Environmental contamination and seasonal variation of metals in soils, plants and waters in the paddy fields around a PbZn mine in Korea

Jung, Myung Chae; Thornton, I.

doi:10.1016/s0048-9697(97)05434-x

Cited by 141 publications

(78 citation statements)

References 26 publications

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“…Plants grown in mine-tailing amended soils take a smaller proportion of metals when compared to plants in control areas (19,20) with an effect that is most severe for the metals Cu and Pb and least severe for the metals Zn and Cd.…”

Section: Metal Mixtures and Kids: Exposure And Dosementioning

confidence: 99%

The Challenge Posed to Children's Health by Mixtures of Toxic Waste: The Tar Creek Superfund Site as a Case-Study

Shine²,

Wright

2007

Pediatric Clinics of North America

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Section: Metal Mixtures and Kids: Exposure And Dosementioning

confidence: 99%

The Challenge Posed to Children's Health by Mixtures of Toxic Waste: The Tar Creek Superfund Site as a Case-Study

Shine²,

Wright

2007

Pediatric Clinics of North America

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“…Children and adults encounter elevated exposures when they consume vegetables grown on soil with elevated Pb content (Stalikas et al, 1997). For instance, daily Pb intake from rice grown near a Pb ± Zn mine in Korea is estimated at 126 g (Jung and Thornton, 1997). Pb bioaccumulation can also be found in the flesh of animals (Amundsen et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Evaluations of primary metals from NHEXAS Arizona: distributions and preliminary exposures

O'Rourke

Water

Jin

et al. 1999

J Expo Sci Environ Epidemiol

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NHEXAS AZ is a multimedia, multipathway exposure assessment survey designed to evaluate metals and other analytes. This paper reports the analytespecific concentration distributions in each of the media examined (air, soil, house dust, food, beverage, and water), for various methodologies used (inductively coupled plasma-atomic emission spectroscopy and hydride generation-atomic absorption spectroscopy). Results are reported for the five primary metals (Pb, As, Cd, Cr, and Ni). Ingestion was the most important pathway of exposure. Metal concentrations in air were very low (ng / m 3 ) and found only above the 90th percentile. Metals were commonly found in house dust and soil. Exposure transfer coefficients minimize the importance of this component for those over the age of 6 years. When ranked by exposure, food, beverage, and water appeared to be the primary contributors of metal exposure in NHEXAS AZ. For instance, at the 90th percentile, Pb was undetected in air, found at 131 and 118 g / m 3 in floor dust and soil, respectively, and measured at 16 g / kg in food, 7.1 g / kg in beverage, and 2.0 and 1.3 g / l in drinking and tap water, respectively. We calculated preliminary estimates of total exposure (g /day) for each participant and examined them independently by age, gender, and ethnicity as reported by the subjects in the NHEXAS questionnaire. At the 90th percentile for Pb, total exposures were 64 g /day across all subjects (n =176); adult men (n = 55) had the greatest exposure (73 g /day) and children (n =35) the least (37 g /day). Hispanics (n = 54) had greater exposure to Pb (68 g /day) than non-Hispanics (n =119; 50 g /day), whereas non-Hispanics had greater exposure for all other metals reported. These results have implications related to environmental justice. The NHEXAS project provides information to make informed decisions for protecting and promoting appropriate public health policy.

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“…are positively correlated with OM; the contents of Ni and As are negatively correlated with OM by conducting a correlation analysis on seven kinds of heavy metal in soil pH and OM in the study area. Likely, other researchers investigated that phytotoxicity and availability of heavy metal is strongly influenced by the pH and OM of soil (Foy et al, 1978;Fernandes and Henriques, 1991;Das et al, 1997).. Jung and Thornton (1997) investigation of relatively high metal concentrations in rice found it to occur under conditions of decreased pH and increasing OM in soil. Other studies also showed that heavy metal concentrations in rice have a significant negative correlation with soil pH and are positively correlated with OM (Fu et al, 2008;Liao et al, 2008;Hang et al, 2009).…”

Section: Soil Parametersmentioning

confidence: 99%

“…Some researchers have investigated meteorological factors, such as air temperature, relative humidity, sunlight, precipitation, etc., and have seen that they have important influence on the diffusion of metals in plants (Cui et al, 2004;Pan et al, 2007). The most important factors affecting metal bioavailability in paddy soil are temperature, sunlight and precipitation (Jung and Thornton, 1997;Cheng et al, 2005). So, temperature, sunlight and precipitation can belong to the set of possible predictors of heavy metal concentrations in rice.…”

Section: Meteorological Parametersmentioning

confidence: 99%

Dynamic Fuzzy Neural-Network Model for Estimating Heavy Metal Concentration in Rice Using Spectral Indices and Environmental Parameters

Liu¹,

Liu²

2011

Artificial Neural Networks - Application

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Environmental contamination and seasonal variation of metals in soils, plants and waters in the paddy fields around a PbZn mine in Korea

Cited by 141 publications

References 26 publications

The Challenge Posed to Children's Health by Mixtures of Toxic Waste: The Tar Creek Superfund Site as a Case-Study

The Challenge Posed to Children's Health by Mixtures of Toxic Waste: The Tar Creek Superfund Site as a Case-Study

Evaluations of primary metals from NHEXAS Arizona: distributions and preliminary exposures

Dynamic Fuzzy Neural-Network Model for Estimating Heavy Metal Concentration in Rice Using Spectral Indices and Environmental Parameters

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