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Exposure to air pollution before and after birth may affect fundamental cognitive abilities

A new study found that exposure to particulate matter with a diameter of less than 2.5 μm during pregnancy and childhood is associated with reduced fundamental cognitive abilities, such as working memory and executive attention in boys. The study included 2,221 children between 7 and 10 years old attending schools in Barcelona.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEnvironmental Health Perspectives·DateMay 23, 2019

Scientists discover the source of new CFC emissions

A new study by an international team of scientists identified a significant increase in CFC-11 emissions in eastern China since 2013, posing a threat to the recovery of the stratospheric ozone layer. The findings suggest that new production of CFC-11 has taken place in the region, primarily for building insulation and refrigerators.

SourceUniversity of Bristol·JournalNature·DateMay 22, 2019

Kids living near major roads at higher risk of developmental delays, NIH study suggests

Young children who live close to a major roadway are twice as likely to score lower on tests of communications skills. Children born to women exposed during pregnancy to higher-than-normal levels of traffic-related pollutants have a small but significantly higher likelihood of developmental delays.

Phasing out air pollution emissions

A recent study suggests that rapidly phasing out air pollution emissions can prevent approximately 3.6 million avoidable deaths each year, while also increasing rainfall in drought-prone regions and limiting global warming. The researchers found that removing fossil fuel-related and all anthropogenic emissions could achieve the 2°C tar...

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMar 25, 2019

Study examines indoor exposure to air pollution

A recent study found that short-term wood burning in small-scale room heaters and sauna stoves significantly increased residents' daily exposure to particulate air pollution. The study highlights the importance of natural ventilation in reducing indoor levels of hazardous particles.

SourceWiley·JournalIndoor Air·DateFeb 21, 2019

Prenatal forest fire exposure stunts children's growth

Research from Duke University and National University of Singapore reveals pre-natal exposure to forest fire haze leads to a 1.3-inch decrease in expected height at age 17, resulting in long-term human capital losses and permanent stunting effects on children's growth.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateFeb 19, 2019

Air pollution linked to autism: study

A Monash University study found a strong link between air pollution and the development of autism spectrum disorder (ASD) in children. Exposure to fine particles (PM2.5) from vehicle exhausts, industrial emissions, and other sources increased the risk of ASD by up to 78%. The study adds to previous research on prenatal air pollution ex...

SourceMonash University·JournalEnvironment International·DateNov 5, 2018

The when, where and what of air pollutant exposure

Researchers in South India measured personal exposure to fine particulate matter using a combination of techniques, finding significant differences between men and women. Men showed higher levels of personal exposure throughout the day, while women's exposures were related to cooking and industrial activities.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateOct 31, 2018

Air pollution may be linked to heightened dementia risk

A study found associations between air pollution and dementia diagnoses in London patients, with higher NO2 and PM2.5 levels linked to a 40% increased risk of dementia. The study's findings suggest that traffic-related air pollution may contribute to neurodegeneration, particularly for Alzheimer's disease.

SourceBMJ Group·JournalBMJ Open·DateSep 18, 2018

Risk gene for alzheimer may aggravate neurological effects of air pollution in children

A new study found that children carrying the ε4 variant of the APOE gene may experience adverse effects from traffic-related air pollution, including higher behaviour problem scores and slower attention capacity. The findings suggest that this genetic variant could exacerbate air pollution's impact on neurodevelopment.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEnvironmental Health Perspectives·DateSep 6, 2018

Social position determines pregnant women's exposure to air pollution

A study of 30,000 pregnant women across nine European cities found associations between socio-economic status and exposure to environmental hazards such as air pollution, noise, and lack of green spaces. The findings highlight the need for urban planners to address environmental inequalities to reduce health disparities in pregnancy.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEnvironmental Health Perspectives·DateAug 16, 2018

Environmental regulations drove steep declines in US factory pollution

A study by University of California, Berkeley economists found that air pollution emissions from US manufacturing fell by 60% between 1990 and 2008 due to stricter environmental regulations. The researchers analyzed data on over 1,400 products and found that changes in production technologies were the primary driver of these decreases.

SourceUniversity of California - Berkeley·JournalAmerican Economic Review·DateAug 8, 2018

Earth now and 2.5 billion years ago: New study of air helps understanding both

A new study published in Proceedings of the National Academy of Sciences reveals a previously unknown sulfur isotope effect that helps identify sources of air pollution in China. The researchers used sulfur isotopes to analyze coal and air samples, finding a connection between biomass burning and aerosol formation.

SourceUniversity of Science and Technology of China·JournalProceedings of the National Academy of Sciences·DateAug 8, 2018

The health effect of air pollution from traffic

A new study by Lund University suggests that removing exhaust fumes from a smaller European city could prevent 55-93 premature deaths and reduce cases of childhood asthma, bronchitis, and dementia. The study found that even below EU air pollution levels, negative health effects exist.

SourceLund University·JournalEnvironment International·DateJun 4, 2018

The changing chemistry of the Amazonian atmosphere

Researchers from Harvard have quantified the effect of NOx pollution on OH radicals in the Amazon rainforest, finding that daytime peak OH concentrations increase by at least 250% in polluted areas. This study highlights the impact of human activities on atmospheric chemistry, with potential implications for cloud formation and rainfall.

Study: Almost 100 million adults have COPD in China

A new study found that almost 100 million adults in China suffer from chronic obstructive pulmonary disease (COPD), with men having a higher prevalence than women. The study highlights the need for public health strategies to prevent COPD, including smoking cessation programs and stricter control of ambient air pollution.

SourceTulane University·JournalThe Lancet·DateApr 9, 2018

More evidence shows exposure to traffic and outdoor air pollution increases risk of asthma

A new study published in the European Respiratory Journal found that long-term exposure to high levels of road traffic and ozone significantly increases the risk of asthma symptoms and medication use. The study also identified a biological marker, 8-isoprostane, which is exhaled in the breath and linked to tissue damage in the lungs.

SourceEuropean Respiratory Society·JournalEuropean Respiratory Journal·DateApr 5, 2018