{"id":"62fe92d8-db54-4285-9617-573e77a55c4b","uri":"https://catalogue.ceh.ac.uk/id/62fe92d8-db54-4285-9617-573e77a55c4b","type":"dataset","title":"Physicochemical parameters of Chennai and Pondicherry water samples near antimicrobial manufacturing sites, India, 2023-2024","description":"These datasets contain information about the physicochemical properties of water samples taken from Pondicherry and Chennai in 2023 and 2024. Water samples were collected from river, lake, canal and tank water bodies in Pondicherry and Chennai, with locations selected due to their proximity to antimicrobial manufacturing sites. The physicochemical properties of each sample were analysed to determine water quality at each site and how this may be impacted by local antimicrobial pollution. Variables such as; temperature, oxidation reduction potential, salinity, pH, dissolved oxygen content, conductivity, resistivity, total dissolved solids, atmospheric pressure and seawater sigma were accounted for.","metadataDate":"2026-03-09T17:30:25","resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/62fe92d8-db54-4285-9617-573e77a55c4b"},{"code":"10.5285/62fe92d8-db54-4285-9617-573e77a55c4b","codeSpace":"doi:"}],"lineage":"Samples were collected following a standardized operating procedure mutually agreed upon by the collaborating partners. For water samples, collection was performed at depths ranging from 1 to 5 meters using a sterile container attached to a pulley system. Control samples were collected from upstream sites selected to represent areas unaffected by pollution from manufacturing sources.  All samples were collected in triplicates to ensure reproducibility and statistical reliability with composite samples created from three sampling points in each location. Duplicate samples were also randomly collected as part of quality control. \n\nParameters were measured in situ using a portable multiparameter Aquaprobe AP-200 with a GPS Aquameter (Aquaread AP 2000).  Initial data entries were recorded manually on paper and subsequently digitized into Excel spreadsheets. No imputation or gap-filling procedures were applied to the dataset. In cases where certain parameters exhibited readings below the detection threshold, the measurement units automatically shifted to a lower metric scale. For example, dissolved oxygen concentrations were recorded in mg/L by default but were represented in µg/L for particularly low-concentration samples. For the sake of consistency and uniformity across the dataset, all such values were converted back to the default unit of mg/L. \n\nSamples were transported to the laboratory on the same day in a refrigerated isothermal container and stored at −20 °C until analysis to preserve their integrity. Upon arrival, the samples were processed immediately for both culture-based microbiological analyses and metagenomic DNA extraction, thereby maintaining sample freshness and minimizing potential degradation. Bacterial isolates obtained from each sampling site were preserved as glycerol stocks and stored at −80°C to maintain viability for future analyses.\n\nDue to a lack of water at the site because of warm conditions, no water samples were collected from PSL10 in 2023. The levels were similarly low the following year, so this site was excluded from water and physicochemical analysis.","spatialRepresentationTypes":["textTable"],"topicCategories":[{"value":"environment","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/environment"},{"value":"inlandWaters","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/inlandWaters"},{"value":"location","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/location"},{"value":"health","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/health"}],"keywordsTheme":[{"value":"Water quality","uri":"http://onto.nerc.ac.uk/CEHMD/topic/16"},{"value":"Pollution","uri":"http://onto.nerc.ac.uk/CEHMD/topic/15"},{"value":"Environmental risk","uri":"http://onto.nerc.ac.uk/CEHMD/topic/5"}],"keywordsOther":[{"value":"Chennai"},{"value":"Pondicherry"},{"value":"Puducherry"},{"value":"Water quality"},{"value":"Physicochemical"},{"value":"AMR"},{"value":"Antimicrobial resistance"},{"value":"India"},{"value":"Antimicrobial manufacturing"},{"value":"Antibiotic manufacturing"},{"value":"Pharmaceutical pollution"},{"value":"Pharmaceutical manufacturing waste"},{"value":"Water pollution"}],"distributionFormats":[{"name":"Comma-separated values (CSV)","type":"text/csv","version":"unknown"}],"funding":[{"funderName":"Natural Environment Research Council","funderIdentifier":"https://ror.org/02b5d8509","awardTitle":"Defining the AMR Burden of Antimicrobial