环境持久性有机自由基(Environmental Persistent Free Radicals,EPFRs)是相对于传统关注的短寿命自由基而提出的.与传统认识的自由基相比,EPFRs的半衰期较长,它可在环境中存在数十分钟到几十天.EPFRs被认为是一类新型的环境风险物质,可诱发生物系统的氧化应激反应,引起细胞和机体损伤,引发肺部和心血管疾病,是癌症诱因之一.然而,目前国内外关于EPFRs的产生
We present Mie lidars observations in north China and obtained the formation processes of a four-day pollution episode in the late winter in 2017.The evolution of particle extinction coefficients and
The infrared solar light(wavelength >740 nm) consisted almost half of the total solar energy.This part of energy has yet been efficiently utilized by many of the conventional light-responsive material
Photocatalysis has been regarded as one of the most promising alternative technology for environmental remediation,due to its potential of using sunlight as the energy source.In the past few decades,c
纳米颗粒为粒径介于1-100纳米之间人工合成颗粒物质的总称。随着纳米材料的大规模使用,越来越多的人工纳米颗粒进入水环境并发生汇集。为了科学全面地评估人工纳米颗粒的生态毒理效应,我们近年来以金属人工纳米颗粒(Metallic Engineered Nanoparticles,M-ENPs)为对象,研究了 M-ENPs 在不同营养级水生生物体内的累积过程与毒性效应(直接效应),探讨了 M-ENPs 对
The widespread human exposure and associated adverse health effects led to regulations on the usage of bisphenol A(BPA).Several bisphenol analogues(BPs)have been introduced as BPA alternatives.However
纳米零价铁(nZVI)作为一种有效但费用较高的氯代烃污染地下水修复技术,将最有可能被用于污染源的修复。已报道的nZVI的改性方法主要有两种,一是在nZVI表面负载第二种金属形成双金属(Fe-Me),二是硫化nZVI形成S-nZVI,遗憾的是先前的报道主要集中在污染羽条件下这个两种改性方式对nZVI降解氯代烃活性的提高。鉴于此,我们系统地对比了 Fe-Me(Me 包括 Pd、Ni、Cu、Ag)、S-