Results 21 to 30 of about 207,386 (342)

Biodegradation of Mixed PAHs by PAH-Degrading Endophytic Bacteria [PDF]

International Journal of Environmental Research and Public Health, 2016
Endophytic bacteria can promote plant growth, induce plant defence mechanisms, and increase plant resistance to organic contaminants. The aims of the present study were to isolate highly PAH-degrading endophytic bacteria from plants growing at PAH-contaminated sites and to evaluate the capabilities of these bacteria to degrade polycyclic aromatic ...
Zhu, Xuezhu, Ni, Xue, Waigi, Michael Gatheru, Liu, Juan, Sun, Kai, Gao, Yanzheng   +5 more
openaire   +2 more sources

Spatial distribution and sources of PAHs in topsoil in the Beiyun River Basin (Beijing section)

Shuiwen dizhi gongcheng dizhi, 2023
Organic pollution of polycyclic aromatic hydrocarbons (PAHs) in topsoil has threatened human health and ecological environment. In order to understand the distribution and pollution characteristics of PAHs in topsoil in the Beiyun River Basin in Beijing,
Dan HUANG, Yong HUANG, Yonglong AN, Hui FENG, Zhao SUN, Huan LI   +5 more
doaj   +1 more source

Polycyclic aromatic hydrocarbon processing in a hot gas [PDF]

, 2009
Context: PAHs are thought to be a ubiquitous and important dust component of the interstellar medium. However, the effects of their immersion in a hot (post-shock) gas have never before been fully investigated. Aims: We study the effects of energetic ion
A. G. G. M. Tielens, A. P. Jones, Chantler, Chantler, Chevalier, Czyzewski, de Souza, Draine, Draine, Dwek, Dwek, Désert, E. R. Micelotta, Engelbracht, Ferrell, Galliano, Hadjar, Hartquist, Heckman, Hovington, Hwang, Jochims, Jones, Jones, Joy, Joy, Keller, Le Page, Ling, Marcolini, Micelotta, Morse, Omont, Peeters, Povich, Puska, Puska, Ranalli, Reach, Schlathölter, Smith, Strickland, Suchkov, Tappe, Tielens, Tomita, Townsley, Van Kerckhoven, Voit   +48 more
core   +1 more source

Using deuterated PAH amendments to validate chemical extraction methods to predict PAH bioavailability in soils [PDF]

, 2011
Validating chemical methods to predict bioavailable fractions of polycyclic aromatic hydrocarbons (PAHs) by comparison with accumulation bioassays is problematic.
Collins, Christopher David, Gomez-Eyles, J L, Hodson, Mark Edward   +2 more
core   +1 more source

Current State of Knowledge in Microbial Degradation of Polycyclic Aromatic Hydrocarbons (PAHs): A Review

Frontiers in Microbiology, 2016
Polycyclic aromatic hydrocarbons (PAHs) include a group of organic priority pollutants of critical environmental and public health concern due to their toxic, genotoxic, mutagenic and/or carcinogenic properties and their ubiquitous occurrence as well as ...
D. Ghosal, Shreya Ghosh, T. Dutta, Y. Ahn   +3 more
semanticscholar   +1 more source

Pollution Distribution Characteristics and Ecological Risk Assessment of Heavy Metals and Polycyclic Aromatic Hydrocarbons in the River Sediments in Anning, Yunnan Province

Yankuang ceshi, 2021
BACKGROUND Anning is an important industrial and mining city in the upper reaches of the Yangtze River Economic Belt. It is a fulcrum for economic development and ecological civilization construction in the Central Yunnan New Area.
FAN Chen-zi, LIU Yong-bing, ZHAO Wen-bo, LIU Cheng-hai, YUAN Ji-hai, GUO Wei, HAO Nai-xuan   +6 more
doaj   +1 more source

Need of Improvement in Timing of Prophylactic Antibiotic in Elective Surgery

Asian Journal of Medical Sciences, 2012
Objective: Infections in surgery are major concern of morbidity, mortality, and costs. Timely antibiotic prophylaxis (AP) before incision ensures optimum concentration of AP in blood and tissues to prevent surgical site infections (SSIs). However, proper
J N Shah
doaj   +1 more source

The Infrared Spectra of Very Large Irregular Polycyclic Aromatic Hydrocarbons (PAHs): Observational Probes of Astronomical PAH Geometry, Size and Charge

, 2009
The mid-IR spectra of six large, irregular PAHs with formulae (C84H24 - C120H36) have been computed using Density Functional Theory (DFT). Trends in the dominant band positions and intensities are compared to those of large, compact PAHs as a function of
Bauschlicher, Bauschlicher, Brandl, Bregman, Charles W. Bauschlicher, Cook, Cox, de Graauw, Draine, Els Peeters, Frisch, Galliano, Helou, Herzberg, Hudgins, Hudgins, Joblin, Kessler, Li, Louis J. Allamandola, Onaka, Peeters, Sellgren, Smith, Uchida, van Diedenhoven   +25 more
core   +1 more source

Role of Coping in Stress, Anxiety, Depression among Nursing Students of Purbanchal University in Kathmandu

Journal of Nepal Health Research Council, 2019
Background: Unresolved stress among nursing students may occur due to the failure to use effective coping strategies, which may lead to problems such as anxiety and depression.The purpose of this study was to determine the prevalence of stress, anxiety ...
Priscilla Samson
doaj   +1 more source

Identifying key risk factors of polycyclic aromatic hydrocarbons and benzene exposure in Korean adult males using machine learning approaches [PDF]

Journal of Men's Health
Background: This study aims to explore the various risk factors associated with exposure to polycyclic aromatic hydrocarbons (PAHs) and benzene in Korean adult males (n = 2744), using data from the Korean National Environmental Health Survey (KoNEHS ...
Haewon Byeon
doaj   +1 more source