Sentence examples for existing concentrations from inspiring English sources

The 1992 agreement includes several statements specifying that the first steps toward limiting warming should be taken by the industrial powers that stoked the atmosphere with the vast majority of its existing concentrations of long-lived greenhouse gases, mainly carbon dioxide.

The water quality indices of significant and influential parameters aim at giving a single value to the water quality of a source on the basis of a system which translates their existing concentrations in a sample into a single value.

It continued: "We need to update existing concentration limits to check future growth of our largest financial institutions and to make the system safer".

The atoms of carbon formed on various active centers of the surface of a separated catalyst particle, due to the existing concentration gradient, diffuse toward the board of contact of the particles with the nanotube, where their crystallization occurs.

Chloride ions can enter the concrete by ionic diffusion due to the existing concentration gradient between the exposed surface and the pore solution of the cement matrix (i.e., the diffusion driving force) (Martín-Pérez et al. 2000).

Due to the existing concentration gradient, nitrates migrate through the membrane and are reduced to nitrogen gas by the autotrophic biomass attached on the exterior of the fibres, and fed with an external source of organic carbon.

Therefore, the amount of isoamyl acetate produced is influenced by the existing concentration of amyl alcohols in the medium.

The growing use of coal for heating and electric power generation and diesel engines in light duty motor vehicles will increase not only the existing atmospheric concentrations of criteria pollutants such as NO2, SO2, O3 and fine particulates, but also the concentrations of a number of highly reactive gaseous copollutants such as HONO, HONO2, PAN and the nitrate radical, NO3.

Phytoremediation can provide an alternative to these techniques, but existing cyanide concentrations at contaminated sites often exceed the capacities of plant metabolism.

Depending upon the existing compound concentrations, its physicochemical properties and the intake route, such external exposure, will result in different internal exposures.

SCFAs are the predominant anions in the content of the large intestine, existing at concentration of ~100 mM and mainly consisting of acetate, propionate, and butyrate.