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dc.contributor.authorComber, SDWen
dc.contributor.authorGardner, MJen
dc.contributor.authorEllor, Ben
dc.date.accessioned2019-03-28T07:47:26Z
dc.date.issued2019-02-11en
dc.identifier.issn0959-3330en
dc.identifier.urihttp://hdl.handle.net/10026.1/13548
dc.description.abstract

Results are presented for 170 wastewater treatment works sites (20 per substance in influent, effluent and 36 per substance in river water upstream and downstream of the WwTW discharge) over a period of two years between 2015 and 2017; this comprises data for approximately 3000 samples for effluent and 6000 for river samples taken downstream of effluent discharges. Seasonal trends in contaminant concentrations for several substances are reported. Two clear patterns of seasonal variation are proposed over and above all of the variables associated with environmental data including process technology, dilution and geography. Firstly, variation of riverine concentrations caused by seasonal fluctuations in river flow (sewage flow being relatively consistent) resulting in summer maxima and winter minima. Alternatively, variation is observed that is attributable to the improved performance of wastewater treatment processes under warmer conditions. This leads to the lowest concentrations in autumn when surface water/sewage treatment temperatures tend to peak. Seasonality for trace contaminants is more difficult to characterise than that of sanitary parameters owing to the higher variability in the concentration of the substances of interest. The data also provide an insight into the amplitude of such variations. This makes it possible to assess the likely effects of seasonality and its impact on aquatic life. For example, the existence of seasonality (perhaps due only to dilution effects) might be demonstrated, but the amplitude might be too small in relation to the potential ecotoxicological effects to be of any consequence.

en
dc.format.extent1 - 15en
dc.language.isoenen
dc.publisherTaylor & Francisen
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en
dc.subjectPriority chemicalsen
dc.subjecteffluentsen
dc.subjectriversen
dc.subjectseasonalityen
dc.subjectwater qualityen
dc.titleSeasonal variation of contaminant concentrations in wastewater treatment works effluents and river waters.en
dc.typeJournal Article
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/30741609en
plymouth.journalEnvironmental Technologyen
dc.identifier.doi10.1080/09593330.2019.1579872en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/BEACh
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2019-01-30en
dc.rights.embargodate2020-02-11en
dc.identifier.eissn1479-487Xen
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.1080/09593330.2019.1579872en
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en
rioxxterms.licenseref.startdate2019-02-11en
rioxxterms.typeJournal Article/Reviewen


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