This contract concerns the production of analyzes for asbestos and dosage of polycyclic aromatic hydrocarbons
on cores drilled on bituminous materials from the national road network in Lower Normandy, in accordance with the circular of 15/05/2013.
This consultation relates to investigations and analyzes to be conducted to determine the absence or presence of asbestos and / or polycyclic aromatic hydrocarbon
(PAH) in high content in the asphalt, according to The Guide to Help characterization of asphalt.
NYSE: GRA), today announced that it plans to commercialize the DARAMEND process, designed to remediate soil contaminated with toxic organic compounds such as pentachlorophenol (PCP) and a full range of polycyclic aromatic hydrocarbons
Alison Watts (University of New Hampshire); "Uptake of Polycyclic Aromatic Hydrocarbons
in Spartina Alerniflora - Evaluating Risk in Salt Marsh Vegetation"
Contract notice: Search asbestos and polycyclic aromatic hydrocarbons
(pahs) in the aggregates and asphalt in the asphalt of the county road system.
According to estimates by the Michigan Department of Environmental Quality, in one hour of use a typical outdoor wood boiler may emit 160 g of toxics including benzene, dioxins, and polycyclic aromatic hydrocarbons
The researchers' tests turned up all 116 pollutants, which include 13 metals, 14 combustion byproducts known as polycyclic aromatic hydrocarbons
, and 10 byproducts of organophosphate pesticides.
Reducing aromatic hydrocarbons
also cuts emissions of nitrogen oxides, which form acid rain and urban smog, as well as benzene and other highly toxic and potentially cancer-causing compounds.
Kosaric has demonstrated this efficiency in both laboratory and commercial scale operations, which were performed on soil contaminated with pesticides/herbicides, chlorinated phenols, naphthaline and with petroleum/petrochemical contaminants, such as very resistant and toxic polyciclic aromatic hydrocarbons
Benefits include: - taking samples of asphalt coring of pavement layers or stocks, package plastic-bag and pass a test laboratories, in charge of informing the building owner of the presence asbestos or polycyclic aromatic hydrocarbons
Findings published in the 1 August 2005 issue of Environmental Science & Technology suggest, in fact, that coal tar-based parking lot sealant may be a major contributor to stream loads of polycyclic aromatic hydrocarbons
, including many known carcinogens.
Since the 1970s, research has shown that these polychlorinated aromatic hydrocarbons
can disrupt hormonal pathways in animals and people, thereby damaging sperm production and increasing the incidence of certain cancers (SN: 11/4/00, p.
This new formulation has 19 percent aromatic hydrocarbons
, very low sulfur and a cetane rating of 58.
The shale oil has yielded up to 59% aromatic hydrocarbons
in earlier batch retort tests.
consultation is to sample asphalt roads of Dordogne analysis to determine the presence of asbestos or polycyclic aromatic hydrocarbons