Occurrence of Trihalomethanes in Chlorinated Waters from Different Sources Used for Urban Supply

Melo, Armindo; Mansilha, Catarina; Margarida, Teixeira; Ferreira, Isabel M.P.L.V.O.

Publication

Occurrence of Trihalomethanes in Chlorinated Waters from Different Sources Used for Urban Supply

2016-09Journal article

dc.contributor.author	Melo, Armindo
dc.contributor.author	Mansilha, Catarina
dc.contributor.author	Margarida, Teixeira
dc.contributor.author	Ferreira, Isabel M.P.L.V.O.
dc.date.accessioned	2017-03-06T16:53:21Z
dc.date.available	2017-03-06T16:53:21Z
dc.date.issued	2016-09
dc.description.abstract	Trihalomethanes (THMs) are the most common disinfection by-products formed by the reaction of chlorine and/or bromide with organic matter. Total THMs in chlorinated treated water are defined as the sum of the concentrations of chloroform (TCM), bromodichloromethane (BDCM), dibromochloromethane (DBCM), and bromoform (TBM). The monitoring of trihalomethanes in distribution tap water collected in from five regions of Portugal, from North to South, in a total of 33 samples, during spring to summer season, is described. Solid phase microextraction coupled to gas chromatography and electron capture detector methodology was applied to determine whether THMs concentrations in urban water supply systems are is in agreement with European Regulations. It was found a great discrepancy in total THMs concentration values, with concentrations varying from 1.8-97.7 μg/L, although the results were below the European parametric value of 100 μg/L. Regarding the Environmental Protection Agency regulations, however, only 97% of samples fulfilled the established criterion of 80 μg/L. and investigate if the individual compounds trihalomethanes content in was also investigated in order to determine if there is observed distribution tap water follows a common or a different THMs pattern in close geographical areas. In the geographical areas under study, mean values of concentrations measured revealed two different clusters: one including the three groups from the North geographical areas, with samples revealing a similar pattern (TCM>BDCM>DBCM>TBM), and another including the two groups from South with a different THMs pattern (DBCM>BDCM>TCM>TBM). A great degree of variation in the concentrations of THMs in tap water was observed, although the results the total THMs concentrations were below the European parametric value (100 μg/L). Mean results of samples grouped by five geographical areas revealed a similar pattern in samples collected from North and Centre TCM>BDCM>DBCM>TBM, whereas samples from South presented a different pattern, DBCM>BDCM>TCM>TBM. The origin of raw water (surface or groundwater) seems to influence this different pattern formation of brominated compounds.	pt_PT
dc.description.sponsorship	This work received financial support from the European Union (FEDER funds POCI/01/0145/FEDER/007265) and National Funds (FCT/MEC, Fundação para a Ciência e Tecnologia and Ministério da Educação e Ciência) under the Partnership Agreement PT2020 UID/QUI/50006/2013. One of the authors (A. Melo) wishes to thank the Fundação Ciência Tecnologia grant SFRH/BPD/86898/2012.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Food Science and Technology. 2016;4(4):57-63. doi:10.13189/fst.2016.040402	pt_PT
dc.identifier.doi	10.13189/fst.2016.040402	pt_PT
dc.identifier.issn	2331-513X
dc.identifier.uri	http://hdl.handle.net/10400.18/4512
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	Horizon Research Publishing
dc.relation.publisherversion	http://www.hrpub.org/download/20160930/FST2-11107319.pdf	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by-nc/4.0/	pt_PT
dc.subject	Chlorinated Water	pt_PT
dc.subject	Drinking Water Analysis	pt_PT
dc.subject	Disinfection By-products (DBPs)	pt_PT
dc.subject	Trihalomethanes (THMs)	pt_PT
dc.subject	Água e Solo	pt_PT
dc.title	Occurrence of Trihalomethanes in Chlorinated Waters from Different Sources Used for Urban Supply	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.awardURI	info:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.citation.endPage	63	pt_PT
oaire.citation.issue	4	pt_PT
oaire.citation.startPage	57	pt_PT
oaire.citation.title	Food Science and Technology	pt_PT
oaire.citation.volume	4	pt_PT
oaire.fundingStream	5876
project.funder.identifier	http://doi.org/10.13039/501100001871
project.funder.name	Fundação para a Ciência e a Tecnologia
rcaap.rights	openAccess	pt_PT
rcaap.type	article	pt_PT
relation.isProjectOfPublication	d7883dc7-6335-4f26-8bd0-e2ea4bb07c07
relation.isProjectOfPublication.latestForDiscovery	d7883dc7-6335-4f26-8bd0-e2ea4bb07c07