搜索结果: 1-10 共查到“环境科学技术基础学科 PAHs”相关记录10条 . 查询时间(0.015 秒)
应用气相色谱-质谱联用仪（GC-MS）测定了开封市相国寺、铁塔公园、龙亭公园、清明上河园等4个公园的53个地表灰尘样品中的16种优控多环芳烃（PAHs）含量，并分析了PAHs的来源、组成、污染水平和健康风险.结果表明：样品∑PAHs含量在332.20~7535.10 μg·kg-1之间，平均值为1320.10 μg·kg-1，其中，单体PAHs以菲、蒽、荧蒽、芘、苯并（a）蒽、苯并（b）荧蒽和苯并...
2014年6月12日~7月22日，在武汉市洪山区进行PM2.5采样，分析了夏季PM2.5及其水溶性离子的浓度，并利用气相色谱/质谱（GC/MS）对PM2.5中多环芳烃（PAHs）浓度进行测定，探讨其污染来源及形成机制. 结果表明，PM2.5质量浓度为36.41~220.02 μg·m-3，平均值为97.38 μg·m-3，超标率为59.26%，气象因素中风速对其影响较大，随着风速的增加，浓度呈降低...
2012年9月在天津市城市交通密集区（八里台、海光寺公交车站）采集可吸入颗粒物（PM10）样品，并对采集的样品进行有机分析.在此基础上， 针对公交车站候车的成年人群，应用美国EPA开发的电子数据库IRIS（Integrated Risk Information System），对可吸入颗粒物中的多环芳烃（PAHs）成分进行了健康风险评估.暴露采样的分析结果表明，两车站的PM10暴露浓度均值分别为（...
采用GC/MS方法分析了滇池沉积柱中16种美国EPA优控的多环芳烃(PAHs)的垂直分布状况,并对其来源变化及生态风险进行了分析和评估.研究表明:滇池沉积柱中PAHs的含量范围为558~6418 ng·g-1,并在20世纪90年代初达到峰值,这明显不同于发达国家的同类研究,也与国内沿海地区和偏远湖泊的相关研究有所不同.滇池沉积物中的PAHs主要来自当地的家庭燃煤、木材和生物秸秆等的低温燃烧过程,但...
以上海、温州市典型交通干道地表径流为研究对象,分析了样品中16种溶解态和颗粒态PAHs浓度,了解了城市交通干道降雨径流中PAHs污染特征及其动态变化过程.结果表明,径流中∑PAHs(包括溶解相、颗粒相)浓度范围为919.8~16711.6ng·L-1,溶解相中PAHs浓度要远低于颗粒相(分别为4.9~1558.0ng·L-1,635.4~16624.0ng·L-1).通过对3场降雨事件中PAHs浓...
Particle-bound PAHs and Particle-extract-induced Cytotoxicity of Emission from a Diesel-generator Fuelled with Soy-biodiesel
Polycyclic aromatic hydrocarbons Biodiesel Particle size distribution Cytotoxicity
2016/3/28
This study investigates the size distribution of nano/ultrafine particle-bound PAHs (polycyclic aromatic hydrocarbons)
and the PAH-associated carcinogenic potency/cytotoxicity of the exhaust from a g...
Workplace Environment and Personal Exposure of PM and PAHs to Workers in Natural Rubber Sheet Factories Contaminated by Wood Burning Smoke
Smoke Polycyclic aromatic hydrocarbon Ribbed smoked sheet Exposure Fine particles
2016/3/29
The workplace environment in factories producing ribbed smoked sheet rubber (RSS), the interiors which are heavily
contaminated by wood burning smoke, was evaluated with a focus on the concentration ...
Measurement of Particulate n-alkanes and PAHs Inside and Outside a Temple in Xiamen, China
Incense burning Particulate matter n-alkanes Polycyclic aromatic hydrocarbons Health risk
2016/3/29
Total suspended particles samples inside and outside the South Pu-Tuo Temple (SPT), a traditional
Buddhist temple in Xiamen, China were collected and further analyzed for n-alkanes and polycyclic
ar...
Application of Soft X-rays in the Decomposition of Polycyclic Aromatic Hydrocarbons (PAHs) in Smoke Particles from Biomass Fuel Burning
PAHs Decomposition Biomass burning Irradiating duration Particle size Rubberwood.
2016/3/30
Soft X-rays with a wave length of 1.3 × 10-4–4.1 × 10-4 m were tested for use in
studying the decomposition of polycyclic aromatic hydrocarbons (PAHs), widespread
hazardous and carcinogeni...
PAHs and Aerosol Carbons in the Exhaust of a Gasoline Powered Engine
PAHs and Aerosol Carbons Gasoline Powered Engine
2016/3/31
PAHs and Aerosol Carbons in the Exhaust of a Gasoline Powered Engine。