Effect of point-of-use, activated carbon filters on the bacteriological quality of rural groundwater supplies

Article Abstract:

Point-of-use, powdered activated carbon (PAC) filters reduce the bacterial content of groundwater supplies only when the tap is left open for sometime. PAC filters decrease the heterotrophic-plate-count (HPC) and the quantity of coliforms in water, though they can be detected in some samples. Water kept stagnant overnight or longer shows an increase in the level of HPC bacteria despite the use of filters. The tap should be left open for a few minutes before using to take the complete advantage of the PAC treatment.

Water, Aquatic microbiology, Marine bacteria, Filters (Separation)

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Occurence of fumonisin in forage grass in New Zealand

Article Abstract:

An investigation was conducted to determine the presence of fumonisin in forage grass, as a preliminary attempt to explain the occurrence of an idiopathic disease among Canadian wapiti and wapiti-red deer hybrids raised in New Zealand grasslands. The results showed a significant amount of fumonisin B1 and its methyl esters in 4 of 40 grassland samples. However, the association between the presence of fumonisin and the occurrence of the idiopathic disease has not yet been ascertained.

Diseases, Identification and classification, Red deer, Mycotoxins, Elk, Elk (Wapiti), Forage plants

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