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  "agreement": "true",
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  "agreement": "true",
            
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  "alternative_identifier": "ISBN 1-86845-694-3",
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  "alternative_identifier": "ISBN 1-86845-694-3",
            
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  "author": null,
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  "author": null,
            
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  "author_email": null,
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  "author_email": null,
            
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  "authors": [
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  "authors": [
            
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    {
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    {
            
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      "author_department": "Department of Geological Sciences",
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      "author_department": "Department of Geological Sciences",
            
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      "author_email": "[CONFIRM]",
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      "author_email": "[CONFIRM]",
            
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      "author_name": "L.P.",
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      "author_name": "L.P.",
            
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      "author_organization": "University of Cape Town",
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      "author_organization": "University of Cape Town",
            
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      "author_surname": "McCaffrey",
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      "author_surname": "McCaffrey",
            
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      "contact_same_as_author": "true"
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      "contact_same_as_author": "true"
            
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    },
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    },
            
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    {
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    {
            
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      "author_department": "Department of Geological Sciences",
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      "author_department": "Department of Geological Sciences",
            
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      "author_email": "[CONFIRM]",
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      "author_email": "[CONFIRM]",
            
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      "author_name": "J.P.",
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      "author_name": "J.P.",
            
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      "author_organization": "University of Cape Town",
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      "author_organization": "University of Cape Town",
            
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      "author_surname": "Willis",
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      "author_surname": "Willis",
            
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      "contact_same_as_author": "false"
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      "contact_same_as_author": "false"
            
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    }
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    }
            
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  ],
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  ],
            
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  "citation_title": "MCCAFFREY LP and WILLIS JP (2001) Distribution of 
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  "citation_title": "MCCAFFREY LP and WILLIS JP (2001) Distribution of 
            
25
fluoride-rich ground water in the eastern and Mogwase regions of the 
25
fluoride-rich ground water in the eastern and Mogwase regions of the 
            
26
Northern and North-West Provinces. WRC Report No. 526/1/01. Water 
26
Northern and North-West Provinces. WRC Report No. 526/1/01. Water 
            
27
Research Commission, Pretoria.",
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Research Commission, Pretoria.",
            
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  "contact_person": [
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  "contact_person": [
            
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    {
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    {
            
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      "contact_department": "Department of Geological Sciences",
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      "contact_department": "Department of Geological Sciences",
            
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      "contact_email": "[CONFIRM]",
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      "contact_email": "[CONFIRM]",
            
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      "contact_name": "L.P.",
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      "contact_name": "L.P.",
            
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      "contact_orgnization": "University of Cape Town"
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      "contact_orgnization": "University of Cape Town"
            
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    }
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    }
            
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  ],
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  "creator_user_id": "bc28a33f-dc21-4795-a57f-da7cd1aa23ea",
            
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  "data_classification": "static",
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  "data_classification": "static",
            
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  "data_collection_organization": "University of Cape Town, Department 
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  "data_collection_organization": "University of Cape Town, Department 
            
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of Geological Sciences",
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of Geological Sciences",
            
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  "data_structure_category": "structured",
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  "data_structure_category": "structured",
            
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  "dataset_language": "English",
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  "dataset_language": "English",
            
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  "dataset_license_url": 
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  "dataset_license_url": 
            
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"https://creativecommons.org/licenses/by/4.0/",
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"https://creativecommons.org/licenses/by/4.0/",
            
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  "did_author_or_contact_organization_collect_the_data": "true",
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  "did_author_or_contact_organization_collect_the_data": "true",
            
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  "email": "vanderlaanm@arc.agric.za",
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  "email": "vanderlaanm@arc.agric.za",
            
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  "extras": [
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  "extras": [
            
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    {
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    {
            
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      "key": "data_reference_date_from",
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      "key": "data_reference_date_from",
            
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      "value": "1993-07-01"
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      "value": "1993-07-01"
            
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    },
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    },
            
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    {
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    {
            
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      "key": "data_reference_date_to",
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      "key": "data_reference_date_to",
            
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      "value": "1995-05-31"
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      "value": "1995-05-31"
            
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    }
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    }
            
