An assessment of the replicability of a standard and modified sanitary risk protocol for groundwater sources in Greater Accra

dc.contributor.authorYentumi, W.
dc.contributor.authorDzodzomenyo, M.
dc.contributor.authorSashie-Doe, K.
dc.contributor.authorWright, J.
dc.date.accessioned2019-05-21T14:53:12Z
dc.date.available2019-05-21T14:53:12Z
dc.date.issued2019-02
dc.description.abstractSanitary risk inspection, the systematic observation of contamination hazards, is often used to manage safety of water sources such as wells and boreholes. However, the replicability of sanitary risk inspections undertaken by different observers has not been studied. This study aimed to assess the replicability of sanitary risk inspections by two different observers in urban and peri-urban neighbourhoods of Greater Accra, Ghana. Two observers independently used a standard protocol to record contamination hazards around 62 groundwater sources, additionally recording urban-specific hazards such as damaged sewage pipes via a modified protocol. We calculated risk scores as the proportion of hazards observed at each source, separately for each observer. Linn’s concordance correlation coefficient indicated very high agreement between the two observers’ risk scores (n = 62; c = 0.949, 95% confidence limits 0.917–0.968). However, risk scores from urban-specific observations were uncorrelated with those from the standard protocol (r = 0.11, p = 0.41 for observer 1; r = 0.16, p = 0.22 for observer 2). Ours is the first study of replicability of sanitary risk observations and suggests high inter-observer agreement. However, urban contamination hazards were not captured using the standard protocol. In the future, assessment of inter-observer agreement and observations of urban-specific hazards could be incorporated into nationwide or regional sanitary risk surveys.en_US
dc.identifier.citationYentumi, W., Dzodzomenyo, M., Sashie-Doe, K. et al. Environ Monit Assess (2019) 191: 59. https://doi.org/10.1007/s10661-018-7174-5en_US
dc.identifier.otherhttps://doi.org/10.1007/s10661-018-7174-5
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/30180
dc.language.isoenen_US
dc.publisherEnvironmental Monitoring and Assessmenten_US
dc.subjectSanitary risk inspectionen_US
dc.subjectInter-observer agreementen_US
dc.subjectGroundwateren_US
dc.subjectReplicabilityen_US
dc.subjectGhanaen_US
dc.titleAn assessment of the replicability of a standard and modified sanitary risk protocol for groundwater sources in Greater Accraen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
An assessment of the replicability of a standard and modified sanitary risk protocol for groundwater sources in Greater Accra.pdf
Size:
1.92 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.6 KB
Format:
Item-specific license agreed upon to submission
Description: