tailieunhanh - Glossary of Volatile Organic Compounds

Food purchasing is an important expression of food habits. This paper therefore examines the factors associated with a household’s decision to purchase organic food products because such information is not yet available for the study area despite anecdotal evidence of the growing importance of organic products in the country. A randomly chosen sample of 200 consumers in rural and urban areas of the province’s two major regions, the former Ciskei and Transkei homeland areas, were enumerated. By means of structured questionnaires, the respondents were interviewed in relation to where they buy their groceries from,. | Glossary of Volatile Organic Compounds Ethylbenzene Carbon tetrachloride Benzene 1 1 1-Trichloroethane Xylenes Tetrachloroethylene Toluene Trichloroethylene Styrene 1 4-Dichlorobenzene Ethylbenzene Ethylbenzene is a colorless flammable liquid found in natural products such as coal tar and petroleum. It is also found in manufactured products such as inks insecticides and paints. Ethylbenzene is a minor component of JP-8 fuel. Route of exposure Ethylbenzene is most commonly found as a vapor in the air. In surface water ethylbenzene breaks down by reacting with other chemicals found naturally in water. In soil most ethylbenzene is broken down by soil bacteria. Ethylbenzene is released into the environment from burning oil gas and coal and from discharges of ethylbenzene from factories. Ethylbenzene gets into the soil by spills of gasoline or other fuels and poor disposal of industrial and household wastes. People are exposed to ethylbenzene from gasoline use of ethylbenzene as a solvent in pesticides carpet glues varnishes and paints and use of tobacco. Some people are exposed to ethylbenzene at work. Gas and oil workers can be exposed to ethylbenzene through skin contact or by breathing ethylbenzene vapors. Varnish workers spray painters and people involved in gluing operations also can be exposed to high levels of ethylbenzene. Health effects Exposure to high levels of ethylbenzene in air can cause dizziness throat and eye irritation tightening of the chest and burning feeling in the eyes. At high concentrations ethylbenzene will depress the central nervous system in humans and in animals. A high concentration exposure to ethylbenzene in humans can cause liver problems. Studies in laboratory animals showed problems with the nervous system liver kidneys and eyes from breathing ethylbenzene in air. No studies in people have shown that ethylbenzene exposure can cause cancer. Measuring exposure In a large . study 95 of the participants in the study had an .

• Hoá học
• Chemotaxonomic Study
• Quinone Compounds
• Heartwood
• Javanese Teak
• Using GC MS
• Gas Chromatographic
• Compounds in Field Peas
• Chemotaxonomic
• Study Based