Odour emissions from anaerobic piggery ponds. 2: Improving estimates of emission rate through recognition of spatial variabilityExport / Share PlumX View Altmetrics View AltmetricsHudson, N., Bell, K. L., McGahan, E., Lowe, S., Galvin, G. and Casey, K. (2007) Odour emissions from anaerobic piggery ponds. 2: Improving estimates of emission rate through recognition of spatial variability. Bioresource Technology, 98 (10). pp. 1888-1897. Full text not currently attached. Access may be available via the Publisher's website or OpenAccess link. Article Link: http://dx.doi.org/10.1016/j.biortech.2006.06.013 AbstractOdour emission rates were measured for seven different anaerobic ponds treating piggery wastes at six to nine discrete locations across the surface of each pond on each sampling occasion over a thirteen month period. Significant variability in emission rates were observed for each pond. Measurement of a number of water quality variables in pond liquor samples collected at the same time and from the same locations as the odour samples indicated that the composition of the pond liquor was also variable. The results indicated that spatial variability was a real phenomenon and could have a significant impact on odour assessment practices. Considerably more odour samples would be required to characterise pond emissions than currently recommended by most practitioners, or regulatory agencies.
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