多环芳烃

基本解释 (translations)

PAHs

与多环芳烃相关的网络例句 [注：此内容来源于网络，仅供参考]

Only 2-4 ring PAHs were detected in gas phase, and phenanthrene was the most abundant with an average of 55.1% in total PAHs.

结果显示，气相中主要是2-4环的多环芳烃，其中菲为主要的化合物，平均占到总多环芳烃的55.1%。

The influence of environmental variables on distribution of PAHs(1) The concentrations of PAHs were higher in warm temperate zone and subtropical zonethan in low temperature zone;(2) The concentration in plain, hilly land and Ya\'an mountainousregion were higher than in other places;(3) The concentration in paddy fields, dry land andforests were higher than in artificial land and grass;(4) There was positive correlation betweenthe concentration of PAHs and TOC. The correlation was more obvious for 4-rings PAHs thanfor 5-, 6-rings PAHs;(5) The concentration of PAHs in acid soils was higher than in alkali andneutral soils;(6) The concentrations in conifer and spinney forest were higher than inbroad-leaved forest.Part two: The temporal and spatial distribution characteristics of POPs at Basin-MountainTransect.

环境因素对多环芳烃分布的影响(1)温带和亚热带地区土壤多环芳烃含量高于低温地区土壤中多环芳烃含量；(2)在平原、匠陵和雅安市附近的山区多环芳烃含量高于其他地区含量：(3)水田、旱地和林地多环芳烃含量高于建筑用地和草地中含量；(4)多环芳烃含量和土壤总有机碳含量成正比，四环多环芳烃与总有机碳的相关性高于其他多环芳烃的相关性；(5)酸性土壤中多环芳烃含量高于碱性和中性土壤中含量；(6)针叶林和灌木林多环芳烃含量高于阔叶林中的含量。

Priority PAHs recommended by USEPA were all detected, and the mass concentrations of individual PAHs was between 1.49 and 87.43ngg^(-1), The PAHs with low molecular weight, such as Nap, Flu, Ace were observed in relatively low mass concentrations. The PAHs with high molecular weight, such as Chrysene, Indeno [1, 2, 3-cd] pyrene, Benzo perylene were relatively abundant and the mass congcentration of BghiP was the highest. The total mass congcentration of 16 PAHs exceeded standard of Holand from 10 to 40 times, and in middle pollution level comparatively with other districts.

美国环保总署推荐优先控制的16种多环芳烃均被检出，多环芳烃单体的质量浓度在1.49~87.43ngg^(-1)扩之间；其中萘、药、苊等低分子量芳烃的质量浓度相对较低；窟、茚并[1， 2， 3-cd]苝、苯并苝等高分子量芳烃的质量浓度相对较高，苯并苝的质量浓度最高。16种多环芳烃的质量总浓度超过荷兰政府规定无污染土壤PAHs值的10~40倍；与国内外其他地区相比较，多环芳烃污染处于中等水平。

Data analysis shows that the total amount of PAHs in the sediments of north Taihu Lake is obviously higher than that at the central and south Taihu Lake, and that there is a little difference between the contents of PAHs of high molecular weight and low molecular weight, while the ratio of PAHs varies in different sections of the lake. Through the statistical analysis of the ratio of fluoranthene to pyrene, it is concluded that PAHs mainly come from oil burning with part of them from coal and wood burning.

分析结果表明，太湖北部的多环芳烃总量明显高于中部和南部，低分子量多环芳烃与高分子量多环芳烃的含量差别不大，但在地域上比例有所变化；根据荧蒽/芘的比值统计，多环芳烃主要来源于石油燃烧，部分为煤和木材的燃烧形成。

The PAHs in sediment core were mainly composed of phenanthrene and fluorene. The concentrations of phenanthrene and fluorene in sediment core were 236.1-417.9 ng/g and 91-130.8 ng/g,respectively. Both of them accounted for 47.2%-58.1% of the ∑PAH16 in sediments.

沉积物中多环芳烃的组成以3环的菲和芴为主，它们的含量分别为236.1～417.9 ng/g和91～130.8 ng/g，二者共占沉积物中多环芳烃总量（∑PAH16）的47.2%～58.1%。

However, research on polycyclic aromatic hydrocarbons in the environmental medium within the industrial area has not been reported yet.

目前国内外对环境中的多环芳烃已开展了较多的研究，但有关工业区环境介质中的多环芳烃研究尚未见报道。

The experimental results show that the distributions of content and toxicity equivalent quantity of PAHs in raw coal are similar to coal gasification but this compositions and contents are different. The rise of coal rank leads to the decrease of the content and TEQ of PAHs in raw coal and the increase of TEQ during coal gasification, while the content of PAHs emission from coal gasification increases first and then decreases with the increase of coal rank. The total PAHs contents generated in coal gasification of some sorts of coals are higher than in raw coal. The types of PAHs formed in coal gasification include undecomposed PAHs in raw coal, pyrosysthensis PAHs, and radical polymerization PAHs at high temperature.

