Depth Profiles of Cu, Cr, and Zn in Lake Orta Sediments (Northern Italy)

Provini, A.; Gaggino, G. F.

doi:10.1007/978-1-4612-4932-0_15

Cited by 7 publications

(2 citation statements)

References 5 publications

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“…All forms of aquatic life were greatly affected by this chemical pollution, and by 1929 the pelagic and benthic communities were virtually absent. Oxidation of ammonia led to a progressive accumulation of nitrates and a drastic acidification of the water column (Provini et al, 1986). Since the early 1950s, discharges from several electroplating plants on a tributary, the Lagna River, have added to the contamination of the lake through discharges of nickel and chromium.…”

Section: Introductionmentioning

confidence: 99%

Toxicity Identification Evaluation of Lake Orta (Northern Italy) Sediments Using the Microtox System

Guzzella

Bartone

Ross

et al. 1996

Ecotoxicology and Environmental Safety

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Section: Introductionmentioning

confidence: 99%

Toxicity Identification Evaluation of Lake Orta (Northern Italy) Sediments Using the Microtox System

Guzzella

Bartone

Ross

et al. 1996

Ecotoxicology and Environmental Safety

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“…Single and sequential extractions are performed on the certified reference material BCR-701. This material has been collected from Lake Orta (Piemonte, Italy), which is known for serious metal contamination due to industrial discharges (Provini and Gaggino, 1986;Baudo et al, 1989). Details on the preparation and the certification of the BCR-701 sediment are found in Pueyo et al (2001), Quevauviller (2002) and Kubová et al (2004).…”

Section: Certified Reference Sedimentmentioning

confidence: 99%

Why comparison between different chemical extraction procedures is necessary to better assess the metals availability in sediments

Cuvier

Leleyter²,

Probst

et al. 2021

Journal of Geochemical Exploration

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Single and sequential extractions are current and useful tools for estimating the availability of metals in soils or sediments. Many chemical extraction procedures have been proposed in the literature, making the comparison difficult. This study compares the data consistency of the potential availability given by four chemical extractions commonly found in the literature: ➢ two single procedures (using dilute HCl or EDTA as reactant) ➢ two sequential procedures (the modified standardized 3-steps procedure of the Standards, Measurements and Testing Programme (SMTP), namely BCR-extraction, and the 7-steps procedure of Leleyter and Probst (1999), namely LP-extraction).The leaching procedures are all performed on the reference lake sediment CRM BCR-701, used as a reference to assess the accuracy of the modified standardized procedure of Rauret et al. (1999). The results show similar availabilities between HCl and EDTA single leaches for Zn, Cu, Cr and Pb and between HCl and the BCR procedures for Zn, Cu, Cr and Ni. The LP-extraction is the most aggressive of the four tested procedures (except for Pb extraction), mainly due to a better extraction of the exchangeable fraction, by a better dissolution of the acidosoluble phase and particularly to a better dissolution of the amorphous and crystalline Fe-oxides. The comparison between the four procedures reveals a major problem of Pb extraction, potentially due to the formation of lead precipitates during HCl and the LP-extractions, even if an overestimation of the lead availability by the BCR procedure cannot be excluded.

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Distribution of nutrients, trace elements, PAHs and radionuclides in sediment cores from Lake Varese (N. Italy)

Provini

Guido

Galassi

et al. 1989

Sediment/Water Interactions

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Depth Profiles of Cu, Cr, and Zn in Lake Orta Sediments (Northern Italy)

Cited by 7 publications

References 5 publications

Toxicity Identification Evaluation of Lake Orta (Northern Italy) Sediments Using the Microtox System

Toxicity Identification Evaluation of Lake Orta (Northern Italy) Sediments Using the Microtox System

Why comparison between different chemical extraction procedures is necessary to better assess the metals availability in sediments

Distribution of nutrients, trace elements, PAHs and radionuclides in sediment cores from Lake Varese (N. Italy)

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