№ files_lp_3_process_9_71395
File format: docx Character count: 7830 File size: 74 KB
Geochemical research article presenting physicochemical parameters, anions, and statistical analyses of stream water samples from the Vermelho and Sororó sub-basins in the Itacaiúnas River watershed, Eastern Amazon, to establish heavy metal distribution and threshold values.
Title: Geochemical distribution and threshold values determination of heavy metals in stream water in the sub-basins of Vermelho and Sororó rivers, Itacaiúnas River watershed, Eastern Amazon, Brazil
Affiliations: Instituto Tecnológico Vale (ITV), Belém, PA, Brazil; Gerência de Meio Ambiente - Minas de Carajás, Departamento de Ferrosos Norte, Parauapebas, PA, Brazil; Museu Paraense Emílio Goeldi (MPEG), Belém, PA, Brazil
Region: Eastern Amazon, Brazil
Watershed: Itacaiúnas River watershed
Sub-basins: Vermelho River; Sororó River
Thematic area: Environmental geochemistry; water quality; heavy metals; hydrochemistry
Type of document: Scientific research article
Environmental matrix: Stream surface water
Analyzed parameters: Dissolved oxygen; pH; temperature; specific electrical conductivity; redox potential; total dissolved solids; turbidity; total phosphorus; nitrate; sulfate; fluoride; chloride; heavy metals
Analytical methods: SMWW (APHA 2012) methods 4500O G; 4500H+ B; 2550 B; 2510 B; 2580 B; 2540 A–E; 2130 B; 4500 P-E; EPA 300.0 (1993); EPA 300.1 (1999); POP PA 032 - Rev. 12
Sampling periods: Rainy season; dry season
Statistical approach: Descriptive statistics including median, mean, standard deviation, minimum, maximum, lower outlier limit, before and after outlier removal
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