Highways through historically redlined areas likely cause air pollution disparities today

Historically “redlined” areas – neighborhoods with primarily Black or immigrant communities – are exposed to more air pollution than other urban neighborhoods. According to research published in ACS’ Environmental Science & Technology, the cause could relate to nearby highways or industrial parks.

GW Experts Available: EPA Strengthens Rule on Harmful Soot Pollution

The U.S. Environmental Protection Agency is strengthening limits on soot, a harmful air pollution in which studies have shown that fine particles kill thousands of Americans every year. According to The Washington Post, the stricter standards could prevent thousands of premature…

UC Irvine-led study links long-term air pollution exposure to postpartum depression in SoCal

Irvine, Calif., Oct. 31, 2023 — Long-term maternal exposure to common air pollutants, both before and after childbirth, has been linked to increased risk of postpartum depression for mothers – with symptoms ranging from anxiety and irritability to suicide – and may lead to cognitive, emotional, psychological and behavioral impairments in their infants, according to research led by the University of California, Irvine.

‘Roving sentinels’ discover new air pollution sources

Google Street View cars equipped with instrumentation sampled air quality at a scale fine enough to capture variations within neighborhoods in the Salt Lake Valley. A new atmospheric modeling method, combined with these mobile observations, can be used to identify pollution emission sources in many cities.

World can now breathe easier

Global, population-weighted PM2.5 exposure — related to both pollution levels and population size — increased from 1998 to a peak in 2011, then decreased steadily from 2011 to 2019, largely driven by exposure reduction in China and slower growth in other regions, new research shows.

Lung Disease Physicians and Researchers Disappointed by Environmental Protection Agency’s Slow-Motion Action to Curb Smog Ozone Air Pollution

In response to the Aug 21 announcement by the U.S. Environmental Protection Agency (EPA) that the agency will delay action on lowering the National Ambient Air Quality Standard for ozone pollution, American Thoracic Society President M. Patricia Rivera, MD, ATSF, issued the following statement

Paths for reducing harmful air pollution in South Asia identified

A new analysis of fine particulate matter exposure led by researchers at Washington University in St. Louis illuminates ways to improve health in India, Pakistan, Bangladesh, Nepal, Bhutan, Sri Lanka and Myanmar

Dr. David Winter with Baylor Scott & White discusses the latest concerns about air quality in the US

David Winter, MD, at Baylor Scott & White Health, answers the most common patient questions and reacts to the latest medical research. How bad is the current air pollution in the northeastern U.S.? (SOT@ :14, TRT :42) Who is most…

UC Irvine study shows traffic-related air pollution in Irvine weakens brain function

Researchers from the University of California, Irvine have found that exposure to traffic-related air pollution in Irvine led to memory loss and cognitive decline and triggered neurological pathways associated with the onset of Alzheimer’s disease.

Conformer-Dependent Reactivity of Carbonyl Oxides Leads to Dramatically Different Atmospheric Fates

The air pollutant secondary organic aerosol (SOA) forms when ammonia and amines react with oxygenated species. When ammonia is present when alkenes react with ozone, SOA increases in size and numbers. This may be due to Criegee intermediates. New research found that a particular amine, dimethylamine, reacts 34,000 times faster with one version of the Criegee intermediate acetaldehyde oxide than with another version of the same compound.

UC Irvine Earth system scientists plot pathways for climate-conscious air travel

With its high-carbon footprint, air travel challenges the goal set by many countries of stabilizing global mean temperature by the middle of the 21st century. The aviation sector could achieve net-zero carbon emissions by 2050 through a combination of technology and a change in habits, but it’s not going to be easy, according to Earth system scientists at the University of California, Irvine.

How UCI saved the ozone layer

On Jan. 9, a United Nations-backed panel of experts announced that Earth’s protective ozone layer is on track to recover within four decades, closing an ozone hole over the Antarctic that was first noticed in the 1980s. But it was research conducted at the University of California, Irvine in the 1970s that made this good new possible.

EPA Awards $1 Million to UAlbany Researchers for Community Air Pollution Monitoring Projects

The projects are focused on enhancing air quality monitoring in communities across the U.S. in areas that are underserved, historically marginalized and overburdened by pollution, supporting President Biden’s Justice40 Initiative.

Low-Cost Air Quality Sensors Deliver Insights on Environmental Injustice

Networks of low-cost air quality sensors are able to detect temporary peaks and “hot spots” in air pollution and could be a better tool for tracking short-term changes in air quality in communities than regulatory sensors. Monitoring fine-scale, real-time changes in air pollution could support efforts to protect public health.

Does Traffic-Related Air Pollution Increase Risk of Dementia?

Higher exposure to a certain type of traffic-related air pollution called particulate matter may be linked to an increased risk of dementia, according to a meta-analysis published in the October 26, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Researchers specifically looked at fine particulate matter, PM2.5, which consists of pollutant particles of less than 2.5 microns in diameter suspended in air. The meta-analysis included all available studies on air pollution and risk of dementia.

UCI study finds 53 percent jump in e-waste greenhouse gas emissions between 2014, 2020

Greenhouse gas emissions into the atmosphere from electronic devices and their associated electronic waste increased by 53 percent between 2014 and 2020, including 580 metric tons of carbon dioxide in 2020 alone, according to University of California, Irvine researchers.

UCLA-led study finds California’s greenhouse gas reductions could be wiped out by 2020 wildfires

A new analysis led by researchers with the University of California has found the 2020 wildfires in the state, the most disastrous wildfire year on record, put twice as much greenhouse gas emissions into the Earth’s atmosphere as the total reduction in such pollutants in California between 2003-2019.

Alzheimer’s Disease: Making Connections between Air Pollution and Neurodegeneration

Exposure to urban air pollutants such as ozone (O3) is increasingly linked with Alzheimer’s disease; yet because ozone cannot travel from the lungs to the brain, the mechanism by which it contributes to development of Alzheimer’s has been poorly understood.…