Sentences with phrase «how organic aerosol»

New study shows the molecular details of how organic aerosol helps heat up and color the haze over megacities

According to Song, this finding highlights the need to improve how organic aerosols are currently represented in climate models.

Not exact matches

A study published April 7 in PNAS Online Early Edition describes how a team of scientists, including researchers from the University of California, Davis, showed that vapor losses to the walls of laboratory chambers can suppress the formation of secondary organic aerosol, which in turn has contributed to the underprediction of SOA in climate and air quality models.

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.

By adjusting elements of the test, such as the air exchange rate, which is the number of times per hour indoor air is replaced by outdoor air, as well as the concentrations of terpene and ozone in the chamber, the group was able to ascertain how those variables each affected the formation of secondary organic aerosols.

The team evaluated simulated cloud fields from the multi-scale aerosol - climate model and examined how specific human - caused aerosols, such as sulfate, black carbon (soot), and organic carbon affect those clouds and, in turn, the climate.

The PNNL study measured how, in the atmosphere, these aerosols interact with and mix with other volatile or semi-volatile organic compounds, the carbon - centric chemicals that evaporate from both natural and human - made sources.

The team is studying how hydrophobic organic molecules, commonly present in the atmosphere, change the aerosols» formation, properties, and behavior.

These have garnered more than 600 citations advancing our understanding of what the research field calls secondary organic aerosols — or SOA for short — and how the carbon - containing aerosol particles mix in the atmosphere.

Recently, the team tackled how the particles, called secondary organic aerosols (SOAs), evaporate when the relative humidity is high.

How do organic aerosols from biomass burning, which you can see in the red dots, intersect with clouds and rainfall patterns?

New information from dedicated recent and future field campaigns is expected to shed light on organic aerosol formation processes and how they are altered in the presence of anthropogenic pollution.