Devon & Devon

DEVON & DEVON始于1989年,品牌名称诞生于一个重新打造卫生间的想法,源自维多利亚时代。创始者是一群志同道合、卫浴设计经验丰富的艺术家,受到时代特征和氛围的激发,优雅与品位的设计理念由此诞生。自从Devon & Devon成立后,她秉承     

Devon & Devon

DEVON & DEVON始于1989年,品牌名称诞生于一个重新打造卫生间的想法,源自维多利亚时代。创始者是一群志同道合、卫浴设计经验丰富的艺术家,受到时代特征和氛围的激发,优雅与品位的设计理念由此诞生。自从DeVon&Devon成立后,她秉承对时尚、舒适感的特殊追求,在业务和设计方面不断受到认可,迅速巩固起在行业内的地位。     

Devon & Devon

DEVON&DEVON始于1989年,品牌名称诞生于一个重新打造卫生间的想法,源自维多利亚时代。创始者是一群志同道合、卫浴设计经验丰富的艺术家,受到时代特征和氛围的激发,优雅与品位的设计理念由此诞生。自从Devon&Devon成立后,她秉承对时尚、舒适感的特殊追求,在业务和设计方面不断受到认可,迅速巩固起在行业内的地位。     

Deposition of brominated flame retardants to the Devon Ice Cap, Nunavut, Canada

Brominated flame retardants (BFRs) can be transported to Arctic regions via atmospheric long-range transport, however, relatively little is known about their deposition to terrestrial environments. Snow cores from the Devon Ice Cap in Nunavut, Canada served to determine the recent depositional trends of BFRs. Snow pits were dug in 2005, 2006, and 2008. Dating using annual snow accumulation data, ion chemistry, and density measurements established that the pits covered the period from approximately 1993 to spring 2008. Samples were extracted under clean room conditions, and analyzed using GC-negative ion MS for 26 tri- to decabromodiphenyl ethers (BDEs), as well as other BFRs, nonbrominated flame retardants, and industrial chemicals. Decabromodiphenyl ether (BDE-209) was the major congener present in all samples followed by nona-BDEs (BDE-207, BDE-206, and BDE-208), both accounting for 89% and 7% of total BDE, respectively. BDE-209 concentrations were in most cases significantly correlated (P < 0.05) to tri- to nona-BDE homologues, and the strength of the correlations increased with increasing degree of bromination. Prior to or after deposition BDE-209 may be subject to debromination to lighter congeners. Deposition fluxes of BDE-209 show no clear temporal trend and range between 90 and 2000 pg·cm(-2)·year(-1). Back trajectory origin in densely populated areas of northeastern North America is significantly correlated (P < 0.005) with the BDE-209 deposition flux. Several other high production volume and/or alternative BFRs such as hexabromocyclododecane (HBCD), 1,2-bis(2,4,6-dibromophenoxy)ethane (BTBPE), pentabromo ethyl benzene (PBEBz), and pentabromobenzene (PBBz), as well as the industrial chemical 1,3,5-tribromobenzene (135-TBBz) were found consistently in the snow pits.