News

Do immature lungs have air–blood barriers that are more permeable to inhaled nanoparticles than those of fully developed mature lungs?

August 04, 2020

A recent collaborative study between Harvard and UC Davis produced data backing the notion that nanoparticles (NP) more frequently crossed the air-blood lung barrier to the rest of the body in infant rats than adults. Fascinatingly, this higher permeability demonstrates immature lungs do not follow the same directives as mature lungs. 

PM2.5 and Ozone only slightly reduced during the COVID lockdown in China

July 29, 2020

A recent study by the University of Leeds and the Southern University of Science and Technology in Shenzhen divulged PM2.5 had only a small reduction across China and it was not lowered at all in Northeast China. The PM2.5 reduction of 11% across China was disappointing in comparison to the reduction 27% of NO2 across China.  

Lead author Ben Silver, from the University of Leeds, said: “PM2.5 particles had only a modest reduction and are the most harmful constituent of air pollution, as they travel deep into the lungs and bloodstream and damage the lungs and heart.

Job Opening: Postdoctoral Research Associate

June 30, 2020

One postdoctoral research position is open in the Air Quality Research Center (AQRC) at the University of California, Davis (UC Davis). This Postdoctoral scholar will be working primarily in a project aiming at determination of the emissions of greenhouse gases (GHG) and other priority pollutant gases on pre and post-installation of anaerobic digester for the following types of waste treatments: green waste/food waste mixture; wastewater sludge, and dairy waste. The successful candidate will work with a research team led by Prof. Frank Mitloehner and Dr.

Cleaner Air in California as a Result of the Stay-at-home Order

April 24, 2020

Cleaner Air in California as a Result of the Stay-at-home Order

In a KCRA 3 article, the UC Davis Air Quality research Center's Director, Anthony Wexler, explains why we have been experiencing much better air quality currently. 

“There’s very little traffic compared to what there normally is, and so there’s much less emissions from cars and trucks than there normally are,” Wexler said. “That gives us this blessing at this time where we need as many blessings as we can get. It gives us the blessing of wonderful air quality.”

English Scientists Link Coronavirus Deaths to Exposure to toxic Air

April 24, 2020
How Toxic Air Leads to Higher Coronavirus Cases and Deaths

Comparing annual daily averages of NOx and NO2 levels to total coronavirus cases and deaths, researchers at the University of Cambridge have found that higher levels of pollution have lead to higher coronavirus cases and deaths. This research suggests a correlation and further research is required to confirm the link between toxic air pollution and coronavirus cases and deaths. 

Air Pollution and Brain Health

April 10, 2020

What is Air Pollution? What is the evidence linking air pollution to adverse effects on the brain? How does air pollution alter brain development and brain function? These are just a few of the questions answered in the publication "Air Pollution and Brain Health" by Professor of Neurotoxicology Dr. Pamela Lein and Distinguished Professor Dr. Anthony Wexler of UC Davis.

COVID-19 death rates increase due to long-term exposure to PM2.5

April 07, 2020

More and more we are seeing results from recent studies showing a correlation between higher COVID-19 death rates and people who live in air pollution riddled areas. Both in Italy and the United States, people that reside in areas with higher concentrations of PM2.5 in the atmosphere are at least 12% more likely to not survive a bout with COVID-19. These findings are consistent with the findings from the 2002-2003 SARS outbreak that claimed 349 lives in China. 

Aerosols within the coronavirus pandemic

April 03, 2020
Does COVID-19 transmit via expiratory particles?

UC Davis Air Quality Research Director, Dr. Tony Wexler, looked into what role aerosols play in the transmission of coronavirus particles with colleagues William Ristenpart (UC Davis), Nicole Bouvier (Icahn School of Medicine at Mount Sinai), and Sima Asadi (UC Davis).

Reviewing the brief knowns on aerosol transmission of particles and earlier research on other coronavirus', they argue

that speech plausibly serves as an important and under-recognized transmission mechanism for COVID-19.