The influence of aging on the comparative terrestrial ecotoxicity potential of copper and zinc in soils

Aiju Liu, Qiang Liao, Mingzhu Li, Menghong Li, Zilin Meng, Qian Zhang, Huansheng Cao

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Metal exposure to terrestrial organism is influenced by the reactivity of the solid-phase metal pool. Aging is one of the important factors that control the reactivity of the solid-phase metal pool in soil. In this study, the selected 13 soils were collected from different locations of China, representing different soil types. The reactivity variation of spiked Cu and Zn with aging was assessed in these 13 soils, and their comparative toxicity potentials (CTPs) were also calculated. The median reactive fractions (freactive) of Cu and Zn with 95% confidence intervals were 1.6 × 10−2 (3.5 × 10−6 to 2.2 × 10−1) and 0.10 (9.1 × 10−4 to 0.44) kgreactive/kgtotal, and the median CTPs for Cu and Zn were 2.09 (8.1 × 10−4 to 2.2 × 104) and 0.85 (8.5 × 10−4 to 7.2 × 102) m3/kg day, respectively. The statistical analysis indicated that aging variability in the CTP of Cu and Zn was mainly associated with the variability in soil organic carbon and pH. These results stress the importance of dealing with aging in the calculation of CTPs for terrestrial ecotoxicity of metals.

Original languageEnglish (US)
Pages (from-to)28094-28101
Number of pages8
JournalEnvironmental Science and Pollution Research
Volume25
Issue number28
DOIs
StatePublished - Oct 1 2018
Externally publishedYes

Fingerprint

Zinc
Copper
Soil
Aging of materials
zinc
Toxicity
copper
toxicity
Soils
Metals
metal
soil
confidence interval
soil type
Organic carbon
statistical analysis
organic carbon
China
Statistical methods
Carbon

Keywords

  • Aging
  • Comparative toxicity potential
  • Heavy metals
  • Reactivity

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

The influence of aging on the comparative terrestrial ecotoxicity potential of copper and zinc in soils. / Liu, Aiju; Liao, Qiang; Li, Mingzhu; Li, Menghong; Meng, Zilin; Zhang, Qian; Cao, Huansheng.

In: Environmental Science and Pollution Research, Vol. 25, No. 28, 01.10.2018, p. 28094-28101.

Research output: Contribution to journalArticle

Liu, Aiju ; Liao, Qiang ; Li, Mingzhu ; Li, Menghong ; Meng, Zilin ; Zhang, Qian ; Cao, Huansheng. / The influence of aging on the comparative terrestrial ecotoxicity potential of copper and zinc in soils. In: Environmental Science and Pollution Research. 2018 ; Vol. 25, No. 28. pp. 28094-28101.
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