being polluted from industrial, domestic and sewage effluents. Samples of water, sediment and fish were collected and analyzed for the concentration of heavy metals (arsenic, cadmium, chromium, copper, iron, mercury, nickel and zinc) using atomic absorption spectrophotometry (AAS). The sequence of order of the heavy metals in the water, sediment and fish samples observed in the wetland was as follows: Fe > Mn > Cu >Hg, Mn > Fe> V> Cr > Cu >Zn As >Co > Cd > Hg, Fe > Cu > Mn> V> Hg > Cd respectively. The results showed high levels of copper and managanese in all three samples (water, sediment and fish) however, mercury and cadmium were available in relatively low concentration in the fish samples. Sampled sediment materials revealed highest concentrations of the heavy metals. Fe, Mn, and Zn concentration in fish samples were higher than WHO/FAO recommended values; however, these heavy metals did not pose any immediate health risk to humans.

Lieferung aus: Deutschland, Free shipping.
Levels of Pollution at the Sakumo Ramsar Site: The objective of this research was to assess the level of pollution in the Sakumo wetland with emphasis on heavy metals contamination and their distribution in the wetland, which is being polluted from industrial, domestic and sewage effluents. Samples of water, sediment and fish were collected and analyzed for the concentration of heavy metals (arsenic, cadmium, chromium, copper, iron, mercury, nickel and zinc) using atomic absorption spectrophotometry (AAS). The sequence of order of the heavy metals in the water, sediment and fish samples observed in the wetland was as follows: Fe Mn Cu Hg, Mn Fe V Cr Cu Zn As Co Cd Hg, Fe Cu Mn V Hg Cd respectively. The results showed high levels of copper and managanese in all three samples (water, sediment and fish) however, mercury and cadmium were available in relatively low concentration in the fish samples. Sampled sediment materials revealed highest concentrations of the heavy metals. Fe, Mn, and Zn concentration in fish samples were higher than WHO/FAO recommended values however, these heavy metals did not pose any immediate health risk to humans. Englisch, Taschenbuch.

Von Händler/Antiquariat, Paperbackshop-US [8408184], Secaucus, NJ, U.S.A.
New Book. Shipped from US within 10 to 14 business days. Established seller since 2000. This item is printed on demand.

Von Händler/Antiquariat, Books2Anywhere [190245], Fairford, United Kingdom.
New Book. Shipped from UK. This item is printed on demand.

Von Händler/Antiquariat, English-Book-Service - A Fine Choice [1048135], Waldshut-Tiengen, Germany.
This item is printed on demand for shipment within 3 working days.

Von Händler/Antiquariat, El Pinarillo Books [2488052], Surrey, UK, United Kingdom.
New and in stock. 9/10/2012.

Lieferung aus: Deutschland, Next Day, plus shipping.
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