Sentences with phrase «from precursor gases»

The tiny aerosol particles can originate from e.g. dust, pollen or sea spray, emitted straight into the atmosphere or they can be formed from precursor gases.

Not exact matches

And structures must be fabricated from the substrate surface up at continually decreasing growth rate and from a limited number of precursor gases available.

Leftover gas from the formation of the sun may have persisted into the era of planetary precursors, Holland and his co-authors note, so the dual capture of solar gas in and around planets is plausible enough.

Those precursor gases come from manmade sources like fossil fuel combustion and production, biofuel combustion, industrial processes and biomass burning.

«We use 1280 years of control simulation, with constant preindustrial forcings including constant specified CO2, and a five - member ensemble of historical simulations from 1850 — 2005 including prescribed historical greenhouse gas concentrations, SO2 and other aerosol - precursor emissions, land use changes, solar irradiance changes, tropospheric and stratospheric ozone changes, and volcanic aerosol (ALL), following the recommended CMIP5 specifications.

Consequently, the most advanced climate models now require, in addition to concentrations or emissions of greenhouse gases (CO2, CH4, N2O and halocarbons), emissions of reactive gases and aerosol precursor compounds (SO2, NOx, VOC, BC, OC and NH3), to model atmospheric chemistry and interactions with the climate system.6 For most variables, a sectoral differentiation would improve the quality of the calculations (e.g. from power plants and agricultural burning).