Suppr超能文献

重建重金属沉积的时间趋势:评估标本馆苔藓样本的价值。

Reconstructing temporal trends in heavy metal deposition: assessing the value of herbarium moss samples.

作者信息

Shotbolt L, Büker P, Ashmore M R

机构信息

Geography Department, Queen Mary, University of London, London, E1 4NS, UK.

出版信息

Environ Pollut. 2007 May;147(1):120-30. doi: 10.1016/j.envpol.2006.08.031. Epub 2006 Oct 12.

Abstract

The use of the herbarium moss archive for investigating past atmospheric deposition of Ni, Cu, Zn, As, Cd and Pb was evaluated. Moss samples from five UK regions collected over 150 years were analysed for 26 elements using ICP-MS. Principal components analysis identified soil as a significant source of Ni and As and atmospheric deposition as the main source of Pb and Cu. Sources of Zn and Cd concentrations were identified to be at least partly atmospheric, but require further investigation. Temporal and spatial trends in metal concentrations in herbarium mosses showed that the highest Pb and Cu levels are found in Northern England in the late 19th century. Metal concentrations in herbarium moss samples were consistently higher than those in mosses collected from the field in 2000. Herbarium moss samples are concluded to be a useful resource to contribute to reconstructing trends in Pb and Cu deposition, but not, without further analysis, for Cd, Zn, As and Ni.

摘要

对利用植物标本馆的苔藓存档来研究过去大气中镍、铜、锌、砷、镉和铅的沉积情况进行了评估。对英国五个地区在150多年间采集的苔藓样本使用电感耦合等离子体质谱法分析了26种元素。主成分分析确定土壤是镍和砷的重要来源,大气沉积是铅和铜的主要来源。锌和镉浓度的来源被确定至少部分来自大气,但需要进一步研究。植物标本馆苔藓中金属浓度的时空趋势表明,19世纪后期在英格兰北部发现了最高的铅和铜含量。植物标本馆苔藓样本中的金属浓度始终高于2000年从野外采集的苔藓。得出结论,植物标本馆苔藓样本是有助于重建铅和铜沉积趋势的有用资源,但对于镉、锌、砷和镍,未经进一步分析则不适用。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验