Lead Levels in Blood from Cattle Residing near a Lead Smelter

Neuman, Dennis R.; Dollhopf, D.J.

doi:10.2134/jeq1992.00472425002100020005x

Cited by 13 publications

(7 citation statements)

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“…Consequently, they are inadvertently exposed to gradual accumulation of these heavy metals. In a similar study, high Pb level was found in the blood sample of cattle reared near a smelter plant (Neuman and Dollhopt, 1992). Table 4 shows the correlation coefficient matrix showing the association among concentrations of heavy metals in the soil and their relationships with soil factors.…”

Section: Resultsmentioning

confidence: 78%

A comparative study of the influence of heavy metals on soil and crops growing within quarry environment at Akamkpa, Cross River State, Nigeria

Ekpo¹,

Nzegblue²,

Asuquo³

2012

Global Journal of Agricultural Sciences

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A comparative study of the influence of heavy metals on soils and crops grown within quarry environment at Akamkpa, Cross River State was conducted in 2009 year. The study area was delineated into3 zones P1, P11, P111 based on the intensity of exposure to tailings, wind speed, wind direction and distance from the quarry. The selected sample distances were (0km, 1km and 3km as control). Soil sample with the depth of (0-15cm), cassava leaves and, fluted pumpkin leaves were collected separately from each of the sampling area and analyzed for chemical characteristics. The concentration of heavy metals Pb, Cr, Ni, Cd, Mn, Fe and Cu in the leaves samples of fluted pumpkin and cassava in sample position (P1) were (25.

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Section: Resultsmentioning

confidence: 78%

A comparative study of the influence of heavy metals on soil and crops growing within quarry environment at Akamkpa, Cross River State, Nigeria

Ekpo¹,

Nzegblue²,

Asuquo³

2012

Global Journal of Agricultural Sciences

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“…Mean blood lead concentrations in wood mice from Zoersel, Fort 4, and Fort 7 (Table 2) were comparable to this baseline but elevated up to threefold in mice from our most polluted sites (UM and Fort 8) (Table 2). Elevated blood levels of lead have been similarly reported in children [39] and cattle [40] from areas contaminated with lead by mining or metal smelting. Nevertheless, blood levels of lead in UM and Fort 8 are much lower than 350 μg/L or higher, which are concentrations associated with clinical symptoms of lead poisoning in mammals [35].…”

Section: Discussionmentioning

confidence: 99%

Metal blood levels and hematological characteristics in wood mice (Apodemus sylvaticus L.) along a metal pollution gradient

Rogival¹,

Scheirs

Coen³

et al. 2006

Enviro Toxic and Chemistry

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The present study evaluated whether blood could be used as a nondestructive tool for monitoring metal exposure and related hematological effects in wood mice (Apodemus sylvaticus L.) living along a metal pollution gradient. Soil concentrations of arsenic, cadmium, copper, lead, silver, and zinc decreased with distance from the emission source. Blood levels of cadmium and lead differed significantly among sites, whereas those of the other metals did not. Blood levels of cadmium and lead correlated with soil concentrations of cadmium and lead, respectively. No such significant relationships were found for the other measured metals. Hematocrit levels decreased in wood mice from the most polluted site (45.96% +/- 0.53% [mean +/- standard error]) compared to the reference site (48.04% +/- 0.47%). A negative correlation between hematocrit and blood levels of cadmium and lead was found. Erythrocyte count, leukocyte count, hemoglobin concentration, mean corpuscular hemoglobin (average wt of hemoglobin in a red blood cell in pg), and lysozyme activity did not differ among study sites. Mean corpuscular volume (average volume of a red blood cell in microm3) and mean corpuscular hemoglobin concentration (average proportion of hemoglobin in a red blood cell as a %) differed among study sites but showed no relationship with metal exposure. We conclude that whole blood from mice can be used for nondestructive monitoring of the exposure to nonessential metals under natural conditions. The present results indicate that decreased hematocrit levels may be an early warning signal for a negative impact of metal exposure on the oxygen-transport capacity of blood in wood mice in their natural environment.

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“…Other investigations (Healy 1974 andThornton 1974) reported similar soil ingestion rates. Lead levels in blood from cattle residing near the East Helena Smelter Superfund Site (Neuman and Dollhopf 1992) were significantly correlated with soil concentrations of Pb, as well as vegetation concentrations, and distance (negative correlation) from the Pb smelter. It was postulated that soil concentrations may be more important than forage as a source of Pb to the cattle in the East Helena investigation.…”

Section: Incidental Ingestion Of Contaminated Soilmentioning

confidence: 95%

Metal Levels in Vegetation Growing on in Situ Treated Acid Metalliferous Mine Wastes in Montana

Neuman¹

2009

JASMR

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The purpose of in situ or in-place treatment of metal mine wastes is to immobilize contaminants within the soil/plant complex, reduce metal and arsenic movement to groundwater, reduce metal and arsenic movement to receiving streams, stabilize the landscape from wind erosion, and to provide a functional ecosystem compatible with current and future land uses. In-place treatment includes the incorporation of chemical and biological amendments to provide a hospitable rootzone, and to select plant species that can thrive in the newly amended environment. During in-place treatment, metals are chemically precipitated, and/or sequestered by complexation and sorption mechanisms within the mine wastes/ contaminated soils. Metal availability to plants is minimized, and metal leaching into groundwater is reduced. Metals and arsenic that remain in soil solution are immobilized via chemical reactions at plant root surfaces. The selection of plant species for in-place treatment is based on availability of seed or seedlings, the species' relative lack of ability to translocate (or move) metals and arsenic from the roots into the above ground biomass of the plant, and land use and management considerations. In-place treatment does not remove contaminants from the soil. As a consequence, short-term and long-term effectiveness of in-place treatment has been and continues to be debated. One concern is the potential toxicity to livestock and wildlife from the contaminants in soils and/or plants. This paper provides vegetation metal data from several Superfund and AML sites at which in-place treatment has been used as a remedial strategy. Interpretations of these data based on plant toxicity and residual risk to terrestrial receptors including grazing animals are presented.

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Lead Levels in Blood from Cattle Residing near a Lead Smelter

Cited by 13 publications

References 0 publications

A comparative study of the influence of heavy metals on soil and crops growing within quarry environment at Akamkpa, Cross River State, Nigeria

A comparative study of the influence of heavy metals on soil and crops growing within quarry environment at Akamkpa, Cross River State, Nigeria

Metal blood levels and hematological characteristics in wood mice (Apodemus sylvaticus L.) along a metal pollution gradient

Metal Levels in Vegetation Growing on in Situ Treated Acid Metalliferous Mine Wastes in Montana

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