Humic Substances as Natural Nanoparticles Ubiquitous in the Environment

摘要：

Humic substances (HS) are recognized to be the most widespread and ubiquitous components of natural nonliving organic matter (NOM) in the global environment. The estimated level of soil organic carbon (SOC) on the earth surface occurring as HS is 30×1014 Kg. In particular, approximately 60%-70% of the total SOC has been estimated to occur in HS. These substances consist of a physically and chemially heterogeneous mixture of relatively high-moleular weight, yellow to black organic compounds of mixed aliphatic and aromatic nature, formed by secondary synthesis reactions (humification) of products of the microbial and chemical decay and transformations of biomolecules released from organisms into the surrounding environment both during life and after death.

作者: Nicola Senesi

作者单位: Department of Agroforestal and Environmental Biology and Chemistry,University of Bari,Via Amendola,165/A,70126-Bari,Italy

会议类型: 国际会议

会议名称: The International Symposium of Molecular Environmental Soil Science at the Interfaces in the Earths Critical Zone(地球关键区界面反应：分子水平环境土壤科学国际会议)

会议地点: 杭州

会议语种:英文

页码: 249-250

在线出版日期: 2009-10-10（万方平台首次上网日期，不代表论文的发表时间）