Date (Publication)

2026-01-18

Citation identifier

https://catalogue.ceh.ac.uk/id/62fe92d8-db54-4285-9617-573e77a55c4b

Citation identifier

doi: / 10.5285/62fe92d8-db54-4285-9617-573e77a55c4b

Other citation details

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. (2026). Physicochemical parameters of Chennai and Pondicherry water samples near antimicrobial manufacturing sites, India, 2023-2024. NERC EDS Environmental Information Data Centre 10.5285/62fe92d8-db54-4285-9617-573e77a55c4b

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Imperial College London	Voulvoulis, N.	n.voulvoulis@imperial.ac.uk	Point of contact
Pondicherry University	RU, V.P.N.	vishnuprasadnovember@gmail.com	Author
Indian Institute of Technology BHU	Suseela, M.N.L.	luckytulasi4@gmail.com	Author
Indian Institute of Technology BHU	Patharaj, G.	gokulpatharaj@gmail.com	Author
Pondicherry University	Kumaresan, T.N.	kumaresann48@gmail.com	Author
Aarupadai Veedu Medical College & Hospital	Pan, S.	sayareepan@gmail.com	Author
Imperial College London	Vieira, A.	ana.vieira@imperial.ac.uk	Author
Imperial College London	Sriskandan, S.	s.sriskandan@imperial.ac.uk	Author
Imperial College London	Freeman, A.	anna.freeman@imperial.ac.uk	Author
Imperial College London	Giakoumis, T.	theodoros.giakoumis13@imperial.ac.uk	Author
Imperial College London	Voulvoulis, N.	n.voulvoulis@imperial.ac.uk	Author
Pondicherry University	Selvin, J.	jselvin.mib@pondiuni.edu.in	Author
Aarupadai Veedu Medical College & Hospital	Ragunathan, L.	latha.ragunathan@avmc.edu.in	Author
Indian Institute of Technology BHU	Muthu, M.S.	msmuthu.phe@itbhu.ac.in	Author
Imperial College London		EMAIL NOT PROVIDED	Owner
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Publisher
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Custodian

Keywords

• Water quality
• Pollution
• Environmental risk

• Chennai

• Pondicherry

• Puducherry

• Water quality

• Physicochemical

• AMR

• Antimicrobial resistance

• India

• Antimicrobial manufacturing

• Antibiotic manufacturing

• Pharmaceutical pollution

• Pharmaceutical manufacturing waste

• Water pollution

Access constraints

Other restrictions

Other constraints

Embargoed

Use constraints

Other restrictions

Other constraints

This resource is available under the terms of the Open Government Licence

Use constraints

Other restrictions

Other constraints

If you reuse this data, you should cite: 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. (2026). Physicochemical parameters of Chennai and Pondicherry water samples near antimicrobial manufacturing sites, India, 2023-2024. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/62fe92d8-db54-4285-9617-573e77a55c4b

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Environment
• Inland waters
• Location
• Health

Begin date

2023-01-01

End date

2024-12-12

Unique resource identifier

WGS 84

Distribution format

Name	Version
Comma-separated values (CSV)

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Distributor

Hierarchy level

Dataset

Other

dataset

Statement

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. Parameters 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. Samples 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. Due 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.

Metadata

File identifier

62fe92d8-db54-4285-9617-573e77a55c4b XML

Metadata language

English

Character set

8859 Part 1

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2026-02-06T14:11:44

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Point of contact