Sentences with phrase «organic aerosols formed»

PNNL scientists found that secondary organic aerosols formed in the presence of the toxic pollutant known as polycyclic aromatic hydrocarbons (PAHs) trapped the PAH molecules inside, shielding them from degradation.

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.

Not exact matches

The rapidly formed reaction products are usually very non-volatile and are precursors for the secondary organic aerosol, which is important for the earth's climate.

Secondary organic aerosols are formed primarily through chemistry that occurs in the gas phase.

Even though open windows bring in more ozone from outside, the reduction in the indoor limonene concentration and SOA formation strength more than make up for it, as less secondary organic aerosol is formed inside.

Tar sands study co-author Shao - Meng Li, a senior research scientist at Environment and Climate Change Canada, said that in highly - polluted regions, some organic aerosols can prevent clouds from forming.

Their reaction products form the so - called secondary organic aerosol.

Further investigation showed that Titan's atmosphere has organic aerosols, called tholins, that likely formed from molecules such as methane and nitrogen.

Secondary organic aerosols are formed through complex physical and chemical interactions between pre-existing aerosols in the atmosphere and trace organic gases emitted from both human - caused and natural sources.

The organic aerosol particles that coat the toxic hitchhikers are wafted into the atmosphere through emissions from trees (like those that produce the smell of pine trees), and burning biomass and fossil fuel to form a semi-solid sap - like casing surrounding and protecting the particle's payload from breaking down in the atmosphere.

Phytoplankton — the tiny, green algae at the surface of the ocean — produce airborne gases and organic matter that form marine aerosols.

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.

· The study found evidence to link brown carbon — a form of organic carbon aerosols — to warming.

Aerosol «blue haze», as seen here in the Great Smoky Mountains in North Carolina, is formed by the oxidation of volatile organic compounds emitted by trees.

With regard to the actual content of the press release quoted, it isn't clear if the process they report on (aerosol particles, particularly organic chemicals, getting smaller over time) makes them better or worse at forming clouds and their other atmosphere cooling functions.

Organic aerosols are emitted as primary aerosol particles or formed as secondary aerosol particles from condensation of organic gases considered semi-volatile or having low volatility.