Use of a chemometric tool to establish the regional background and assess trace metal enrichment at Baixada Santista – southeastern Brazil

Kim, Bianca Sung Mi; Angeli, José Lourenço Friedmann; Ferreira, Paulo Alves de Lima; Sartoretto, Juliê Rosemberg; Miyoshi, Carolina; Mahiques, Michel Michaelovitch de; Figueira, Rubens César Lopes

doi:10.1016/j.chemosphere.2016.09.132

Cited by 43 publications

(19 citation statements)

References 28 publications

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“…As pointed out by previous studies (Buruaem et al, 2013;Maciel et al, 2016Maciel et al, , 2015Torres et al, 2015), the overall chemical contamination gradient in surface sediments decreased from estuarine-to marine-influenced sites. A recent investigation on trace metals (As, Cr, Cu, Ni, Pb and Zn) in the study area also revealed similar decreasing trends (Kim et al, 2017). Consequently, it is reasonable to assume that other hydrophobic hazardous chemicals such as antifouling biocides present the same spatial trends across the sampling sites (Artifon et al, 2016;Castro and Fillmann, 2012;Del Brio et al, 2016).…”

Section: Chemical Contamination Of Surface Sedimentssupporting

confidence: 60%

“…Wastewaters from urban, port and industrial activities are released in Santos Estuarine System (SES) that flows into Santos Bay (Harari and Camargo, 1998). Several studies pointed out SES as a hot spot of hazardous chemicals, presenting estuary to bay gradient of trace metals (Kim et al, 2017), organic contaminants and toxicity (Abessa et al, 2005;Buruaem et al, 2013;Cesar et al, 2014;Torres et al, 2015).…”

Section: Study Area and Samplingmentioning

confidence: 99%

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Shell alterations in limpets as putative biomarkers for multi-impacted coastal areas

Begliomini

Maciel

Almeida

et al. 2017

Environmental Pollution

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During the last years, shell alterations in gastropods have been proposed as tools to be used in monitoring programs. However, no studies were so far performed investigating the relationships among shell parameters and classical biomarkers of damage. The relationship between shell alterations (biometrics, shape and elemental composition) and biomarkers (LPO and DNA strand break) was evaluated in the limpet L. subrugosa sampled along a contamination gradient in a multi-impacted coastal zone from southeastern Brazil. Statistically significant differences were detected among sites under different pollution levels. The occurrence of shell malformations was consistent with environmental levels of several hazardous substances reported for the studied area and related to lipid peroxidation and DNA damage. In addition, considering the low mobility, wide geographic distribution, ease of collection and abundance of limpets in coastal zones, this putative tool may be a cost-effective alternative to traditional biomarkers. Thus, shell alterations in limpets seem to be good proxies for assessing biological adverse effects in multi-impacted coastal zones.

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Section: Chemical Contamination Of Surface Sedimentssupporting

confidence: 60%

Section: Study Area and Samplingmentioning

confidence: 99%

Shell alterations in limpets as putative biomarkers for multi-impacted coastal areas

Begliomini

Maciel

Almeida

et al. 2017

Environmental Pollution

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“…The highest correlations were for Al, Fe, Cr, Ni, Sc, V and the fine fraction (mud) content. Al, Fe, Sc and V are considered proxies for particle size, as they are lithogenic and conservative (Elkady et al, 2015;Wang et al, 2015;Kim et al, 2017), and a high correlation is expected. However, high correlations for the other metals (As, Cu, Cr, Ni, Pb and Zn) are further evidence of the absence of contamination since these elements vary with grain size.…”

Section: Resultsmentioning

confidence: 99%

“…Some are considered essential micronutrients, while others do not possess known biological function and, depending on the oxidation state, present extreme toxicity, necessitating the monitoring of aquatic environments (Karedede-Akin & Ünlü, 2007). Thus, sediment has been widely used as an environmental quality indicators (e.g., Bordon et al, 2011;Buruaem et al, 2013;Kim et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Trace elements in an adjacent channel of an anthropized area: a case study of Baixada Santista, Southeastern Brazil

Salaroli¹,

Kim²,

Angeli³

et al. 2024

Ecotoxicol. Environ. Contam.

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In recent decades, due to intensive industrialization, the Baixada Santista has undergone an intense process of environmental degradation. The metals are toxic and persistent in varying concentrations and oxidation states and may be incorporated in sediments and biota. Thus, understanding the importance of this contamination is necessary for coastal planning. This study provides a basis for understanding the levels of metal and As contamination in the Bertioga Channel (SP). The levels of Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Sc, V and Zn in superficial sediment samples were determined by ICP-OES. The degree of sediment contamination was evaluated according to the sediment quality standards set by the Canadian environmental agency (ISQG and PEL) and by statistical tests. All values were below PEL, and most of the sample values were below ISQG, except for As, Cu and Pb. From a cluster analysis, it was possible to differentiate eastern and western parts of the channel due to their distinct hydrodynamic patterns. Furthermore, it was possible to separate the trace elements by geochemical behavior, in which Cu, Pb and Zn were linked to a small anthropogenic contribution. Thus, this study detected small anthropogenic contributions from an adjacent channel of an anthropized area, but most of the results were linked to natural geochemical processes.

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“…Juntamente com essas análises, existem dois aspectos que devem ser levados em consideração nesses tipos de estudo: o estabelecimento de uma cronologia confiável (MAHIQUES et al, 2013;COSTA et al, 2016;FERREIRA et al, 2016;MAHU et al, 2016) e a comparação dos níveis encontrados com níveis de base (KIM et al, 2017). Tais comparações devem ser realizadas, uma vez que os metais são encontrados naturalmente em solos e sedimentos sem impacto antrópico, apresentando concentrações derivadas do intemperismo das rochas.…”

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Evolução temporal de parâmetros geoquímicos e mineralógicos em testemunhos sedimentares do estuário de Caravelas, Bahia, Brasil

Angeli¹

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Use of a chemometric tool to establish the regional background and assess trace metal enrichment at Baixada Santista – southeastern Brazil

Cited by 43 publications

References 28 publications

Shell alterations in limpets as putative biomarkers for multi-impacted coastal areas

Shell alterations in limpets as putative biomarkers for multi-impacted coastal areas

Trace elements in an adjacent channel of an anthropized area: a case study of Baixada Santista, Southeastern Brazil

Evolução temporal de parâmetros geoquímicos e mineralógicos em testemunhos sedimentares do estuário de Caravelas, Bahia, Brasil

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