نتایج جستجو برای: heavy hydrocarbons

تعداد نتایج: 150933  

2012
Giuseppe Valacchi Claudia Sticozzi Alessandra Pecorelli Franco Cervellati Carlo Cervellati Emanuela Maioli

Living organisms are continuously exposed to environmental pollutants. Because of its critical location, the skin is a major interface between the body and the environment and provides a biological barrier against an array of chemical and physical environmental pollutants. The skin can be defined as our first defense against the environment because of its constant exposure to oxidants, includin...

Journal: :Environmental science and pollution research international 2011
Reginald B Kogbara Yaolin Yi Abir Al-Tabbaa

PURPOSE Stabilisation/solidification (S/S) has emerged as an efficient and cost-effective technology for the treatment of contaminated soils. However, the performance of S/S-treated soils is governed by several intercorrelated variables, which complicates the optimisation of the treatment process design. Therefore, it is desirable to develop process envelopes, which define the range of operatin...

Journal: :Journal of hazardous materials 2013
Guangji Hu Jianbing Li Guangming Zeng

Oily sludge is one of the most significant solid wastes generated in the petroleum industry. It is a complex emulsion of various petroleum hydrocarbons (PHCs), water, heavy metals, and solid particles. Due to its hazardous nature and increased generation quantities around the world, the effective treatment of oily sludge has attracted widespread attention. In this review, the origin, characteri...

Journal: :Gaceta sanitaria 2008
Nuria Aragonés Beatriz Pérez-Gómez Jenaro Astray Elisa Gil Ana María Pérez-Meixeira Concha de Paz Andrés Iriso Margot Cisneros Amparo de Santos Pedro Arias Juan Carlos Sanz Angel Asensio Mario Antonio Fernández María José González América de León José Miguel García-Sagredo Marina Pollán Gonzalo López-Abente José Frutos García Mercedes Martínez

In Spain environmental surveillance has mainly relied on measures of selected pollutants in air, water, food and soil. A study was conducted in Madrid to assess the feasibility of implementing a surveillance system of exposure among the general population to specific environmental pollutants, using bio-markers. The project was basically focused on the environment surrounding newborns. Hence, th...

2011
Stefan Tukaj Joanna Bisewska Katarzyna Roeske Zbigniew Tukaj

The objective of this study was to examine the influence of different stressors, including cadmium (heavy metal), anthracene (polycyclic aromatic hydrocarbon-PAH) and chloridazon (herbicide), on population growth and biosynthesis of cytoplasmic HSP70 in Lemna minor (duckweed) in short (4 h)- and long (7 days)-term tests. A heat shock response was confirmed in Lemna exposed to high temperature: ...

2017
Ivy Shiue

Links between environmental chemicals and human health have emerged, but the effects on sleep health were less studied. Therefore, the aim of the present study was to investigate the relationships of different sets of environmental chemicals and common sleep troubles in a national and population-based setting. Data were retrieved from the United States National Health and Nutrition Examination ...

Journal: :Journal of applied toxicology : JAT 2001
F Gil A Pla

The presence of a xenobiotic in the environment always represents a risk for living organisms. However, to talk about impregnation there is a need to detect toxicity in the organism, and the concept of intoxication is related to specific organ alterations and clinical symptoms. Moreover, the relationship between the toxic levels within the organism and the toxic response is rather complex and h...

2016
Abdullah Al-Sayegh Yahya Al-Wahaibi Sanket Joshi Saif Al-Bahry Abdulkadir Elshafie Ali Al-Bemani

Crude oil contamination is one of the major environmental concerns and it has drawn interest from researchers and industries. Heavy oils contain 24-64% saturates and aromatics, 14-39% resins and 11-45% asphaltene. Resins and asphaltenes mainly consist of naphthenic aromatic hydrocarbons with alicyclic chains which are the hardest to degrade. Crude oil biodegradation process, with its minimal en...

Journal: :Environmental science and pollution research international 2014
Lu Sun Xiaoyong Liao Xiulan Yan Ganghui Zhu Dong Ma

The heavy metal and polycyclic aromatic hydrocarbons (PAHs) contents were evaluated in surface soil and plant samples of 18 wild species collected from 3 typical industrial sites in South Central China. The accumulative characteristics of the plant species for both heavy metal and PAHs were discussed. The simultaneous accumulation of heavy metal and PAHs in plant and soil was observed at all th...

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