多氯联苯(PCBs)是持久性有机污染物(POPs)的一类,具持久性、半挥发性、生物蓄积性、高毒性等特点,是《关于持久性有机污染物的斯德哥尔摩公约》中规定的首批控制消除的12类污染物之一。类二恶英类多氯联苯(DL-PCBs)是指邻位上没有或只有一个氯原子取代基的PCBs,具有12种同系物,是PCBs中毒性最强的...
dlpcbs,即多层印制电路板,是工业生产中不可或缺的电子组件。在B2B售卖场景下,它特指那些具有复杂电路结构、高密度布线及优异电气性能的高端电路板。这类产品广泛应用于通信设备、医疗设备、工业控制等领域,满足行业对稳定性、可靠性和高效能的需求。 作为B2B买家,您可能正寻找能承载大电流、支持高速信号传输的电路板。
DL-PCBs对人类的危害使环境中,特别是食品和动物饲料中DL-PCBs的准确检测和定量变得至关重要。欧盟于2001年建立了一项监测计划,旨在限制并理想地消除二噁英和DL-PCBs在环境中的排放5,并在1883/2006号条例中规定了食品和饲料中二噁英、DL-PCBs和六种非二噁英样PCBs(NDL-PCB)的“高水平”(Maximum Levels, ML)。欧盟...
1.引言多氯代二苯并二噁英和多氯代二苯并呋喃(PCDD/Fs)和二恶英样多氯联苯(dl-PCBs)是一类具有高毒性和生物蓄积性的脂溶性持久性有机污染物,主要来自于不完全燃烧过程和某些化学品的生产过程以及工业PCBs产品。PCDD/Fs和dl-PCBs会产生严重的毒副作用,包括致癌以及对免...
网络类二恶英多氯联苯 网络释义 1. 类二恶英多氯联苯 类二恶英多氯联苯(DlPCBs)作为典型的环境内分泌干扰物,会干扰接触个体或其后代的内分泌功能,破坏机体的神经系统、免… www.stdlxb.cn|基于 1 个网页
Sludge- or sediment-born PCDDs, PCDFs and dl-PCBs may be removed using phytoremediation. The cultivation of cucumber and zucchini, two efficient phytoremediators of organic pollutants, on polluted substrate resulted in a mean decrease in PCDD+PCDF+dl-PCB TEQ concentrations: 64% for cucumber and...
经济的迅速增长,工业生产力的不断提高和能源消耗的快速增加,给环境带来了日益严重的负面影响.电子垃圾焚烧,城市固体废物焚烧和汽车尾气等排放产生的二恶英(PCDD/Fs)或类二恶英多氯联苯(DL-PCBs),给环境和人体健康造成了巨大的安全隐患.因此,必须开展一些环境和生物样品中的二恶英和类二恶英多氯联苯的调查与研究,从而为...
The levels of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in the Pilica River and Sulejów Reservoir were found to be 46% higher during the flood season than during
month-1. DL-PCBs contributed 49.2% of total TEQ intake. The daily intake of indicator PCB was 2.83 ng kg-1 b.w. d-1. Approximately 2/3 of dietary intake of dioxin-like compounds came from sea food products. Ten brands of infant formula products were tested and the potential dietary ...
In Japan, Ayase River is one of the most polluted rivers by polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (DL-PCBs), which are referred to as dioxins in this paper. According to the survey reports on dioxins in the ...