Manufacturing Waste in Puducherry and Chennai","awardNumber":"NE/T013184/1","awardURI":"https://gtr.ukri.org/projects?ref=NE/T013184/1","orcid":false,"ror":true}],"boundingBoxes":[{"westBoundLongitude":79.631,"eastBoundLongitude":80.198,"southBoundLatitude":11.877,"northBoundLatitude":12.692,"bounds":"{\"type\": \"Feature\",      \"properties\": {},      \"geometry\": {        \"type\": \"Polygon\",        \"coordinates\": [[[79.631, 11.877], [79.631, 12.692], [80.198, 12.692], [80.198, 11.877], [79.631, 11.877]]]      }}","coordinates":"[[[79.631, 11.877], [79.631, 12.692], [80.198, 12.692], [80.198, 11.877], [79.631, 11.877]]]"}],"distributorContacts":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"distributor","email":"info@eidc.ac.uk"}],"responsibleParties":[{"familyName":"Voulvoulis","givenName":"Nick","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"pointOfContact","email":"n.voulvoulis@imperial.ac.uk","fullName":"Voulvoulis, N.","pointOfContact":"Imperial College London"},{"honorificPrefix":"Mr","familyName":"RU","givenName":"Vishnu Prasad Nair","organisationName":"Pondicherry University","organisationIdentifier":"https://ror.org/01a3mef16","role":"author","email":"vishnuprasadnovember@gmail.com","fullName":"RU, V.P.N."},{"honorificPrefix":"Ms","familyName":"Suseela","givenName":"Medapati Nikitha Lakshmi","organisationName":"Indian Institute of Technology BHU","organisationIdentifier":"https://ror.org/01kh5gc44","role":"author","email":"luckytulasi4@gmail.com","fullName":"Suseela, M.N.L."},{"honorificPrefix":"Mr","familyName":"Patharaj","givenName":"Gokul","organisationName":"Indian Institute of Technology BHU","organisationIdentifier":"https://ror.org/01kh5gc44","role":"author","email":"gokulpatharaj@gmail.com","fullName":"Patharaj, G."},{"honorificPrefix":"Mr","familyName":"Kumaresan","givenName":"T.N","organisationName":"Pondicherry University","organisationIdentifier":"https://ror.org/01a3mef16","role":"author","email":"kumaresann48@gmail.com","fullName":"Kumaresan, T.N."},{"honorificPrefix":"Ms","familyName":"Pan","givenName":"Sayaree","organisationName":"Aarupadai Veedu Medical College & Hospital","organisationIdentifier":"https://ror.org/02jz4rx70","role":"author","email":"sayareepan@gmail.com","fullName":"Pan, S."},{"honorificPrefix":"Dr","familyName":"Vieira","givenName":"Ana","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"ana.vieira@imperial.ac.uk","fullName":"Vieira, A."},{"honorificPrefix":"Professor","familyName":"Sriskandan","givenName":"Shiranee","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"s.sriskandan@imperial.ac.uk","fullName":"Sriskandan, S."},{"honorificPrefix":"Dr","familyName":"Freeman","givenName":"Anna","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"anna.freeman@imperial.ac.uk","fullName":"Freeman, A."},{"honorificPrefix":"Dr","familyName":"Giakoumis","givenName":"Theodoros","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"theodoros.giakoumis13@imperial.ac.uk","fullName":"Giakoumis, T."},{"honorificPrefix":"Professor","familyName":"Voulvoulis","givenName":"Nick","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"n.voulvoulis@imperial.ac.uk","fullName":"Voulvoulis, N."},{"honorificPrefix":"Professor","familyName":"Selvin","givenName":"Jospeh","organisationName":"Pondicherry University","organisationIdentifier":"https://ror.org/01a3mef16","role":"author","email":"jselvin.mib@pondiuni.edu.in","fullName":"Selvin, J."},{"honorificPrefix":"Professor","familyName":"Ragunathan","givenName":"Latha","organisationName":"Aarupadai Veedu Medical College & Hospital","organisationIdentifier":"https://ror.org/02jz4rx70","role":"author","email":"latha.ragunathan@avmc.edu.in","fullName":"Ragunathan, L."},{"honorificPrefix":"Professor","familyName":"Muthu","givenName":"M.S","organisationName":"Indian Institute of Technology BHU","organisationIdentifier":"https://ror.org/01kh5gc44","role":"author","email":"msmuthu.phe@itbhu.ac.in","fullName":"Muthu, M.S."},{"organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"rightsHolder"},{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"},{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"}],"temporalExtents":[{"begin":"2023-01-01","end":"2024-12-12"}],"spatialReferenceSystems":[{"code":"http://www.opengis.net/def/crs/EPSG/0/4326","title":"WGS 84"}],"datasetReferenceDate":{"publicationDate":"2026-01-18","releasedDate":"2026-05-05"},"useConstraints":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"resourceType":{"value":"dataset"},"accessLimitation":{"value":"embargoed","code":"Embargoed","uri":"http://purl.org/coar/access_right/c_f1cf"},"notGEMINI":true,"hasOnlineServiceAgreement":true,"licences":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"topics":["http://onto.nerc.ac.uk/CEHMD/topic/16","http://onto.nerc.ac.uk/CEHMD/topic/15","http://onto.nerc.ac.uk/CEHMD/topic/5"],"incomingCitationCount":0,"publishers":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"authors":[{"honorificPrefix":"Mr","familyName":"RU","givenName":"Vishnu Prasad Nair","organisationName":"Pondicherry University","organisationIdentifier":"https://ror.org/01a3mef16","role":"author","email":"vishnuprasadnovember@gmail.com","fullName":"RU, V.P.N."