试验结果表明：煤气化前后多环芳烃质量分数和毒性当量质量分数的分布特徵相似，但多环芳烃的组成和质量分数不同；煤化程度增加，原煤多环芳烃质量分数和毒性当量质量分数减小，煤气化多环芳烃质量分数先增后减，毒性当量质量分数与煤化程度呈线性关系；部分煤种气化多环芳烃的质量分数高於原煤多环芳烃质量分数，且煤气化多环芳烃的种类分为原煤未分解的多环芳烃、热解合成的多环芳烃、自由基高温缩合生成的多环芳烃。

Fat drippings create smoke that is filled with carcinogenic polycyclic aromatic hydrocarbons, or PAHs. When the smoke envelopes the food, it transfers the PAHs onto the surface of the meat. And when meat, chicken and fish are grilled at high temperatures for long periods of time, compounds inside the food react and create heterocyclic amines, or HCAs. HCAs are worrisome because in lab studies they've been shown to trigger breast, colon and prostate tumors in rats and mice.

滴下来的油脂产生的烟雾充满了致癌的多环芳烃，简称PAHs，当烟雾环绕在食物周围的时候，这些多环芳烃也附着在了食物的表面，当猪肉，鸡肉或是鱼肉在长时间的高温烧烤时，这些食物本身所含有的成分产生了化学变化生成杂环胺类物质，简称HCAs，这类物质相当的麻烦，因为实验室研究发现它们会引起大鼠和小鼠乳腺，结肠以及前列腺部位的肿瘤。

There are more than 100 different PAHs.Most PAHs do occur alone in the environment.

绝大多数的多环芳烃在环境中不是单独存在，它们往往是两个或更多的多环芳烃的混合物。

Rather they are found as mixtures of two or more PAHs.

绝大多数的多环芳烃在环境中不是单独存在，它们往往是两个或更多的多环芳烃的混合物。

与多环芳烃相关的网络解释 [注：此内容来源于网络，仅供参考]

polycyclic aromatic hydrocarbon：多环芳烃

接著Nuckolls等人使单分子厚的多环芳烃(polycyclic aromatic hydrocarbon),以自组装(self-assembly)方式连接於源极和汲极之间,由於因为烃分子的电导性随著局部化学环境不同而变,因此该元件可以用来充当侦测器.

PAH：多环芳烃

多环芳烃的性质及其危害 收藏此文 全部作者: 申松梅 曹先仲 宋艳辉 连小英 第一作者单位: 长安大学环境科学与工程学院 论文摘要: 多环芳烃(pah)是广泛分布于环境中的一类重要的有机污染物.

PAH：环芳烃

PAH 多环芳烃(PAH)多环芳烃主(PAHs)要的十八种化合物为:萘、苊烯、苊、芴、菲、蒽、荧蒽、芘、苯并(a)蒽、屈、苯并(b)荧蒽、苯并(k)荧蒽、苯并(a)芘、茚并(1,2,3-cd)芘、二苯并(a,h)蒽和苯并(g,h,i)苝、1-甲基奈、2-甲基奈

phenanthrene：菲

文章摘要:采用3种典型非离子表面活性剂(Tween80、Tween20和Triton X-100),对4种典型多环芳烃萘(naphthalene)、菲(phenanthrene)、芴(fluorene)和芘(pyrene)进行了溶解特性研究.结果表明,非离子表面活性剂对多环芳烃具有较好的增溶效果,

Flavobacterium：黄杆菌属

近年来人们对微生物降解多环芳烃的作用机理进行了广泛的研究,研究结果表明,对可降解多环芳烃的微生物有红球菌属( Rhodococ2cus) 假单胞菌属( Pseudomonas ) 分枝杆菌( My2cobacterium) 芽孢杆菌属( Bacill us ) 黄杆菌属( Flavobacterium) 气单胞菌属( A

polycyclic hydrocarbon：多环芳烃

Polychromatic erythrocyte 嗜多染色红细胞 | Polycyclic hydrocarbon 多环芳烃 | Polymer 聚合物

aromatic ketones：芳基烷基酮

芳香梭酸:Aromatic carboxylic acid | 芳基烷基酮:aromatic ketones | 多环芳烃:polycylic aromatic hydrocarbons

Monomers：单体

多环芳烃特有的疏水性和稠环平面结构决定了其在极性介质中易于形成激基缔合物(E xcimers),从而在表现出单体(Monomers)荧光发射特征的同时,也表现出激基缔合物荧光特征{'」.二聚体荧光发射强度与单体荧光发射强度之比表明了体系中多环芳烃分子相互靠近的程度.不难理解,

PAHs：多环芳烃

希金斯在描述其研究结果时介绍:"利用美国宇航局斯皮策太空望远镜(SpitzerSpaceTelescope)最近的观测结果,天文学家在我们所居住的银河系内,到处都发现了一种复杂有机物'多环芳烃'(PAHs)存在的证据.

polycyclic aromatic hydrocarbons PAHs：多环芳烃

多环芳烃(Polycyclic Aromatic Hydrocarbons PAHs)是煤,石油,木材,烟草,有机高分子化合物等有机物不完全燃烧时产生的挥发性碳氢化合物,是重要的环境和食品污染物.迄今已发现有200多种PAHs,其中有相当部分具有致癌性,如苯并[α]芘,苯并[α]蒽等.PAHs广泛分布于环境中,