多环芳烃

Fat drippings create smoke that is filled with carcinogenic polycyclic aromatic hydrocarbons, or PAHs.

烧烤时滴落的脂肪会产生充满多环芳烃的烧烤烟。

Among the special nine pollutants, however, eight of them, including Hexachlorobenzene, N-Nitrosodi-N-propylamine, 3,3-dichlorobenzidine, 2,4,6-trichlorophenol, 2,3,4,5,6-pentachlorophenol, indeno (1,2,3-cd) pyrene, 4,4'-DDT and Heptachlor were in need of concern while another chemical: dibenzanthracene be of special concern. The sources of these chemicals were discussed and some control strategies were suggested based on the risk assessment.

结果表明，有18种有机污染物超过了USEPA的标准浓度要求，其中9种物质具有一定的生态风险，其中六氯苯、N-亚硝基二正丙胺、3，3'-二氯联苯胺、2，4，6-三氯酚、五氯酚、茚并(1，2，3-cd)芘、4，4'-滴滴涕、七氯在内的8种化合物具有一定的风险，而多环芳烃二苯并蒽需要引起更高警惕；在此基础上探讨了这些化合物的来源及作用，并提出了相应的防治建议。

Butyric acid,phenol,indol and polycyclic aromatic hydrocarbons are inferredin the solution phase of leachate by GC,and 53% of organic acids,18% of alcohol andphenols,and 7% of alkanes are detected in leachate by GC-MS.The colloidal structure oflandfill leachate is analyzed by determination ofξ-potential and the interfacial tension,whichprovide the basis to pretreatment by the coagulation and treatment by advanced oxidation.

首先测定了垃圾渗滤液的常规水质因子及污染物含量，并采用GC及GC-MS技术对垃圾渗滤液有机相的微观结构进行了分析，由GC谱图解析推断渗滤液的溶液相中含有丁酸或辛酸、苯酚、吲哚及多环芳烃等有机物；由GC-MS解析可知其有机物主要为有机酸，约占53％，其次醇及酚类约占18％，烷烃约占7％。

Licorice root acid in licorice root with other constitutive chemical combination after burning, may come into being many ring aromatic hydrocarbons having carcinogenesis.

甘草中的甘草酸在燃烧后，与其他成分化合，可生成有致癌作用的多环芳烃。

The result indicated BaP and the subsequent oxidative stress disturbed the expression of mitochondrion-encoded genes, and this was potential biomarker for oxidative stress following xenobiotic exposure.

研究表明，土壤中苯并［a］芘污染改变了蚯蚓线粒体基因组的表达水平，线粒体基因组表达异常是多环芳烃污染胁迫的重要分子生物标记物。

The majority of PAH_s with serious carcinogen is the heavy one that are mainly sorbed on fine inhalable particles with a high concentration on airborne particles of sub-micron diameters, which can be deposited in the respiratory tract, hence, increasing the potential health effects.

大多数强致癌性的PAH_s为能吸附在微小颗粒物上(高浓度的PAH_s集中在亚微直径颗粒物上)的大分子多环芳烃，并通过人的呼吸道进入人体，在呼吸气管上沉积，危害人体健康。

For PAHs are liable to be sorbed by soil solids, the plant and microbial availability of PAHs in soils is a major limiting factor of phytore-mediation efficiencies.

植物修复及其强化技术在土壤多环芳烃等有机污染修复中有较大的应用潜力。

The digestion and composting could obviously reduce PAHs contents,and change the distribution pattern of PAHs in sludges.

其中消化、堆肥处理可明显降低污泥中多环芳烃的含量，并改变污泥中PAHs的分布模式。

Samples were collected in lab for civil coal combustion and in field for coke plant and petroleum asphalt, 13 polycyclic aromatic hydrocarbons were determined by GC/MS.

利用模拟实验采集了民用燃煤污染源样品，在现场采集了焦化厂和石油沥青两类污染源样品，用GC MS联用技术测定了样品中 13种多环芳烃。

This is a second, but indirect, way in which PAHs can cause cancer.

& &这是第二次，但间接的方式多环芳烃可以导致癌症。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。