},{"honorificPrefix":"Ms","familyName":"Suseela","givenName":"Medapati Nikitha Lakshmi","organisationName":"Indian Institute of Technology BHU","organisationIdentifier":"https://ror.org/01kh5gc44","role":"author","email":"luckytulasi4@gmail.com","fullName":"Suseela, M.N.L."},{"honorificPrefix":"Mr","familyName":"Patharaj","givenName":"Gokul","organisationName":"Indian Institute of Technology BHU","organisationIdentifier":"https://ror.org/01kh5gc44","role":"author","email":"gokulpatharaj@gmail.com","fullName":"Patharaj, G."},{"honorificPrefix":"Mr","familyName":"Kumaresan","givenName":"T.N","organisationName":"Pondicherry University","organisationIdentifier":"https://ror.org/01a3mef16","role":"author","email":"kumaresann48@gmail.com","fullName":"Kumaresan, T.N."},{"honorificPrefix":"Ms","familyName":"Pan","givenName":"Sayaree","organisationName":"Aarupadai Veedu Medical College & Hospital","organisationIdentifier":"https://ror.org/02jz4rx70","role":"author","email":"sayareepan@gmail.com","fullName":"Pan, S."},{"honorificPrefix":"Dr","familyName":"Vieira","givenName":"Ana","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"ana.vieira@imperial.ac.uk","fullName":"Vieira, A."},{"honorificPrefix":"Professor","familyName":"Sriskandan","givenName":"Shiranee","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"s.sriskandan@imperial.ac.uk","fullName":"Sriskandan, S."},{"honorificPrefix":"Dr","familyName":"Freeman","givenName":"Anna","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"anna.freeman@imperial.ac.uk","fullName":"Freeman, A."},{"honorificPrefix":"Dr","familyName":"Giakoumis","givenName":"Theodoros","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"theodoros.giakoumis13@imperial.ac.uk","fullName":"Giakoumis, T."},{"honorificPrefix":"Professor","familyName":"Voulvoulis","givenName":"Nick","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"author","email":"n.voulvoulis@imperial.ac.uk","fullName":"Voulvoulis, N."},{"honorificPrefix":"Professor","familyName":"Selvin","givenName":"Jospeh","organisationName":"Pondicherry University","organisationIdentifier":"https://ror.org/01a3mef16","role":"author","email":"jselvin.mib@pondiuni.edu.in","fullName":"Selvin, J."},{"honorificPrefix":"Professor","familyName":"Ragunathan","givenName":"Latha","organisationName":"Aarupadai Veedu Medical College & Hospital","organisationIdentifier":"https://ror.org/02jz4rx70","role":"author","email":"latha.ragunathan@avmc.edu.in","fullName":"Ragunathan, L."},{"honorificPrefix":"Professor","familyName":"Muthu","givenName":"M.S","organisationName":"Indian Institute of Technology BHU","organisationIdentifier":"https://ror.org/01kh5gc44","role":"author","email":"msmuthu.phe@itbhu.ac.in","fullName":"Muthu, M.S."}],"publicationDate":"2026-01-18T00:00:00.000+00:00","availability":"Embargoed","pointsOfContact":[{"familyName":"Voulvoulis","givenName":"Nick","organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"pointOfContact","email":"n.voulvoulis@imperial.ac.uk","fullName":"Voulvoulis, N.","pointOfContact":"Imperial College London"}],"rightsHolders":[{"organisationName":"Imperial College London","organisationIdentifier":"https://ror.org/041kmwe10","role":"rightsHolder"}],"custodians":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"}],"citation":{"authors":["RU, V.P.N.","Suseela, M.N.L.","Patharaj, G.","Kumaresan, T.N.","Pan, S.","Vieira, A.","Sriskandan, S.","Freeman, A.","Giakoumis, T.","Voulvoulis, N.","Selvin, J.","Ragunathan, L.","Muthu, M.S."],"doi":"10.5285/62fe92d8-db54-4285-9617-573e77a55c4b","title":"Physicochemical parameters of Chennai and Pondicherry water samples near antimicrobial manufacturing sites, India, 2023-2024","publisher":"NERC EDS Environmental Information Data Centre","resourceTypeGeneral":"dataset","year":2026,"month":1,"day":18,"bibtex":"https://catalogue.ceh.ac.uk/documents/62fe92d8-db54-4285-9617-573e77a55c4b/citation?format=bib","ris":"https://catalogue.ceh.ac.uk/documents/62fe92d8-db54-4285-9617-573e77a55c4b/citation?format=ris","url":"https://doi.org/10.5285/62fe92d8-db54-4285-9617-573e77a55c4b"}}