Afifa Sehr afifasehr321@gmail.com University of Veterinary and Animal Sciences UVAS https://www.uvas.edu.pk https://ror.org/00g325k81 Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 University of Veterinary and Animal Sciences UVAS https://www.uvas.edu.pk https://ror.org/00g325k81 2026 Total heavy metal concentrations and contamination/geoaccumulation indices in surface sediment at four Indus Basin barrages, Punjab, Pakistan dataset https://doi.org/10.1594/PANGAEA.997450 2026-09-17T05:26:17 This dataset reports total heavy metal concentrations (copper, cadmium, iron, lead, arsenic) in surface sediment at four barrages on the Indus Basin river system in Punjab, Pakistan - Head Sulemanki (Sutlej), Taunsa Barrage (Indus), Head Punjnad (Chenab-Sutlej confluence), and Head Islam (Sutlej) - sampled on 27 June 2026. One composite sediment sample was collected and analysed per site; no field replicates were taken, so no within-site variance or confidence interval can be attached to any single-site value. Contamination factor (CF) and geoaccumulation index (Igeo) are reported for copper, cadmium, and lead only, these being the three metals for which the source thesis provides an explicit background reference value (see the Reference_Values sheet); iron and arsenic are reported as concentrations only, since no comparable background value is given in the source. Sediment quality guideline quotients, TEL- and PEL-based, are additionally reported for cadmium. This dataset is derived from "Heavy Metal Speciation in Riverbed Sediments and Trophic Transfer to Benthic Fish at Selected Barrages of Punjab", a thesis by Afifa Sehr (24-CUVAS-0082), Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan (2026). All values are transcribed verbatim from the source thesis; none has been estimated, imputed, or otherwise generated. The source thesis's methods describe a three-season sampling design, but the data reported here reflect a single sampling date only. Afifa Sehr afifasehr321@gmail.com in prep. Heavy Metal Speciation in Riverbed Sediments and Trophic Transfer to Benthic Fish at Selected Barrages of Punjab thesis Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan [24-CUVAS-0082] Müller G 1969 Index of Geoaccumulation in Sediments of the Rhine River GeoJournal 2 108-118 Smith Sherri L MacDonald Donald D Keenleyside Karen A Ingersoll Christopher G Jay Field L 1996 A Preliminary Evaluation of Sediment Quality Assessment Values for Freshwater Ecosystems journal article Journal of Great Lakes Research 22(3) https://doi.org/10.1016/S0380-1330(96)70985-1 624-638 Taylor Stuart Ross McLennan Scott M 0000-0003-4259-7178 1995 The geochemical evolution of the continental crust journal article Reviews of Geophysics 33(2) https://doi.org/10.1029/95RG00262 241 ReadMe for used reference samples https://download.pangaea.de/reference/141718/attachments/Reference_Sample.pdf 70.85 73.88333333 29.35 30.7 71.9874999975 30.0083333325 2026-06-27T00:00:00 2026-06-27T00:00:00 0.025 0.025 vertical profile Chenab-Sutlej_River_Head_Punjnad 29.35 71.03333333 Punjab, Pakistan 111.0 2026-06-27T00:00:00 Sediment and fish samples were taken on this position/date. Coordinates converted (arc-minute precision, ~1.8 km). Elevation values are approximate. Indus_River_Taunsa_Barrage 30.7 70.85 Punjab, Pakistan 161.0 2026-06-27T00:00:00 Sediment and fish samples were taken on this position/date. Coordinates converted (arc-minute precision, ~1.8 km). Elevation values are approximate. Sutlej_River_Head_Islam 29.68333333 72.18333333 Punjab, Pakistan 138.0 2026-06-27T00:00:00 Sediment and fish samples were taken on this position/date. Coordinates converted (arc-minute precision, ~1.8 km). Elevation values are approximate. Sutlej_River_Head_Sulemanki 30.3 73.88333333 Punjab, Pakistan 155.0 2026-06-27T00:00:00 Sediment and fish samples were taken on this position/date. Coordinates converted (arc-minute precision, ~1.8 km). Elevation values are approximate. 80 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Event Latitude of event Latitude Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Latitude Longitude of event Longitude Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Longitude Date/Time of event Date/Time Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Date/Time Elevation of event Elevation m Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Elevation [m] District District Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 District Depth, sediment/rock, top/minimum Depth sed top m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock http://purl.obolibrary.org/obo/ENVO_00001995 minimum Length L http://dbpedia.org/resource/Length Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Depth sed top [m] Depth, sediment/rock, bottom/maximum Depth sed bot m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock http://purl.obolibrary.org/obo/ENVO_00001995 maximum Length L http://dbpedia.org/resource/Length Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Depth sed bot [m] DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Depth sed [m] Copper Cu µg/g copper see reference(s) Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Describes an aqua-regia-style total digestion Cu [µg/g] (Describes an aqua-regia-style...) Cadmium Cd µg/g cadmium see reference(s) Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Describes an aqua-regia-style total digestion Cd [µg/g] (Describes an aqua-regia-style...) Iron Fe µg/g see reference(s) Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Describes an aqua-regia-style total digestion Fe [µg/g] (Describes an aqua-regia-style...) Lead Pb µg/g lead see reference(s) Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Describes an aqua-regia-style total digestion Pb [µg/g] (Describes an aqua-regia-style...) Arsenic As µg/g arsenic see reference(s) Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Describes an aqua-regia-style total digestion As [µg/g] (Describes an aqua-regia-style...) Contamination factor Con F Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Copper - Cd/background reference (see ReadMe file) Con F (Copper - Cd/background refere...) Geoaccumulation index Igeo Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Copper - log2(Cu/1.5×background) Igeo (Copper - log2(Cu/1.5×backgrou...) Geoaccumulation class Igeo class Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Copper Igeo class (Copper) Contamination factor Con F Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Cadmium - Cd/background reference (see ReadMe file) Con F (Cadmium - Cd/background refer...) Geoaccumulation index Igeo Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Cadmium - log2(Pb/1.5×background) Igeo (Cadmium - log2(Pb/1.5×backgro...) Geoaccumulation class Igeo class Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Cadmium Igeo class (Cadmium) Contamination factor Con F Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Lead - Pb/background reference (see ReadMe file) Con F (Lead - Pb/background referenc...) Geoaccumulation index Igeo Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Lead - log2(Pb/1.5×background) Igeo (Lead - log2(Pb/1.5×background...) Geoaccumulation class Igeo class Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Lead Igeo class (Lead) Sediment quality guideline quotient SQG-Q Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Cadmium, Cd/TEL (see ReadMe file) SQG-Q (Cadmium, Cd/TEL (see ReadMe f...) Sediment quality guideline quotient SQG-Q Calculated Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Cadmium, Cd/PEL (see ReadMe file) SQG-Q (Cadmium, Cd/PEL (see ReadMe f...) Sediment quality guideline verdict SQG verdict Qazi Adnan Ahmad qaziadnanahmad@cuvas.edu.pk 0000-0002-8446-8342 Cadmium -Interpretation of SQG-Q(TEL)/SQG-Q(PEL) quotients SQG verdict (Cadmium -Interpretation of SQ...) 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