Highlights A fully coupled model was proposed for the migration of VOCs in unsaturated landfill liners. Finite deformation of soil was considered in the new model. The transport of gas phase VOCs was found to dominate the migration progress. The temperature gradient can accelerate the breakthrough of VOCs in an unsaturated liner. The mechanical consolidation slowed down the motion of the VOCs.Highlights (for review)

To gain a comprehensive understanding of plant response to Cd, physiological and proteomic changes in wheat (Triticum aestivum L.) leaves exposed to a range of Cd concentrations (10, 100 and 200 μM) were investigated. Leaf elongation was decreased, whereas the H 2 O 2 and malondialdehyde content increased significantly at higher Cd concentrations. Changes in protein profiles were analyzed by two-dimensional electrophoresis. Twenty-one proteins which showed 1.5-fold change in protein abundance in response to Cd were identified. These proteins can be functionally grouped into three groups: 1) oxidative stress response, 2) photosynthesis and sugar metabolism and 3) protein metabolism and others. These results provide a new insight into our understanding of the molecular basis of heavy metal response in plants.Additional key words: antioxidative enzymes, heavy metal, oxidative stress, Triticum aestivum.