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  ],
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  ],
            
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  "isopen": false,
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  "isopen": false,
            
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  "keywords": "fluoride, groundwater, hydrochemistry, fluorosis, 
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  "keywords": "fluoride, groundwater, hydrochemistry, fluorosis, 
            
60
drinking water, boreholes, major ions, trace elements, iodide, rock 
60
drinking water, boreholes, major ions, trace elements, iodide, rock 
            
61
geochemistry, XRF, electron microprobe, fluorite, apatite, Bushveld 
61
geochemistry, XRF, electron microprobe, fluorite, apatite, Bushveld 
            
62
Igneous Complex, Pilanesberg, North West Province, Bophuthatswana, 
62
Igneous Complex, Pilanesberg, North West Province, Bophuthatswana, 
            
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legacy data",
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legacy data",
            
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  "license": "Open (Creative Commons)",
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  "license": "Open (Creative Commons)",
            
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  "license_id": null,
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  "license_id": null,
            
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  "license_title": null,
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  "license_title": null,
            
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  "maintainer": null,
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  "maintainer": null,
            
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  "maintainer_email": null,
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  "metadata_created": "2026-10-22T09:31:05.133891",
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  "metadata_created": "2026-10-22T09:31:05.133891",
            
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  "metadata_modified": "2026-10-22T09:42:39.550508",
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  "metadata_modified": "2026-10-22T09:43:25.991372",
            
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  "minimum_maximum_extent": [
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  "minimum_maximum_extent": [
            
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    {
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    {
            
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      "maximum_vertical_extent": "1310",
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      "maximum_vertical_extent": "1310",
            
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      "minimum_vertical_extent": "1000"
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      "minimum_vertical_extent": "1000"
            
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    }
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    }
            
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  ],
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  ],
            
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  "name": 
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  "name": 
            
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roundwater-and-rocks-mogwase-and-eastern-north-west-region-1993-1994",
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roundwater-and-rocks-mogwase-and-eastern-north-west-region-1993-1994",
            
79
  "notes": "This dataset contains groundwater chemistry data collected 
79
  "notes": "This dataset contains groundwater chemistry data collected 
            
80
for WRC project K5/526, which investigated the distribution of 
80
for WRC project K5/526, which investigated the distribution of 
            
81
fluoride-rich groundwater in the Mogwase and eastern regions of the 
81
fluoride-rich groundwater in the Mogwase and eastern regions of the 
            
82
former Bophuthatswana, now part of North West and Limpopo provinces. 
82
former Bophuthatswana, now part of North West and Limpopo provinces. 
            
83
Researchers from the Department of Geological Sciences at the 
83
Researchers from the Department of Geological Sciences at the 
            
84
University of Cape Town sampled about 320 sites in July and September 
84
University of Cape Town sampled about 320 sites in July and September 
            
85
1993 and October 1994. Most sites were boreholes fitted with handpumps 
85
1993 and October 1994. Most sites were boreholes fitted with handpumps 
            
86
or windpumps in villages, schools and grazing areas, but some springs, 
86
or windpumps in villages, schools and grazing areas, but some springs, 
            
87
rivers, pans and a mine seepage were also sampled. The researchers 
87
rivers, pans and a mine seepage were also sampled. The researchers 
            
88
measured pH, total dissolved solids and total alkalinity in the field, 
88
measured pH, total dissolved solids and total alkalinity in the field, 
            
89
measured fluoride with an ion-selective electrode, and determined 
89
measured fluoride with an ion-selective electrode, and determined 
            
90
major ions by ion chromatography at UCT. Trace elements (As, Mo, Al, 
90
major ions by ion chromatography at UCT. Trace elements (As, Mo, Al, 
            
91
Sr, Ba, Ni, Cr, V, Zn, Cu, Li, Cd, Co, Pb) were determined by ICP-AES 
91
Sr, Ba, Ni, Cr, V, Zn, Cu, Li, Cd, Co, Pb) were determined by ICP-AES 
            
92
on 57 acidified samples, and iodide on 51 samples. Fluoride ranged up 
92
on 57 acidified samples, and iodide on 51 samples. Fluoride ranged up 
            
93
to 69 mg/L, and about 45% of the analysed samples exceeded 1.5 mg/L. 
93
to 69 mg/L, and about 45% of the analysed samples exceeded 1.5 mg/L. 
            
