Dissolved and particulate metals in water from Sonora Coast: a pristine zone of Gulf of California

García-Rico, Leticia; Tejeda-Valenzuela, Lourdes; Jara-Marini, Martín E.; Gómez-Álvarez, Agustín

doi:10.1007/s10661-010-1570-9

Cited by 15 publications

(9 citation statements)

References 24 publications

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“…In comparison to Cr and Ni, the particulate forms of copper and lead at most of the sites dominate over the dissolved phase. This is in accordance with their tendency to show affinity towards solid phase (Garcia-Rico et al, 2011). Partition coefficients for the partitioning of metals between dissolved and particulate forms were calculated (Table 5).…”

Section: Particulate Phasesupporting

confidence: 77%

Trace metal fractionation in water and sediments of an urban river stretch

Kumar

Rani

Gupta

et al. 2014

Chemical Speciation & Bioavailability

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In this study, the fractionation and ecotoxic potential of Cr, Ni, Cu and Pb in water and sediments of the river Yamuna (Delhi stretch) is presented. The river water is used for various purposes such as irrigation, industrial, domestic and drinking. The investigations suggest that the availability of metals in water follows the sequence Ni>Cr>Pb>Cu whereas a different pattern (Pb>Cu>Ni>Cr) is observed in sediments. Statistically significant spatial variations are indicated by two-way ANOVA in different geochemical forms of the metals and physicochemical parameters of water and sediments of the river Yamuna. Principal component analysis (PCA) suggests a similar source for all four metals probably from the sewage from municipal drains. PCA also indicates some independent sources of Cu and Pb. The hot spots were identified using hierarchical cluster analysis considering bioavailable forms of the metals in water and sediments as objects and the sampling sites as variables. Risk assessment code analysis indicates that metals generally pose medium to high risk at different sites. However, at a few locations either Ni or Pb cross the level of very high ecological risk.

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Section: Particulate Phasesupporting

confidence: 77%

Trace metal fractionation in water and sediments of an urban river stretch

Kumar

Rani

Gupta

et al. 2014

Chemical Speciation & Bioavailability

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“…The sediments herein have abundant concentrations of metal sulfites [25]. The GC is also characterized by the presence of mining complexes and other industrial and urban activities along the coast, responsible for releasing high amounts of metals into this ecosystem (especially Cd, Cu, Fe, Pb and Zn) [24,26]. García-Rico et al [26] found high levels of Cd, The semi-enclosed Gulf of California (GC) is a marginal sea on the Pacific coast of Mexico and encompasses one of the world's five most productive and diverse ecosystems, being an important feeding ground for a wide variety of marine organisms [20,21].…”

Section: Samplingmentioning

confidence: 99%

“…The GC is also characterized by the presence of mining complexes and other industrial and urban activities along the coast, responsible for releasing high amounts of metals into this ecosystem (especially Cd, Cu, Fe, Pb and Zn) [24,26]. García-Rico et al [26] found high levels of Cd, The semi-enclosed Gulf of California (GC) is a marginal sea on the Pacific coast of Mexico and encompasses one of the world's five most productive and diverse ecosystems, being an important feeding ground for a wide variety of marine organisms [20,21]. The Guaymas Basin, in the GC, is characterized by the presence of a hydrothermal vent that has an organic-rich sedimentary cover enriched in Mn provided by the Colorado River runoff [22,23].…”

Section: Samplingmentioning

confidence: 99%

“…The sediments herein have abundant concentrations of metal sulfites [25]. The GC is also characterized by the presence of mining complexes and other industrial and urban activities along the coast, responsible for releasing high amounts of metals into this ecosystem (especially Cd, Cu, Fe, Pb and Zn) [24,26]. García-Rico et al [26] found high levels of Cd, Pb and Zn in the dissolved fraction, while detecting high levels of Cu, Fe and Mn in the particulate fraction.…”

