Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/31490
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dc.contributor.authorBuckerfield, Sarah Jen_UK
dc.contributor.authorQuilliam, Richard Sen_UK
dc.contributor.authorBussiere, Lucen_UK
dc.contributor.authorWaldron, Susanen_UK
dc.contributor.authorNaylor, Larissa Aen_UK
dc.contributor.authorLi, Siliangen_UK
dc.contributor.authorOliver, David Men_UK
dc.date.accessioned2020-07-28T00:01:14Z-
dc.date.available2020-07-28T00:01:14Z-
dc.date.issued2020-11-20en_UK
dc.identifier.other140898en_UK
dc.identifier.urihttp://hdl.handle.net/1893/31490-
dc.description.abstractContamination of surface and groundwater systems with human and animal faecal matter leads to exposure of reliant populations to disease causing micro-organisms. This exposure route remains a major cause of infection and mortality in developing countries, particularly rural regions. To meet the UN's sustainable development goal 6: Ensure availability and sustainable management of water and sanitation for all, we need to identify the key controls on faecal contamination across relevant settings. We conducted a high-resolution spatial study of E. coli concentration in catchment drainage waters over 6 months in a mixed land-use catchment in the extensive karst region extending across impoverished southwest China. Using a mixed effects modelling framework, we tested how land-use, karst hydrology, antecedent meteorological conditions, agricultural cycles, hydrochemistry, and position in the catchment system affected E. coli concentrations. Land-use was the best predictor of faecal contamination levels. Sites in urban areas were chronically highly contaminated, but water draining from agricultural land was also consistently contaminated and there was a catchment wide pulse of higher E. coli concentrations, turbidity, and discharge during paddy field drainage. E. coli concentration increased with increasing antecedent rainfall across all land-use types and compartments of the karst hydrological system (underground and surface waters), but decreased with increasing pH. This is interpreted to be a result of processes affecting pH, such as water residence time, rather than the direct effect of pH on E. coli survival. Improved containment and treatment of human waste in areas of higher population density would likely reduce contamination hotspots, and further research is needed to identify the nature and distribution of sources in agricultural land.en_UK
dc.language.isoenen_UK
dc.publisherElsevier BVen_UK
dc.relationBuckerfield SJ, Quilliam RS, Bussiere L, Waldron S, Naylor LA, Li S & Oliver DM (2020) Chronic urban hotspots and agricultural drainage drive microbial pollution of karst water resources in rural developing regions. Science of The Total Environment, 744, Art. No.: 140898. https://doi.org/10.1016/j.scitotenv.2020.140898en_UK
dc.rightsThis is an open access article distributed under the terms of the Creative Commons CC-BY license (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. You are not required to obtain permission to reuse this article.en_UK
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_UK
dc.subjectDrinking water qualityen_UK
dc.subjectFaecal contaminationen_UK
dc.subjectSpatiotemporal controlsen_UK
dc.subjectKarst water resourcesen_UK
dc.subjectRural developing regionsen_UK
dc.subjectMixed-effects modellingen_UK
dc.titleChronic urban hotspots and agricultural drainage drive microbial pollution of karst water resources in rural developing regionsen_UK
dc.typeJournal Articleen_UK
dc.identifier.doi10.1016/j.scitotenv.2020.140898en_UK
dc.citation.jtitleScience of the Total Environmenten_UK
dc.citation.issn1879-1026en_UK
dc.citation.issn0048-9697en_UK
dc.citation.volume744en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.funderNational Natural Science Foundation of Chinaen_UK
dc.contributor.funderChinese Academy of Sciencesen_UK
dc.contributor.funderNatural Environment Research Councilen_UK
dc.author.emaildavid.oliver@stir.ac.uken_UK
dc.citation.date16/07/2020en_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of Glasgowen_UK
dc.contributor.affiliationUniversity of Glasgowen_UK
dc.contributor.affiliationTianjin University, Chinaen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.identifier.wtid1647858en_UK
dc.contributor.orcid0000-0002-1470-5939en_UK
dc.contributor.orcid0000-0001-7020-4410en_UK
dc.contributor.orcid0000-0001-8937-8381en_UK
dc.contributor.orcid0000-0002-0295-9675en_UK
dc.contributor.orcid0000-0002-6200-562Xen_UK
dc.date.accepted2020-07-09en_UK
dcterms.dateAccepted2020-07-09en_UK
dc.date.filedepositdate2020-07-26en_UK
rioxxterms.apcnot requireden_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionVoRen_UK
local.rioxx.authorBuckerfield, Sarah J|0000-0002-1470-5939en_UK
local.rioxx.authorQuilliam, Richard S|0000-0001-7020-4410en_UK
local.rioxx.authorBussiere, Luc|0000-0001-8937-8381en_UK
local.rioxx.authorWaldron, Susan|en_UK
local.rioxx.authorNaylor, Larissa A|en_UK
local.rioxx.authorLi, Siliang|0000-0002-0295-9675en_UK
local.rioxx.authorOliver, David M|0000-0002-6200-562Xen_UK
local.rioxx.projectProject ID unknown|Natural Environment Research Council|http://dx.doi.org/10.13039/501100000270en_UK
local.rioxx.freetoreaddate2020-07-27en_UK
local.rioxx.licencehttp://creativecommons.org/licenses/by/4.0/|2020-07-27|en_UK
local.rioxx.filename1-s2.0-S0048969720344272-main.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source1879-1026en_UK
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