Iran points out that some of the hydrocarbons, such as polycyclic aromatic hydrocarbons, are very toxic.

The dry deposition was in the form of gaseous pollutants and soot particles containing heavy metals and polycyclic aromatic hydrocarbons, including benzoapyrene, which is a known carcinogen.

While being toxic to marine life, polycyclic aromatic hydrocarbons (PAHs), the components in crude oil, are very difficult to clean up, and last for years in the sediment and marine environment.

Iran states that its territory was exposed to wet deposition from approximately 350,000 tonnes of soot, as well as nitrogen and sulphur oxides, organic carbons, heavy metals and polycyclic aromatic hydrocarbons from the oil well fires in Kuwait.

Vice Ministry of Hydrocarbons (Ministry of Mining and Hydrocarbons)

grain with its husk and aromatic herbs .

grain with its husk and aromatic herbs .

The name is a portmanteau of aromatic polyamide .

Cyclic compounds may or may not be aromatic.

the grain in the blade and aromatic herbs .

the grain in the blade and aromatic herbs .

The enzymes remanufactured the hydrocarbons into carbohydrates fungal sugars.

and the gold of that land is good. There is aromatic resin and the onyx stone.

Burning hydrocarbons (natural gas and petrol) yields both water and CO2.

The presence of an amine group strongly increases the reactivity of the aromatic ring, due to an electron donating effect.

And as you're looking at this system, if hydrocarbons are concentrated sunlight, then bioenergy works in a different way. And we've got to start thinking of oil and other hydrocarbons as part of these solar panels.

Organochlorine hydrocarbons (e.g., DDT) could be separated into dichlorodiphenylethanes, cyclodiene compounds, and other related compounds.

In domestic refrigeration he stated that HFC 134a and hydrocarbons continued to be dominant alternatives.

A few deals to export Russian hydrocarbons to China can be expected, but not much more.

CAMBRIDGE The prices of hydrocarbons, minerals, and agricultural commodities have been on a veritable roller coaster.

Bacteria capable of digesting the hydrocarbons in petroleum are often used to clean up oil spills.

It consists of a complex mixture of hydrocarbons of various molecular weights, plus other organic compounds.

The reservoir must also be permeable so that the hydrocarbons will flow to surface during production.

But the distribution of proceeds from hydrocarbons is irregular, and the central government has accumulated significant arrears.

Putin, for his part, built a great energy power, turning the country into a banana republic with hydrocarbons.

Oil and gas companies are taxed 46 percent on income derived from the sale of hydrocarbons and derivative products.

3.10.1.6.1 A review of the medical literature on chemical aspiration revealed that some hydrocarbons (petroleum distillates) and certain chlorinated hydrocarbons have been shown to pose an aspiration hazard in humans. Primary alcohols, and ketones have been shown to pose an aspiration hazard only in animal studies.

For example, a number of research institutions across developing countries have discovered the medicinal uses of aromatic and medicinal plants, but are unable to commercialize those findings.

Few countries are as dependent on the Persian Gulf region s hydrocarbons as is India, which imports almost 80 of its consumption.

Their good fortune is not due to their domestic policies, but to hydrocarbons in Azerbaijan s case and, in Belarus, to Russian subsidies.

The hydrocarbons sector secures Russian growth, undermines the power of Arab producers and OPEC, and thus promises a decrease in oil prices.

But the most crucial and almost always overlooked point about fracking is that shale gas, like all hydrocarbons, can be used only once.

This relatively rich, opposition controlled, ethnically mixed, and more conservative province, blessed with fertile lowlands and hydrocarbons, voted for autonomy by a wide margin.

George A. Olah prepared the so called magic acid, so named for its ability to attack hydrocarbons, by mixing antimony pentafluoride (SbF5) and fluorosulfonic acid (FSO3H).

There are over 600 known carotenoids they are split into two classes, xanthophylls (which contain oxygen) and carotenes (which are purely hydrocarbons, and contain no oxygen).

Because natural gas combustion produces fewer greenhouse gases than other hydrocarbons, such as coal or oil, it can be a bridge to a less carbon intensive future.

Only the world s political and economic heavyweights, the main industrialized countries that remain by far the biggest consumers of hydrocarbons, can initiate change on a global scale.

Rising oil prices are due to the sharp increase in demand by the major consumers, which have not adopted effective policies to reduce their dependency on hydrocarbons.

A few deals to export Russian hydrocarbons to China can be expected, but not much more. Nonetheless, the visit will highlight several important features of the bilateral relationship.

Indeed, the tax seems to fall mostly on foreign suppliers of coal (and to a lesser extend on foreign suppliers of hydrocarbons in the Middle East and Russia).

France, for its part, has on a number of occasions been the victim of accidents, raising questions about the maritime transportation of hydrocarbons and its serious environmental impact.

Climate change and improved banking and financial regulation head the current agenda, but soon global agreement will be needed on access to resources ranging from hydrocarbons to minerals to agriculture.

Restructuring relations between the state and the private sector in the hydrocarbons sector has provided the central government with the resources and capacities needed to rebuild an extremely weak state.

For example, they may be synthetic organochlorides such as plastics and pesticides, or naturally occurring organic chemicals such as polyaromatic hydrocarbons (PAHs) and some fractions of crude oil and coal.

We regret, however, the specific focus on that issue, since safety and security measures in general should be strengthened for the maritime transportation of all hazardous materials and pollutants, particularly hydrocarbons.