Occurence of Trace Metals in the Environment An Overview

Woolrich, Paul

doi:10.1080/0002889738506837

“…It is widely distributed in a diverse range of rocks, soils, minerals and atmospheric dust (Barksdale, 1968). According to Woolrich (1973), Ti ranges in concentration in the air from 0.003 to 0.07 ppb. It is considered a weathering-resistant, immobile mineral, generally insoluble and not mobilized by acidification (Norton et al, 1992;Schaetzl, Mikesell & Velbel, 2006).…”

Section: Titaniummentioning

confidence: 99%

Metallic elements and oxides and their relevance to Laurentian Great Lakes geochemistry

Aliff¹,

Reavie²,

Post³

et al. 2020

PeerJ

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The Laurentian Great Lakes are the most studied system in lake geochemistry and have well-preserved chronological profiles. Metals play numerous critical roles in natural and anthropogenic characteristics of lake ecosystems, so patterns in the historical records of metals from sedimentary cores provide important information about environmental baselines and human impacts. Relevant studies of Great Lakes geochemistry are listed, and we follow with encyclopedic descriptions of metals and their oxides in the lakes. These descriptions include likely natural and anthropogenic sources of elements, their known history from previous paleoecological studies, and their status as potential contaminants of concern. Despite the well-studied geology of the Great Lakes catchment, sourcing elements was sometimes difficult due to materials often being moved long distances by glaciation and the global prevalence of atmospheric pollutants. We summarized available information on metals and their roles as geochemical indicators in the Great Lakes.

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“…It is widely distributed in a diverse range of rocks, soils, minerals, and atmospheric dust (Barksdale, 1968). According to Woolrich (1973), Ti ranges in concentration in the air from 0.003-0.07 ppb. It is considered a weathering-resistant, immobile mineral, generally insoluble and not mobilized by acidification (Norton, Binford & Kahl, 1992;Schaetzl, Mikesell & Velbel, 2006).…”

Section: Titaniummentioning

confidence: 99%

Peer Review #2 of "Metallic elements and oxides and their relevance to Laurentian Great Lakes geochemistry (v0.2)"

2020

0

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The Laurentian Great Lakes are the most studied system in lake geochemistry and have well-preserved chronological profiles. Metals play numerous critical roles in natural and anthropogenic characteristics of lake ecosystems, so patterns in the historical records of metals from sedimentary cores provide important information about environmental baselines and human impacts. Relevant studies of Great Lakes geochemistry are listed, and we follow with encyclopedic descriptions of metals and their oxides in the lakes. These descriptions include likely natural and anthropogenic sources of elements, their known history from previous paleoecological studies, and their status as potential contaminants of concern. Despite the well-studied geology of the Great Lakes catchment, sourcing elements was sometimes difficult due to materials often being moved long distances by glaciation and the global prevalence of atmospheric pollutants. We summarized available information on metals and their roles as geochemical indicators in the Great Lakes.

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“…Woolrich (1973) found that mercury exists in the environment at an overall concentration of approximately 0.2 ppm. Lake Albufera (Valencia, Spain) and the surrounding rice-field waters are being subject to very heavy loads of sewage and toxic industrial residues (including heavy metals and pesticides) from the many urban and wastewaters in this area (Roselló, 1983).…”

Section: Determination Of Mercury By Cold-vapour Technique In Severalmentioning

confidence: 98%

Determination of mercury by cold‐vapour technique in several tissues of treated American red crayfish (Procambarus clarkii)

Ramo

¹

,

Pastor

²

,

Dı́az-Mayans

³

et al. 1988

Journal of Environmental Science and Health . Part A: Environme

3

0

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Adult intermolt specimens of American red crayfish (Procambarus clarkii) collected from Lake Albufera (Valencia, Spain), were exposed to mercury during 96 h. The Hg-concentrations used were 50, 100, and 250 µg Hg/1 as Cl 2 Hg. The content of mercury in muscle, midgut gland, antennal glands and gills was investigated. Determinations of mercury were made by cold-vapour technique and AAS. The mercury levels in all examinated tissues increased significantly (ANOVA test, p < 0.01) with increasing Hg-concentration in the water. INTRODUCTION.Aquatic pollution with mercury and its resulting uptake and accumulation by crustaceans and other aquatic animals has been studied for a long time. Aquatic ecosystems are particular concern since many animals in these environments concentrate large amounts of mercury rapidly (Friberg, 1971;Ackefors, 1970).

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Occurence of Trace Metals in the Environment An Overview

Cited by 21 publications

References 1 publication

Metallic elements and oxides and their relevance to Laurentian Great Lakes geochemistry

Metallic elements and oxides and their relevance to Laurentian Great Lakes geochemistry

Peer Review #2 of "Metallic elements and oxides and their relevance to Laurentian Great Lakes geochemistry (v0.2)"

Determination of mercury by cold‐vapour technique in several tissues of treated American red crayfish (Procambarus clarkii)

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