Prenatal ozone: a silent culprit in the battle against childhood obesity

Prenatal exposure to ozone is increasingly recognized as a potential risk factor for childhood obesity, with significant implications for public health. A new study investigates the association between ozone levels during pregnancy and the growth trajectories of children, offering insights into the early-life origins of obesity. The research found that a 10 μg/m³ increase in ozone concentration during pregnancy significantly raises BMI, weight-for-age, and weight-for-length Z scores in children. This exposure is linked to accelerated BMI gain and higher obesity risk in early childhood, highlighting the urgent need to address air quality to protect children’s health.

Large variations in composition and toxicity of ambient particles found in 31 major cities in China

In an effort looking for optimized air pollution control, scientists from Peking University have detected large variations in the composition and toxicity of ambient particles collected from 31 major Chinese cities located across varying latitudes. The results imply an urgent need to rethink the suitability of current air quality standard adopted, i.e., sole use of PM mass concentration.

Tackling the dual threat: a global strategy for PM2.5 and O3 pollution

A pivotal study decrypts the global interplay of particulate matter (PM2.5) and ozone (O3) pollutants, highlighting an urgent call for integrated strategies to curb their detrimental impacts on human health and the environment. This research unveils the spatial and temporal dynamics of compound pollution, offering a blueprint for a coordinated global response.

Planetary boundary layer revealed: satellites illuminate atmospheric mysteries

Unlocking the secrets of Earth’s planetary boundary layer (PBL), a pivotal zone influencing air quality and climate, a new study offers unprecedented insights into atmospheric thermal contrasts (TC). By scrutinizing satellite data, researchers have shed light on how the surface-to-atmosphere temperature gradient affects the detection of atmospheric pollutants.

A new report from the American Lung Association shows nearly 40% of people across the U.S. are living in areas that are heavily polluted.

Susan Anenberg, Director of the GW Climate & Health Institute, and associate professor of environmental and occupational health. Anenberg’s research focuses on the health implications of air pollution and climate change. Recently her team published two studies finding links between…


Children who lived in areas with higher levels of airborne lead in their first five years of life appeared to have slightly lower IQs and less self-control, with boys showing more sensitivity to lead exposure, according to a new study from the NIH Environmental influences on Child Health Outcomes (ECHO) Program.

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.