Metal availability in heavy metal-contaminated open burning and open detonation soil

Assessment using soil enzymes, earthworms, and chemical extractions

Sang Hwan Lee, Eul Young Kim, Seunghun Hyun, Jeong-Gyu Kim

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The effects of heavy metal contamination on soil enzyme activity and earthworm health (bioaccumulation and condition) were studied in contaminated soils collected from an formerly open burning and open detonation (OBOD) site. Soil extraction methods were also evaluated using CaCl2 and DTPA solutions as surrogate measures of metal bioavailability and ecotoxicity. Total heavy metal content of the soils ranged from 0.45 to 9.68 mg Cd kg-1, 8.96 to 5103 mg Cu kg-1, 40.21 to 328 mg Pb kg-1, and 56.61 to 10,890 mg Zn kg-1. Elevated metal concentrations are assumed to be primarily responsible for the reduction in enzyme activities and earthworm health indices. We found significant negative relationships between CaCl2- and DTPA-extractable metal content (Cd, Cu, and Zn) and soil enzyme activity (P < 0.01). Therefore, it could be concluded that soil enzyme activity and metal bioaccumulation by earthworms can be used as an ecological indicator of metal availability. Furthermore, CaCl2 and DTPA extraction methods are proved as promising, precise, and inexpensive surrogate measures of Cd, Cu, Pb, and Zn bioavailability from heavy metal-contaminated soils.

Original languageEnglish
Pages (from-to)382-388
Number of pages7
JournalJournal of Hazardous Materials
Volume170
Issue number1
DOIs
Publication statusPublished - 2009 Oct 15

Fingerprint

Oligochaeta
Detonation
Heavy Metals
earthworm
Heavy metals
Soil
Enzymes
Metals
Availability
enzyme activity
heavy metal
enzyme
DTPA
Soils
Enzyme activity
metal
Pentetic Acid
extraction method
soil
bioaccumulation

Keywords

  • Bioaccumulation
  • Bioavailability
  • Ecological health
  • Eisenia fetida
  • Heavy metals
  • Soil enzyme

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Waste Management and Disposal
  • Environmental Chemistry
  • Environmental Engineering

Cite this

@article{1a8b4187ce434831ab34c11b5b348a48,
title = "Metal availability in heavy metal-contaminated open burning and open detonation soil: Assessment using soil enzymes, earthworms, and chemical extractions",
abstract = "The effects of heavy metal contamination on soil enzyme activity and earthworm health (bioaccumulation and condition) were studied in contaminated soils collected from an formerly open burning and open detonation (OBOD) site. Soil extraction methods were also evaluated using CaCl2 and DTPA solutions as surrogate measures of metal bioavailability and ecotoxicity. Total heavy metal content of the soils ranged from 0.45 to 9.68 mg Cd kg-1, 8.96 to 5103 mg Cu kg-1, 40.21 to 328 mg Pb kg-1, and 56.61 to 10,890 mg Zn kg-1. Elevated metal concentrations are assumed to be primarily responsible for the reduction in enzyme activities and earthworm health indices. We found significant negative relationships between CaCl2- and DTPA-extractable metal content (Cd, Cu, and Zn) and soil enzyme activity (P < 0.01). Therefore, it could be concluded that soil enzyme activity and metal bioaccumulation by earthworms can be used as an ecological indicator of metal availability. Furthermore, CaCl2 and DTPA extraction methods are proved as promising, precise, and inexpensive surrogate measures of Cd, Cu, Pb, and Zn bioavailability from heavy metal-contaminated soils.",
keywords = "Bioaccumulation, Bioavailability, Ecological health, Eisenia fetida, Heavy metals, Soil enzyme",
author = "Lee, {Sang Hwan} and Kim, {Eul Young} and Seunghun Hyun and Jeong-Gyu Kim",
year = "2009",
month = "10",
day = "15",
doi = "10.1016/j.jhazmat.2009.04.088",
language = "English",
volume = "170",
pages = "382--388",
journal = "Journal of Hazardous Materials",
issn = "0304-3894",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Metal availability in heavy metal-contaminated open burning and open detonation soil

T2 - Assessment using soil enzymes, earthworms, and chemical extractions

AU - Lee, Sang Hwan

AU - Kim, Eul Young

AU - Hyun, Seunghun

AU - Kim, Jeong-Gyu

PY - 2009/10/15

Y1 - 2009/10/15

N2 - The effects of heavy metal contamination on soil enzyme activity and earthworm health (bioaccumulation and condition) were studied in contaminated soils collected from an formerly open burning and open detonation (OBOD) site. Soil extraction methods were also evaluated using CaCl2 and DTPA solutions as surrogate measures of metal bioavailability and ecotoxicity. Total heavy metal content of the soils ranged from 0.45 to 9.68 mg Cd kg-1, 8.96 to 5103 mg Cu kg-1, 40.21 to 328 mg Pb kg-1, and 56.61 to 10,890 mg Zn kg-1. Elevated metal concentrations are assumed to be primarily responsible for the reduction in enzyme activities and earthworm health indices. We found significant negative relationships between CaCl2- and DTPA-extractable metal content (Cd, Cu, and Zn) and soil enzyme activity (P < 0.01). Therefore, it could be concluded that soil enzyme activity and metal bioaccumulation by earthworms can be used as an ecological indicator of metal availability. Furthermore, CaCl2 and DTPA extraction methods are proved as promising, precise, and inexpensive surrogate measures of Cd, Cu, Pb, and Zn bioavailability from heavy metal-contaminated soils.

AB - The effects of heavy metal contamination on soil enzyme activity and earthworm health (bioaccumulation and condition) were studied in contaminated soils collected from an formerly open burning and open detonation (OBOD) site. Soil extraction methods were also evaluated using CaCl2 and DTPA solutions as surrogate measures of metal bioavailability and ecotoxicity. Total heavy metal content of the soils ranged from 0.45 to 9.68 mg Cd kg-1, 8.96 to 5103 mg Cu kg-1, 40.21 to 328 mg Pb kg-1, and 56.61 to 10,890 mg Zn kg-1. Elevated metal concentrations are assumed to be primarily responsible for the reduction in enzyme activities and earthworm health indices. We found significant negative relationships between CaCl2- and DTPA-extractable metal content (Cd, Cu, and Zn) and soil enzyme activity (P < 0.01). Therefore, it could be concluded that soil enzyme activity and metal bioaccumulation by earthworms can be used as an ecological indicator of metal availability. Furthermore, CaCl2 and DTPA extraction methods are proved as promising, precise, and inexpensive surrogate measures of Cd, Cu, Pb, and Zn bioavailability from heavy metal-contaminated soils.

KW - Bioaccumulation

KW - Bioavailability

KW - Ecological health

KW - Eisenia fetida

KW - Heavy metals

KW - Soil enzyme

UR - http://www.scopus.com/inward/record.url?scp=67651087163&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67651087163&partnerID=8YFLogxK

U2 - 10.1016/j.jhazmat.2009.04.088

DO - 10.1016/j.jhazmat.2009.04.088

M3 - Article

VL - 170

SP - 382

EP - 388

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

IS - 1

ER -