Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective chemistry Containing more than one aromatic ring system, especially several such rings fused together
  • noun chemistry A polyaromatic compound

Etymologies

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Examples

  • The pollutants we are talking about are known as polyaromatic hydrocarbons and will not accumulate to a high concentration to cause severe damage.

    CNN Transcript Dec 13, 2005 2005

  • In an article published in the European Respiratory Journal, the scientists said cannabis could be expected to harm the airways more than tobacco as its smoke contained twice the level of carcinogens, such as polyaromatic hydrocarbons, compared with tobacco cigarettes.

    On Thursday, the Legg report will be published along with... 2008

  • In an article published in the European Respiratory Journal, the scientists said cannabis could be expected to harm the airways more than tobacco as its smoke contained twice the level of carcinogens, such as polyaromatic hydrocarbons, compared with tobacco cigarettes.

    Original Signal - Transmitting Buzz 2008

  • “So for us, an important goal of the experiment is also to see about the formation of polyaromatic hydrocarbons,” Ehrenfreund told me.

    First Contact Marc Kaufman 2011

  • “So for us, an important goal of the experiment is also to see about the formation of polyaromatic hydrocarbons,” Ehrenfreund told me.

    First Contact Marc Kaufman 2011

  • For example, aquatic organisms that have assimilated UV-B absorbing polyaromatic hydrocarbons have shown phototoxic effects when exposed to UV-B radiation.

    Climate change, interactive changes and stresses in the Arctic 2010

  • Most of those hydrocarbons aromatic and polyaromatic get converted into nice, clean carbon dioxide in American automobiles, mixed right in with our gasoline.

    Energy 101: Hydraulic Fracturing - Vladimir’s blog - RedState 2010

  • Many types of pollutant have been identified in arctic biota and the arctic environment, including polyaromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and heavy metals [98].

    Potential impacts of direct mechanisms of climate change on human health in the Arctic 2009

  • The main public health impact is caused by small airborne particles (particulate matter), their toxic constituents, such as heavy metals and polyaromatic hydrocarbons, as well as by tropospheric ozone.

    Global Environment Outlook (GEO-4)~ Chapter 6 2008

  • There are persistent organic pollutants (POPs) such as DDT, brominated flame retardants and polyaromatic hydrocarbons heavy metals, such as lead, cadmium and mercury, and oxides of nitrogen and sulphur.

    Global Environment Outlook (GEO-4)~ Chapter 3 2008

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