Results 11 to 20 of about 54,052 (308)

Identification of sources of elevated concentrations of polycyclic aromatic hydrocarbons in an industrial area in Tianjin, China [PDF]

open access: yes, 2009
The concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) were determined by gas chromatography equipped with a mass spectrometry detector in 105 topsoil samples from an industrial area around Bohai Bay, Tianjin in the North of China.
Jiao, W.T.   +14 more
core   +1 more source

Need of Improvement in Timing of Prophylactic Antibiotic in Elective Surgery

open access: yesJournal of Nepal Medical Association, 2010
INTRODUCTION: Infections in surgery are major concern of morbidity, mortality, and costs. Timely antibiotic prophylaxis before incision ensures optimum concentration of AP in blood and tissues to prevent surgical site infections .
Jay N Shah   +6 more
doaj   +1 more source

PAHs and Astrobiology [PDF]

open access: yesEAS Publications Series, 2011
In dense molecular clouds, the birthplace of stars and planets, interstellar atoms and molecules freeze onto extremely cold dust and ice particles. These ices are processed by ultraviolet light and cosmic rays forming hundreds of far more complex species, some of astrobiological interest.
openaire   +2 more sources

Inherent and external factors influencing the distribution of PAHs, hydroxy-PAHs, carbonyl-PAHs and nitro-PAHs in urban road dust

open access: yesEnvironmental Pollution, 2022
The distribution and fate of hazardous polycyclic aromatic hydrocarbons (PAHs) and their associated transformed PAHs products (TPPs) notably carbonyl-PAHs (CPAHs), hydroxy-PAHs (HoPAHs), and nitro-PAHs (NPAHs) on urban road surfaces are influenced by diverse factors to varying extent.
Gustav Gbeddy   +3 more
openaire   +3 more sources

Removal of polycyclic aromatic hydrocarbons (PAHs) from hot water extract of dried bonito processing residue using activated carbon [PDF]

open access: yes, 2015
かつお節加工残滓を安全かつ有効に利用する研究の一環として,まず加工残滓の熱水抽出液に PAHs を合計 3217 μg/L 添加したモデル試料の活性炭による PAHs 最適除去条件を有用成分への影響も考慮しつつ検討した。 その結果,PAHs 除去率は最大 99.6% であったが,活性炭の種類による影響が大きかった。続いて,市販品の黒粉 2 種を熱水,エタノール,酢酸エチルで抽出し,PAHs 浸出量を分析した。エタノール抽出で PAHs が最大 12823 μg/L 浸出し,市販品にも高濃度の PAHs ...
任, 恵峰   +7 more
core   +1 more source

Flexible intramedullary nailing for femoral diaphyseal fractures in children

open access: yesJournal of College of Medical Sciences-Nepal, 2017
Background & Objectives: Although various treatment options are available for the treatment of femoral diaphyesal fractures in children, the titanium flexible nailing has gained popularity because it is safe, easy procedure with rapid recovery and ...
Rojan Tamrakar   +7 more
doaj   +1 more source

Reconstructing historical trends of polycyclic aromatic hydrocarbon deposition in a remote area of Spain using herbarium moss material [PDF]

open access: yes, 2010
Herbarium mosses from 1879-1881, 1973-1975 and 2006-2007 were used to investigate the historical changes of atmospheric deposition of polycyclic aromatic hydrocarbons (PAHs) at a remote site located in Northern Spain.
Gonzalez, Laura   +11 more
core   +1 more source

Summertime PAH assembly in Mediterranean air: The Herceg Novi sampling station as an example [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
The results of an analysis of the total suspended particles (TSP), total solvent organic extracts (TSOE), and polycyclic aromatic hydrocarbons (PAHs) in aerosol samples collected from the atmosphere of Herceg Novi from 17th June to 15th September in 1998
Jovanović Vladimir Ž.   +2 more
doaj   +1 more source

Oil Fields Flare Pollution

open access: yesEurasian Journal of Science and Engineering, 2022
Environmental protection from air pollution is a priority for major cities across the world. This study will discuss the risk of gas emissions from oil fields, using collected data around an oil field in Kurdistan region.
Jafar A. Ali, Loghman Khodakarami
doaj   +1 more source

Distribution of heavy metals and pesticides residues in sediments of some rivers in Ekiti state, Southwest Nigeria

open access: yesEQA, 2023
Sediments are habitats and major sources of nutrients for benthic organisms. High concentration of pollutants can impact negatively on the lives of such organisms and ultimately on the lives of human beings who may feed on them.
Olayinka D. Akodu   +2 more
doaj   +1 more source

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