česky | english
 

Environmental Pollution 173

Overview of articles on POPs in a new issue of the Environmental Pollution journal.

Nanoscale zerovalent iron alters soil bacterial community structure and inhibits chloroaromatic biodegradation potential in Aroclor 1242-contaminated soil

Pages 38-46
Emma L. Tilston, Chris D. Collins, Geoffrey R. Mitchell, Jessica Princivalle, Liz J. Shaw

  • Impact of nano-sized zerovalent iron on microbes was investigated in soil microcosms.
  • Zerovalent iron had short-lived effects on redox potential and Aroclor dechlorination.
  • Microbial populations also showed short-lived perturbations in their size.
  • The activity of chloroaromatic degrading microbes did not recover within 28 days.
  • Zerovalent iron application inhibits ensuing PCB bioremediative microbial functions.

Trophic transfer of pyrene metabolites between aquatic invertebrates

Pages 61-67
V. Carrasco Navarro, M.T. Leppänen, J.V.K. Kukkonen, S. Godoy Olmos

  • The trophic transfer of pyrene metabolites between invertebrates was evaluated.
  • Biotransformation of pyrene by L. variegatus and C. ripariusis different.
  • Metabolites produced by L. variegatus and C. riparius are transferred to G. setosus.
  • Specifically, two metabolites produced by C. riparius were transferred.

Pollution level, inhalation exposure and lung cancer risk of ambient atmospheric polycyclic aromatic hydrocarbons (PAHs) in Taiyuan, China

Pages 150-156
Zhonghuan Xia, Xiaoli Duan, Shu Tao, Weixun Qiu, Di Liu, Yilong Wang, Siye Wei, Bin Wang, Qiujing Jiang, Bin Lu, Yunxue Song, Xinxin Hu

  • The median values of ILCR were higher in winter than in other seasons.
  • The median values of ILCR were higher in urban than in rural area.
  • In the same season and area, the ILCR of adults was larger than other age groups.
  • In the same season and area, the ILCR of females was a little higher than males.
  • Exposure level and thecancerslope factor influenced the ILCR greatly.

Enhanced degradation of 14C-HCB in two tropical clay soils using multiple anaerobic–aerobic cycles

Pages 168-175
Fredrick Orori Kengara, Ulrike Doerfler, Gerhard Welzl, Bernhard Ruth, Jean Charles Munch, Reiner Schroll

  • Two anaerobic–aerobic cycles enhanced the dissipation of HCB in two tropical soils – a paddy and non-paddy soil.
  • The paddy soil was more effective in degrading HCB.
  • The non-paddy soil adapted and degraded HCB in the second anaerobic–aerobic cycle.
  • An additional carbon source enhanced degradation and mineralisation of HCB in both soils.

Effects of plant species identity, diversity and soil fertility on biodegradation of phenanthrene in soil

Pages 231-237
Ayodeji O. Oyelami, Uchechukwu V. Okere, Kate H. Orwin, Gerlinde B. De Deyn, Kevin C. Jones, Kirk T. Semple

  • Two grassland soils of contrasting fertility showing differences in total nitrogen content (%N) were used in this study.
  • The effects of individual plant species and plant diversity on mineralisation of14C-phenanthrene in soil were investigated.
  • Soil fertility was the major influence on mineralisation of14C-phenanthrene, and abundance of microbial community.
  • The presence of a specific plant plays a role in the extent of mineralisation of phenanthrene in soil.

Terrestrial mosses as biomonitors of atmospheric POPs pollution: A review

Pages 245-254
H. Harmens, L. Foan, V. Simon, G. Mills

  • Terrestrial mosses are suitable organisms to monitor deposition of POPs.
  • They provide a good indication of spatial patterns and temporal trends.
  • Mosses have been used as biomonitors of PAHs, PCBs, PBDEs dioxins and furans.
  • Few studies have assessed the relationship between concentrations in air and mosses.

13.12.2012


Back