The Japan Society for Environmental Chemistry (formerly known as the Environmental Chemistry Research Association) became the Japan Environmental Chemistry Society of Japan on July 30, 2010. The aim of this conference is to exchange information on dissemination of the relationship between the environment and chemical substances, to disseminate it, to advance academia and technology. The International Session calls for papers. It also welcomes original research papers on analytical and monitoring methods of contaminants, distributions and behaviors of the contaminants in atmospheric, aquatic, soil environments, accumulation and toxicity of the chemicals in biota, treatments of the contaminants and so on. The target contaminants cover inorganic and organic including heavy metals, persistent organic pollutants, endocrine disrupting chemicals, hydrocarbons, PPCPs and so on.