نتایج جستجو برای: petroleum hydrocarbons

تعداد نتایج: 41034  

2012
Javier Pinedo Raquel Ibáñez Ángel Irabien

Leakages of oil products derived from petroleum can affect the environment, even causing risks to human. In order to study all the substances that usually are found in a petroleum leakage, it becomes interesting to apply the study to the Total Petroleum Hydrocarbons (TPH) fractions which have similar physico-chemical properties. The purpose of this paper is to perform a suitable risk specific s...

2017

Polycyclic aromatic hydrocarbons (PAHs) represent a group of persisting and prevalent environmental pollutants that are harmful to the environment and humans due to their toxic, mutagenic and carcinogenic potential. The emission of PAHs into the environment has increased with the increase in demand for petroleum products. The incomplete combustion of organic products such as coal, fuel oil, fir...

Journal: :Toxicologic pathology 2012
Mace G Barron

The Deepwater Horizon (DWH) oil spill was the largest environmental disaster and response effort in U.S. history, with nearly 800 million liters of crude oil spilled. Vast areas of the Gulf of Mexico were contaminated with oil, including deep-ocean communities and over 1,600 kilometers of shoreline. Multiple species of pelagic, tidal, and estuarine organisms; sea turtles; marine mammals; and bi...

2011
Hae-Kwan Cheong Mina Ha Jong Seong Lee Hojang Kwon Eun-Hee Ha Yun-Chul Hong Yeyong Choi Woo-Chul Jeong Jongil Hur Seung-Min Lee Eun-Jung Kim Hosub Im

OBJECTIVES This study was conducted to examine the relationship between crude oil exposure and physical symptoms among residents participating in clean-up work associated with the Hebei Spirit oil spill, 2007 in Korea. METHODS A total of 288 residents responded to a questionnaire regarding subjective physical symptoms, sociodemographic characteristics and clean-up activities that occurred bet...

2013

Response issued draft vapor intrusion guidance (EPA, 2002), which specifically states that it is not recommended for Subtitle I underground storage tank (UST) sites. EPA's Office of Underground Storage Tanks (OUST) is thus currently developing guidance to address petroleum vapor intrusion (PVI) at UST sites. OUST has consulted on several occasions with experts in the field of vapor intrusion an...

2007
Robert W. Peters

Groundwater is one of our most valuable natural resource. More than 50% of the U.S. population depends on groundwater for domestic use and more than 95% of the rural population is dependent on groundwater. A major portion of industries and agriculture use groundwater. These numbers suggest that the personal and economic health of the nation is dependent on groundwater. Contamination of groundwa...

2017
Ali Ebadi Nayer Azam Khoshkholgh Sima Mohsen Olamaee Maryam Hashemi Reza Ghorbani Nasrabadi

Bacteria able to produce biosurfactants can use petroleum-based hydrocarbons as a carbon source. Herein, four biosurfactant-producing Pseudomonas aeruginosa strains, isolated from oil-contaminated saline soil, were combined to form a bacterial consortium. The inoculation of the consortium to contaminated soil alleviated the adverse effects of salinity on biodegradation and increased the rate of...

Journal: :Marine environmental research 2009
Stepan Boitsov H K B Jensen Jarle Klungsøyr

Polycyclic aromatic hydrocarbons (PAH) were measured in sediment cores from 13 locations in South-Western Barents Sea as part of a detailed study of the Norwegian seabed under the MAREANO program. The generally low PAH levels found, an average around 200 ng g(-1) dry weight for sum PAH, indicate low inputs of petroleum hydrocarbons to the marine environment in the area. Differences in PAH compo...

Journal: :Science 1946
S B Twiss

S. S. Kurtz, Jr., Chairman; P. D. Bartlett, Vice-Chairman 17 June E. Bright Wilson, Jr., "Infrared and Raman Spectra." R. S. Mulliken, "Iltraviolet Absorption Spectra." 18 June G. W. Wheland, "Theory of the Chemical Bond and Resonance in Hydrocarbons." P. D. Bartlett, "Report of Committee on Future Policy of Conference on Petroleum Chemistry at Gibson Island." L. S. Kassel, "Isomerization Equil...

2013
Merv F. Fingas

Various concepts for oil evaporation prediction are summarized. Models can be divided into those models that use the basis of air-boundary-regulation or those that do not. Experiments were conducted to determine if oil and petroleum evaporation is regulated by the saturation of the air boundary layer. Experiments included the examination of the evaporation rate with and without wind, in which c...

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