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The effects of emergency milk discharges on water quality in the Waikato and Waipa rivers / J.C. Rutherford ... et al.

Contributor(s): Rutherford, J.C. (NIWA. Hamilton) | Nagels, J.W. (NIWA. Hamilton) | McBridge, G.B. (NIWA. Hamilton) | Water Quality Centre (Hamilton, N.Z.).
Material type: materialTypeLabelBookSeries: Internal report / Water Quality Centre ; 79/23.Publisher: 1979Description: 72 p.Subject(s): MILK | DISPOSAL | EMERGENCIES | WAIKATO RIVER | NEW ZEALAND | WATER QUALITY In: Internal report / Water Quality Centre, HamiltonSummary: The results and preliminary interpretation are given of sampling carried out shortly after two NZCDC factories made emergency discharges of large quantities of milk into the Waikato and Waipa rivers in March 1979. BOD, COD and DO impacts were discernible but small in the Waikato river but severe deoxygenation occurred in the Waipa river with an attendent fish kill. The impact on benthic invertebrates was less severe than expected with only chironomid larvae noticeable for their absence after the milk spill.
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JOURNAL JOURNAL WELLINGTON
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STACK NO. 79/23 1 Available J015149

The results and preliminary interpretation are given of sampling carried out shortly after two NZCDC factories made emergency discharges of large quantities of milk into the Waikato and Waipa rivers in March 1979. BOD, COD and DO impacts were discernible but small in the Waikato river but severe deoxygenation occurred in the Waipa river with an attendent fish kill. The impact on benthic invertebrates was less severe than expected with only chironomid larvae noticeable for their absence after the milk spill.

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