Section: Samplingmentioning

confidence: 99%

“…The GC is also characterized by the presence of mining complexes and other industrial and urban activities along the coast, responsible for releasing high amounts of metals into this ecosystem (especially Cd, Cu, Fe, Pb and Zn) [24,26]. García-Rico et al [26] found high levels of Cd, Pb and Zn in the dissolved fraction, while detecting high levels of Cu, Fe and Mn in the particulate fraction. The Partition coefficients of Fe, Mn and Cu were found in high levels, suggesting high metal adsorption onto sediments.…”

Section: Samplingmentioning

confidence: 99%

See 2 more Smart Citations

Bioaccumulation of Trace Elements in Myctophids in the Oxygen Minimum Zone Ecosystem of the Gulf of California

Figueiredo

Baptista

Grilo

et al. 2020

Oceans

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Myctophids are key members of mesopelagic communities with a world biomass estimated at 600 million tons. They play a central role in oceanic food webs and are known to perform diel vertical migrations, crossing the thermocline and reaching the oxygen minimum zone, however, very scarce information exists on trace element content in these organisms. Therefore, the trace elemental composition (Cr, Mn, Co, Ni, Cu, Zn, As, Se, Cd and Pb) of Triphoturus mexicanus and Benthosema panamense specimens was determined. Zinc (Zn) was the most common trace element for both species, T. mexicanus presented 39.8 µg.g−1 dw and B. panamense 30.6 µg.g−1 dw. Contrasting, for T. mexicanus the less abundant trace element was Ni (0.332 µg.g−1 dw) and for B. panamense was Pb (0.236 µg.g−1 dw). T. mexicanus exhibited significantly higher concentrations of Cr, Cu, Zn and Pb in comparison to B. panamense, and these differences seemed to be related to inherent physiological and/or ecological traits rather than environmental element availability. These diel vertical migrators are crucial in the energy transfer between the deep-sea and epipelagic zones (and vice-versa), and the estimation of the Biomagnification Factor (based on Cu, Zn, Cd and Pb) levels revealed that both T. mexicanus and B. panamense play a major role in trace element transfer to higher trophic levels in the pelagic food web of the Gulf of California.

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Fractionation and risk assessment of Fe and Mn in surface sediments from coastal sites of Sonora, Mexico (Gulf of California)

Jara-Marini

García-Camarena

Gómez-Álvarez

et al. 2015

Environ Monit Assess

Self Cite

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The aim of this study was to evaluate Fe and Mn distribution in geochemical fractions of the surface sediment of four oyster culture sites in the Sonora coast, Mexico. A selective fractionation scheme to obtain five fractions was adapted for the microwave system. Surface sediments were analyzed for carbonates, organic matter contents, and Fe and Mn in geochemical fractions. The bulk concentrations of Fe ranged from 10,506 to 21,918 mg/kg (dry weight, dry wt), and the bulk concentrations of Mn ranged from 185.1 to 315.9 mg/kg (dry wt) in sediments, which was low and considered as non-polluted in all of the sites. The fractionation study indicated that the major geochemical phases for the metals were the residual, as well as the Fe and Mn oxide fractions. The concentrations of metals in the geochemical fractions had the following order: residual >> Fe and Mn oxides > organic matter > carbonates > interchangeable. Most of the Fe and Mn were linked to the residual fraction. Among non-residual fractions, high percentages of Fe and Mn were linked to Fe and Mn oxides. The enrichment factors (EFs) for the two metals were similar in the four studied coasts, and the levels of Fe and Mn are interpreted as non-enrichment (EF < 1) because the metals concentrations were within the baseline concentrations. According to the environmental risk assessment codes, Fe and Mn posed no risk and low risk, respectively. Although the concentrations of Fe and Mn were linked to the residual fraction, the levels in non-residual fractions may significantly result in the transference of other metals, depending on several physico-chemical and biological factors.

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Dissolved and particulate metals in water from Sonora Coast: a pristine zone of Gulf of California

Cited by 15 publications

References 24 publications

Trace metal fractionation in water and sediments of an urban river stretch

Trace metal fractionation in water and sediments of an urban river stretch

Bioaccumulation of Trace Elements in Myctophids in the Oxygen Minimum Zone Ecosystem of the Gulf of California

Fractionation and risk assessment of Fe and Mn in surface sediments from coastal sites of Sonora, Mexico (Gulf of California)

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