نتایج جستجو برای: petrol engines
تعداد نتایج: 25179 فیلتر نتایج به سال:
Road transportation has most adversely affected the air quality in Delhi. The existing fleet of 3.5 million motor vehicles in Delhi contributes nearly 70% of the total air pollution load. To improve the air quality status in Delhi various measures viz. improvement in fuel quality and engine technology, use of exhaust treatment devices, use of cleaner alternative fuels (CNG) etc. have been adopt...
In this experiment the effects of lead and lead-free petrol applied at the following doses of: 0, 2, 4 and 6 cm • kg' of soil on growth and development of triticale and biochemical properties of the soil were studied. For detoxication of petrol organic amendment with barley straw was applied. The experiment was performed in two experimental series with and without triticale cover. It was found ...
Background and objective : Gasoline is a complex mixture of more than 500 hydrocarbons. The elimination of lead from petrol has been associated with the addition of significant amounts of hematotoxic monocyclic aromatic hydrocarbons such as benzene, toluene and xylene (BTX). The main purpose of this study was to ascertain whether exposure to unleaded petrol, under normal working conditions, i...
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Motor vehicle emissions are a major anthropogenic source of air pollution. In this study, a comparison of amounts of major emission pollutants that they regulated in UK was done for three types of automobile includes standard petrol, petrol with TWC and diesel. Also a comparison of amount of carbon dioxide emission that it is important in ...
The health aspects of the use of lead in petrol were evaluated in the 1920s in the United States of America and, in spite of warnings from certain lead-toxicity experts, lead addition to petrol became standard international practice. Available data now show that lead in petrol at the scale of use in the 1970s produced significant environmental lead contamination and increased average blood-lead...
BACKGROUND The aims of this study were evaluation of exposed to xylenes in low concentration and compare urinary level of methyl hippuric acid in taxi drivers and petrol stations workers in West of Iran. METHODS This observation study was carried out on samples of the exposed men to xylenes in two occupational groups in Hamadan City (west of Iran) from March 2003 to March 2004. Subjects inclu...
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