Sentences with phrase «atmospheric organic aerosol»
Research shows the Clean Air Act was likely responsible for a dramatic decline in atmospheric organic aerosol.
http://news.mit.edu/
When isoprene is in the presence of human - made sulfate particles it transforms into atmospheric organic aerosol particles.
It drives the formation of much of the atmospheric organic aerosol present in our environment.
Using tools located in EMSL, PNNL scientists analyzed the molecular composition of atmospheric organic aerosols, or OA.
Not exact matches
The results may help to explain discrepancies between observations and theories about how volatile organic compounds produced by vegetation are converted into atmospheric aerosol — especially over forested regions.
Berkemeier, T., S.S. Steimer, U. K. Krieger, T. Peter, U. Pöschl, M. Ammann, and M. Shiraiwa: Ozone uptake on glassy, semi-solid and liquid organic matter and the role of reactive oxygen intermediates in atmospheric aerosol chemistry, Physical Chemistry Chemical Physics 18 (18), 12662 - 12674, 2016.
These oligomers are also the starting materials for troubling atmospheric aerosols, known as secondary organic aerosols.
Yet these particles, called secondary organic aerosols, are a dominant atmospheric component in most megacity locations.
However, to make climate models more accurate, we are focused on developing a better understanding of the dynamics of organic aerosols formed from plant - based organic vapors and their interaction with aerosols emitted from human activities,» said Dr. Chen Song, a PNNL atmospheric scientist.
Why It Matters: Current atmospheric computer models do not consider the evolving chemistry of the organic aerosols.
An international team of researchers report in Nature Communications that they made a computer model of the planet's atmospheric conditions: they included natural and human - triggered aerosols, volatile organic compounds, greenhouse gases and other factors that influence temperature, one of which is albedo: the scientist's word for the capacity of terrain to absorb or reflect solar radiation.
Increased biomass can lead to increased emissions of biogases such as dimethyl sulfide and isoprene, which when oxidized in the atmospheric form sulphate and organic aerosols that can nucleate clouds, increasing cloud cover and planetary albedo — the CLAW Hypothesis.
These NCA emissions directly affect particle concentrations and human exposure to nanosized aerosol in urban areas, and potentially may act as nanosized condensation nuclei for the condensation of atmospheric low - volatile organic compounds.