环球

欧盟新回收法令欲从废旧电器中回收稀土 欧盟有关废旧电子产品回收的一项新指令于近日起生效。欧盟希望通过这个新指令能从废旧电子与电器产品中回收更多的稀土金属和贵金属。欧盟委员会负责环境事务的委员帕托尼克说,在稀有金属价格不断上涨、经济持续疲软的背景下,提高废旧电子及电器产品的网收率显得格外重要．这既符合环保理念,同时也是拓展新增长点的需要。     

Arsenic uptake, accumulation and phytofiltration by duckweed （Spirodela polyrhiza L.）

This study investigates arsenic (As) accumulation and tolerance of duckweed Spirodela polyrhiza L: and its potential for As phytofiltration. S. polyrhiza was able to survive in high concentration of As(V) solution: The EC50 values ( SE) based on the external As(V) were (181.66 20.12) mol/L. It accumulated (999 95) mg As/kg dw when exposed in 320 mol/L As(V) solution for one week, and was able to take up appropriately 400 mg As/kg dw in tissues without a significant biomass loss. The EC50 values (the e ective concentration of As(V) in the nutrient solution that caused a 50% inhibition on biomass production) was (866 68) mg/kg dw for the tissues, indicating that S. polyrhiza had a high capability of As accumulation and tolerance. The uptake kinetic parameters Vmax was (55.33 2.24) nmol/(g dw min) and Km was (0.144 0.011) mmol/L. Within 72 hr, S. polyrhiza decreased As concentration in the solution from 190 to 113 ng/mL with a removal rate of 41%. The study suggested that this floating aquatic plant has some potential for As phytofiltration in contaminated water bodies or paddy soils.     

可持续消费国际研讨会在北京隆重举行

2008年6月10—12日。由中华人民共和国环境保护部、财政部、联合国环境规划署、欧盟委员会联合主办的“可持续消费国际研讨会”在北京隆重举行。来自国务院相关部委、地方环保部门、中央及地方采购中心、北京奥组委、行业协会、科研院所、环境标志获证企业以及来自德国、英国、法国、瑞士、日本、韩国、菲律宾等国家环保机构、国际绿色采购网络组织等300余人参加了此次盛会。     

中欧安全生产统计项目(柳州)试点正式启动

近日,中欧安全生产统计项目(柳州)试点正式启动。中欧安全生产统计项目是应急管理部与欧盟委员会就业、社会事务和机会均等总司合作项目,旨在通过对比研究中欧生产安全事故统计和分析方法、统计信息系统,完善中方现行生产安全事故统计工作机制.