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Heavy metal mobility in runoff water and absorption by eggplant fruits from sludge treated soil.
J Environ Sci Health B 2008; 43(6):526-32JE

Abstract

Sewage sludge addition to agricultural lands requires judicious management to avoid environmental risks arising from heavy metal and nitrate contamination of surface water and accumulation in edible plants. A field study was conducted on a silty-loam soil of 10% slope at Kentucky State University Research Farm. Eighteen plots of 22 x 3.7 m each were separated using metal borders and the soil in six plots was mixed with sewage sludge and yard waste compost mix (SS-YW) at 15 t acre(-1), six plots were mixed with sewage sludge (SS) at 15 t acre(-1), and six unamended plots that never received sludge were used for comparison purposes. Plots were planted with eggplant, Solanum melongena L. as the test plant. The objectives of this investigation were to: 1) assess the effect of soil amendments on the transport of NO3, NH4, and heavy metals (Cd, Cr, Ni, Pb, Zn, Cu, and Mo) into surface water; 2) investigate the effect of soil amendments on heavy metal bioavailability in eggplant fruits at harvest; and 3) assess chemical and physical properties of soil following addition of soil amendments and their impact on the yield and quality of eggplant fruit. SS-YW treatments reduced runoff water by 63% while plots incorporated with sewage sludge alone reduced runoff water by 37% compared to control treatment. The SS-YW treatments transported more mineral nitrogen (NO3-N and NH4-N) in runoff water than SS treatments. Total marketable yield (lbs acre(-1)) and number of eggplant fruits were greatest in SS-YW treatments. This response may be due to improved soil porosity, water, and nutrient retention of the soil amended with SS-YW mixture. Concentrations of heavy metals in soil amended with sludge were below the U.S. Environmental Protection Agency (USEPA) limits. Chromium, Ni, Zn, and Cu were taken up by eggplant fruits but their concentrations were below the Codex Commission allowable levels.

Authors+Show Affiliations

Department of Plant and Soil Science, Kentucky State University, Frankfort, Kentucky 40601-2355, USA. george.antonious@kysu.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

18665990

Citation

Antonious, George F., et al. "Heavy Metal Mobility in Runoff Water and Absorption By Eggplant Fruits From Sludge Treated Soil." Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes, vol. 43, no. 6, 2008, pp. 526-32.
Antonious GF, Turley ET, Sikora F, et al. Heavy metal mobility in runoff water and absorption by eggplant fruits from sludge treated soil. J Environ Sci Health B. 2008;43(6):526-32.
Antonious, G. F., Turley, E. T., Sikora, F., & Snyder, J. C. (2008). Heavy metal mobility in runoff water and absorption by eggplant fruits from sludge treated soil. Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes, 43(6), pp. 526-32. doi:10.1080/03601230802174748.
Antonious GF, et al. Heavy Metal Mobility in Runoff Water and Absorption By Eggplant Fruits From Sludge Treated Soil. J Environ Sci Health B. 2008;43(6):526-32. PubMed PMID: 18665990.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heavy metal mobility in runoff water and absorption by eggplant fruits from sludge treated soil. AU - Antonious,George F, AU - Turley,Eric T, AU - Sikora,Frank, AU - Snyder,John C, PY - 2008/7/31/pubmed PY - 2008/10/16/medline PY - 2008/7/31/entrez SP - 526 EP - 32 JF - Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes JO - J Environ Sci Health B VL - 43 IS - 6 N2 - Sewage sludge addition to agricultural lands requires judicious management to avoid environmental risks arising from heavy metal and nitrate contamination of surface water and accumulation in edible plants. A field study was conducted on a silty-loam soil of 10% slope at Kentucky State University Research Farm. Eighteen plots of 22 x 3.7 m each were separated using metal borders and the soil in six plots was mixed with sewage sludge and yard waste compost mix (SS-YW) at 15 t acre(-1), six plots were mixed with sewage sludge (SS) at 15 t acre(-1), and six unamended plots that never received sludge were used for comparison purposes. Plots were planted with eggplant, Solanum melongena L. as the test plant. The objectives of this investigation were to: 1) assess the effect of soil amendments on the transport of NO3, NH4, and heavy metals (Cd, Cr, Ni, Pb, Zn, Cu, and Mo) into surface water; 2) investigate the effect of soil amendments on heavy metal bioavailability in eggplant fruits at harvest; and 3) assess chemical and physical properties of soil following addition of soil amendments and their impact on the yield and quality of eggplant fruit. SS-YW treatments reduced runoff water by 63% while plots incorporated with sewage sludge alone reduced runoff water by 37% compared to control treatment. The SS-YW treatments transported more mineral nitrogen (NO3-N and NH4-N) in runoff water than SS treatments. Total marketable yield (lbs acre(-1)) and number of eggplant fruits were greatest in SS-YW treatments. This response may be due to improved soil porosity, water, and nutrient retention of the soil amended with SS-YW mixture. Concentrations of heavy metals in soil amended with sludge were below the U.S. Environmental Protection Agency (USEPA) limits. Chromium, Ni, Zn, and Cu were taken up by eggplant fruits but their concentrations were below the Codex Commission allowable levels. SN - 1532-4109 UR - https://www.unboundmedicine.com/medline/citation/18665990/Heavy_metal_mobility_in_runoff_water_and_absorption_by_eggplant_fruits_from_sludge_treated_soil_ L2 - http://www.tandfonline.com/doi/full/10.1080/03601230802174748 DB - PRIME DP - Unbound Medicine ER -