94
To identify fluoride sources, the team also collected 42 rock samples 
94
To identify fluoride sources, the team also collected 42 rock samples 
            
95
(with paired soils) across the main lithologies of the Bushveld 
95
(with paired soils) across the main lithologies of the Bushveld 
            
96
Igneous Complex, Pilanesberg Alkaline Complex and Transvaal Supergroup 
96
Igneous Complex, Pilanesberg Alkaline Complex and Transvaal Supergroup 
            
97
in May and June 1994. These rocks were analysed by 
97
in May and June 1994. These rocks were analysed by 
            
98
wavelength-dispersive XRF for major elements and fluorine, examined in 
98
wavelength-dispersive XRF for major elements and fluorine, examined in 
            
99
thin section for fluorine-bearing minerals, and selected minerals 
99
thin section for fluorine-bearing minerals, and selected minerals 
            
100
(mica, amphibole, K-feldspar, carbonates and apatite) were analysed by 
100
(mica, amphibole, K-feldspar, carbonates and apatite) were analysed by 
            
101
electron microprobe. Whole-rock fluorine ranged up to about 80 000 ppm 
101
electron microprobe. Whole-rock fluorine ranged up to about 80 000 ppm 
            
102
in fluorite ore from the Pilanesberg. The data were originally 
102
in fluorite ore from the Pilanesberg. The data were originally 
            
103
published only as printed appendices (A1, A2, A4 to A7, A9 and A10) of 
103
published only as printed appendices (A1, A2, A4 to A7, A9 and A10) of 
            
104
WRC Report No. 526/1/01. In 2026 they were harvested from the scanned 
104
WRC Report No. 526/1/01. In 2026 they were harvested from the scanned 
            
105
report into machine-readable tables for the Water Research 
105
report into machine-readable tables for the Water Research 
            
106
Observatory. OCR errors were corrected against the page images, site 
106
Observatory. OCR errors were corrected against the page images, site 
            
107
coordinates were converted to signed decimal degrees, and personal 
107
coordinates were converted to signed decimal degrees, and personal 
            
108
names in site descriptions were removed. Charge-balance and TDS 
108
names in site descriptions were removed. Charge-balance and TDS 
            
109
consistency checks were also added. Totals of the rock and mineral 
109
consistency checks were also added. Totals of the rock and mineral 
            
110
analyses were recomputed to check the transcription. Thirty-six 
110
analyses were recomputed to check the transcription. Thirty-six 
            
111
groundwater rows were found to carry ion values duplicated from other 
111
groundwater rows were found to carry ion values duplicated from other 
            
112
sites in the original report, and these were flagged as suspect rather 
112
sites in the original report, and these were flagged as suspect rather 
            
113
than removed. Soil analyses were reported only as figures and were not 
113
than removed. Soil analyses were reported only as figures and were not 
            
114
included. Per-sample collection dates and the coordinate datum were 
114
included. Per-sample collection dates and the coordinate datum were 
            
115
not reported.",
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not reported.",
            
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and is currently the top-rated university in Africa and one of the 
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and is currently the top-rated university in Africa and one of the 
            
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top-rated universities in the world. Our researchers continue to help 
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top-rated universities in the world. Our researchers continue to help 
            
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with the creation of African-based solutions to global problems, 
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with the creation of African-based solutions to global problems, 
            
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including issues relating to climate change, urbanisation, safety and 
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including issues relating to climate change, urbanisation, safety and 
            
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security, education and health, to name just a few. Many UCT 
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security, education and health, to name just a few. Many UCT 
            
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researchers are recognised world leaders in their respective fields, 
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researchers are recognised world leaders in their respective fields, 
            
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which means that if you choose to study with us, you will continually 
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which means that if you choose to study with us, you will continually 
            
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      "dataset_description": "Site, major-ion, trace-element and 
            
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iodide tables with QA flags, corrections log and cells-to-verify 
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