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Studies on Effect of CO2 Concentration in Air and Pb Concentration in Soil on Pillbug Growth and Bio-accumulation

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2010, 19(6), pp.539-546
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

황화연 1 Lee, Sang-Don ORD ID 1

1이화여자대학교

Accredited

ABSTRACT

In nature, the overall effect of heavy metals on the biota can be influenced by a number of environmental factors like soil characteristics and air pollution by elevated CO2. Pillbugs(Isopoda, Armadillium vulgare) take up heavy metals with their food and store them mainly in the vesicles of hepatopancreas. They accumulate certain metals, occuring in relatively large numbers, are easily collected and identified. Therefore, it has been suggested that total body concentration of metals in pillbugs could be positively correlated to the levels of environmental exposure and that pillbugs could be used as biological indicators of metal pollution and global change by CO2. The aim of the study is to determine effects of heavy metal concentrations in soil and elevated CO2 on pillbugs’body accumulation of heavy metal and growth rate. In this study, pillbugs were collected at five sites (N=287) May 2006. Cu and Zn concentrations in pillbugs were higher than in soils (1.39-41.70 times) than in control. The high bioconcentration of lead in Sangam may be partly associated with reclaimed land uses. Pillbugs in low CO2 and Pb condition showed higher growth rate than in elevated CO2 and Pb condition.

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