The Experts below are selected from a list of 162573 Experts worldwide ranked by ideXlab platform
Aidan Hollis - One of the best experts on this subject based on the ideXlab platform.
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Industrial Concentration, Output, and Trade: An Empirical Exploration
Review of Industrial Organization, 2003Co-Authors: Aidan HollisAbstract:This paper explores the relationship between Concentration, output and trade usingtheory and empirical analysis of matched data on 82 manufacturing industries in seven countries. It finds that the higher is domestic Concentration in an industry compared to International Concentration, the lower is the domestic share of world output and thesmaller are net exports. This relationship persists even when industries with high levelsof Concentration are excluded.
Robert W. Nairn - One of the best experts on this subject based on the ideXlab platform.
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Metal-contaminated potato crops and potential human health risk in Bolivian mining highlands
Environmental Geochemistry and Health, 2017Co-Authors: Alan E. Garrido, William H. J. Strosnider, Robin Taylor Wilson, Janette Condori, Robert W. NairnAbstract:This study assessed metals in irrigation water, soil and potato crops impacted by mining discharges, as well as potential human health risk in the high desert near the historic mining center of Potosí, Bolivia. Metal Concentrations were compared with International Concentration limit guidelines. In addition, an ingested average daily dose and minimum risk level were used to determine the hazard quotient from potato consumption for adults and children. Irrigation water maximum Concentrations of Cd, Pb and Zn in mining-impacted sites were elevated 20- to 1100-fold above International Concentration limit guidelines. Agricultural soils contained total metal Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in agricultural soil guidelines by 22-, 9-, 3- and 12-fold, respectively. Potato tubers in mining-impacted sites had maximum Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in commercially sold vegetables by 9-, 10-, 16- and fourfold, respectively. Using conservative assumptions, hazard quotients (HQ) for potatoes alone were elevated for As, Cd and Pb among children (range 1.1–71.8), in nearly all of the mining-impacted areas; and for As and Cd among adults (range 1.2–34.2) in nearly all of the mining-impacted areas. Only one mining-impacted area had a Pb adult HQ for potatoes above 1 for adults. Toxic trace elements in a major regional dietary staple may be a greater concern than previously appreciated. Considering the multitude of other metal exposure routes in this region, it is likely that total HQ values for these metals may be substantially higher than our estimates.
Alan E. Garrido - One of the best experts on this subject based on the ideXlab platform.
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Metal-contaminated potato crops and potential human health risk in Bolivian mining highlands
Environmental Geochemistry and Health, 2017Co-Authors: Alan E. Garrido, William H. J. Strosnider, Robin Taylor Wilson, Janette Condori, Robert W. NairnAbstract:This study assessed metals in irrigation water, soil and potato crops impacted by mining discharges, as well as potential human health risk in the high desert near the historic mining center of Potosí, Bolivia. Metal Concentrations were compared with International Concentration limit guidelines. In addition, an ingested average daily dose and minimum risk level were used to determine the hazard quotient from potato consumption for adults and children. Irrigation water maximum Concentrations of Cd, Pb and Zn in mining-impacted sites were elevated 20- to 1100-fold above International Concentration limit guidelines. Agricultural soils contained total metal Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in agricultural soil guidelines by 22-, 9-, 3- and 12-fold, respectively. Potato tubers in mining-impacted sites had maximum Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in commercially sold vegetables by 9-, 10-, 16- and fourfold, respectively. Using conservative assumptions, hazard quotients (HQ) for potatoes alone were elevated for As, Cd and Pb among children (range 1.1–71.8), in nearly all of the mining-impacted areas; and for As and Cd among adults (range 1.2–34.2) in nearly all of the mining-impacted areas. Only one mining-impacted area had a Pb adult HQ for potatoes above 1 for adults. Toxic trace elements in a major regional dietary staple may be a greater concern than previously appreciated. Considering the multitude of other metal exposure routes in this region, it is likely that total HQ values for these metals may be substantially higher than our estimates.
William H. J. Strosnider - One of the best experts on this subject based on the ideXlab platform.
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Metal-contaminated potato crops and potential human health risk in Bolivian mining highlands
Environmental Geochemistry and Health, 2017Co-Authors: Alan E. Garrido, William H. J. Strosnider, Robin Taylor Wilson, Janette Condori, Robert W. NairnAbstract:This study assessed metals in irrigation water, soil and potato crops impacted by mining discharges, as well as potential human health risk in the high desert near the historic mining center of Potosí, Bolivia. Metal Concentrations were compared with International Concentration limit guidelines. In addition, an ingested average daily dose and minimum risk level were used to determine the hazard quotient from potato consumption for adults and children. Irrigation water maximum Concentrations of Cd, Pb and Zn in mining-impacted sites were elevated 20- to 1100-fold above International Concentration limit guidelines. Agricultural soils contained total metal Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in agricultural soil guidelines by 22-, 9-, 3- and 12-fold, respectively. Potato tubers in mining-impacted sites had maximum Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in commercially sold vegetables by 9-, 10-, 16- and fourfold, respectively. Using conservative assumptions, hazard quotients (HQ) for potatoes alone were elevated for As, Cd and Pb among children (range 1.1–71.8), in nearly all of the mining-impacted areas; and for As and Cd among adults (range 1.2–34.2) in nearly all of the mining-impacted areas. Only one mining-impacted area had a Pb adult HQ for potatoes above 1 for adults. Toxic trace elements in a major regional dietary staple may be a greater concern than previously appreciated. Considering the multitude of other metal exposure routes in this region, it is likely that total HQ values for these metals may be substantially higher than our estimates.
Robin Taylor Wilson - One of the best experts on this subject based on the ideXlab platform.
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Metal-contaminated potato crops and potential human health risk in Bolivian mining highlands
Environmental Geochemistry and Health, 2017Co-Authors: Alan E. Garrido, William H. J. Strosnider, Robin Taylor Wilson, Janette Condori, Robert W. NairnAbstract:This study assessed metals in irrigation water, soil and potato crops impacted by mining discharges, as well as potential human health risk in the high desert near the historic mining center of Potosí, Bolivia. Metal Concentrations were compared with International Concentration limit guidelines. In addition, an ingested average daily dose and minimum risk level were used to determine the hazard quotient from potato consumption for adults and children. Irrigation water maximum Concentrations of Cd, Pb and Zn in mining-impacted sites were elevated 20- to 1100-fold above International Concentration limit guidelines. Agricultural soils contained total metal Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in agricultural soil guidelines by 22-, 9-, 3- and 12-fold, respectively. Potato tubers in mining-impacted sites had maximum Concentrations of As, Cd, Pb and Zn that exceeded Concentration limits in commercially sold vegetables by 9-, 10-, 16- and fourfold, respectively. Using conservative assumptions, hazard quotients (HQ) for potatoes alone were elevated for As, Cd and Pb among children (range 1.1–71.8), in nearly all of the mining-impacted areas; and for As and Cd among adults (range 1.2–34.2) in nearly all of the mining-impacted areas. Only one mining-impacted area had a Pb adult HQ for potatoes above 1 for adults. Toxic trace elements in a major regional dietary staple may be a greater concern than previously appreciated. Considering the multitude of other metal exposure routes in this region, it is likely that total HQ values for these metals may be substantially higher than our estimates.