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Ecotoxicology and geostatistical techniques employed in subtropical reservoirs sediments after decades of copper sulfate application.
Biamont-Rojas, Ivan Edward; Cardoso-Silva, Sheila; Bitencourt, Marisa Dantas; Dos Santos, André Cordeiro Alves; Moschini-Carlos, Viviane; Rosa, André Henrique; Pompêo, Marcelo.
Afiliación
  • Biamont-Rojas IE; Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, Sorocaba, 18087-180, Brazil. biamont.ivan@gmail.com.
  • Cardoso-Silva S; Federal University of Acre-UFAC, Rodovia BR 364, Km 04, Rio Branco, AC, 69920-900, Brazil.
  • Bitencourt MD; Oceanographic Institute, University of São Paulo (IO/USP), Praça Do Oceanográfico, 191, São Paulo, SP, 05508-120, Brazil.
  • Dos Santos ACA; Department of Ecology, University of São Paulo, Rua Do Matão, trav. 14, n° 321, Cidade Universitária, São Paulo, 05508-090, Brazil.
  • Moschini-Carlos V; Federal University of São Carlos, Rodovia João Leme dos Santos km 110, Itinga, Sorocaba, SP, 18052-780, Brazil.
  • Rosa AH; Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, Sorocaba, 18087-180, Brazil.
  • Pompêo M; Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, Sorocaba, 18087-180, Brazil.
Environ Geochem Health ; 45(5): 2415-2434, 2023 May.
Article en En | MEDLINE | ID: mdl-35986856
Spatial distribution linked to geostatistical techniques contributes to sum up information into an easier-to-comprehend knowledge. This study compares copper spatial distribution in surface sediments and subsequent categorization according to its toxicological potential in two reservoirs, Rio Grande (RG) and Itupararanga (ITU) (São Paulo-Brazil), where copper sulfate is applied and not applied, respectively. Sediments from 47 sites in RG and 52 sites in ITU were collected, and then, copper concentrations were interpolated using geostatistical techniques (kriging). The resulting sediment distributions were classified in categories based on sediment quality guides: threshold effect level and probable effect level; regional reference values (RRVs) and enrichment factor (EF). Copper presented a heterogenic distribution and higher concentrations in RG (2283.00 ± 1308.75 mg/kg) especially on the upstream downstream, associated with algicide application as well as the sediment grain size, contrary to ITU (21.81 ± 8.28 mg/kg) where a no-clear pattern of distribution was observed. Sediments in RG are predominantly categorized as "Very Bad", whereas sediments in ITU are mainly categorized as "Good", showing values higher than RRV. The classification is supported by the EF categorization, which in RG is primarily categorized as "Very High" contrasting to ITU classified as "Absent/Very Low". Copper total stock in superficial sediment estimated for RG is 4515.35 Ton of Cu and for ITU is 27.45 Ton of Cu.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Sulfato de Cobre País/Región como asunto: America do sul / Brasil Idioma: En Revista: Environ Geochem Health Asunto de la revista: QUIMICA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Sulfato de Cobre País/Región como asunto: America do sul / Brasil Idioma: En Revista: Environ Geochem Health Asunto de la revista: QUIMICA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos