Microbial water quality and sedimentary faecal sterols as markers of sewage contamination in Kuwait

Lyons, B.P., Devlin, M.J., Abdul Hamid, S.A., Al-Otiabi, A.F. , Al-Enezi, M., Massoud, M.S., Al-Zaidan, A.S., Smith, A.J., Morris, S., Bersuder, P., Barber, J.L., Papachlimitzou, A., and Al-Sarawi, H.A. (2015) Microbial water quality and sedimentary faecal sterols as markers of sewage contamination in Kuwait. Marine Pollution Bulletin, 100 (2). pp. 689-698.

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Abstract

Microbial water quality and concentrations of faecal sterols in sediment have been used to assess the degree of sewage contamination in Kuwait's marine environment. A review of microbial (faecal coliform, faecal streptococci and Escherichia coli) water quality data identified temporal and spatial sources of pollution around the coastline. Results indicated that bacterial counts regularly breach regional water quality guidelines. Sediments collected from a total of 29 sites contained detectable levels of coprostanol with values ranging from 29 to 2420 ng g−1 (dry weight). Hot spots based on faecal sterol sediment contamination were identified in Doha Bay and Sulaibikhat Bay, which are both smaller embayments of Kuwait Bay. The ratio of epicoprostanol/coprostanol indicates that a proportion of the contamination was from raw or partially treated sewage. Sewage pollution in these areas are thought to result from illegal connections and discharges from storm drains, such as that sited at Al-Ghazali.

Item ID: 40805
Item Type: Article (Research - C1)
ISSN: 1879-3363
Keywords: faecal sterols, coprostanol, microbial water quality, Kuwait
Funders: Kuwait Environment Public Authority (KEPA)
Date Deposited: 13 Oct 2015 02:56
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050206 Environmental Monitoring @ 100%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960507 Ecosystem Assessment and Management of Marine Environments @ 100%
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