Joel Thornton
February 8, 2024
Foul fumes pose pollinator problems
Scientists at the University of Washington have discovered that nighttime air pollution — coming primarily from car exhaust and power plant emissions — is responsible for a major drop in nighttime pollinator activity. Nitrate radicals (NO3) in the air degrade the scent chemicals released by a common wildflower, drastically reducing the scent-based cues that its chief pollinators rely on to locate the flower. The findings, published Feb. 9 in Science, are the first to show how nighttime pollution creates a chain of chemical reactions that degrades scent cues, leaving flowers undetectable by smell. The researchers also determined that pollution likely has worldwide impacts on pollination.
November 2, 2020
Flying through wildfire smoke plumes could improve smoke forecasts
The biggest study yet of West Coast wildfire plumes shows how a smoke plume’s chemistry changes over time. Results suggest current models may not accurately predict the air quality downwind of a wildfire.
May 11, 2020
EarthLab announces Innovation Grant recipients for 2020
Research projects funded for 2020 by EarthLab’s Innovation Grants Program will study how vegetation might reduce pollution, help an Alaskan village achieve safety and resilience amid climate change, organize a California river’s restoration with tribal involvement, compare practices in self-managed indigenous immigrant communities and more.
March 26, 2019
Air quality agencies can breathe easier about current emissions regulations
A University of Washington-led study provides a fuller picture of the relationship between nitrogen oxides — the tailpipe-generated particles at the center of the Volkswagen scandal, also known as NOx, — and PM2.5, the microscopic particles that can lodge in lungs.
July 23, 2018
Study shows why eastern U.S. air pollution levels are more stagnant in winter
Observations over the eastern U.S. show why emissions reductions haven’t achieved the same results in winter as they have in summer.
September 7, 2017
Ship exhaust makes oceanic thunderstorms more intense
More than a decade of lightning strikes over the Indian Ocean shows for the first time that ship exhaust along major shipping routes alters thunderstorm intensity.
February 20, 2015
Winter air campaign tracking how pollution handles the cold
A UW atmospheric scientist is leading a six-week survey of eastern U.S. skies to see how winter conditions affect air quality.
February 26, 2014
Pine forest particles appear out of thin air, influence climate
German, Finnish and U.S. scientists have discovered how gas wafting from coniferous trees creates particles that can reflect sunlight or promote formation of clouds.
July 9, 2013
Hazy days of summer: Southeast U.S. field work measures mercury, smog
Dozens of atmospheric scientists, including three University of Washington faculty members, are taking part in what’s being described as one of the largest atmospheric field campaigns in decades.
