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Urban planners should plant hedges—or a combination of trees with hedges—rather than just relying on roadside trees if they are most effectively to reduce pollution exposure from cars in near-road environments, according to a new study from the University of Surrey.
New research by George Mason University found that exposure to certain air pollutants is linked to increased emergency department (ED) visits for respiratory and cardiovascular diseases. The study is published in the journal Environment International. nitrogen oxides) and secondary (e.g. —Krall et al.
A new study has found that pollutant particles carried by these flows prefer to accumulate in specific regions of the urban environment and even form coherent structures, rather than scattering randomly. In previous studies, the existence of these patterns in fluid flows was only verified with idealized “theoretical” flows.
A new study by researchers from Stockholm University concludes that automobile tires may be a potential previously unknown source of carcinogenic dibenzopyrenes—a type of high molecular weight polycyclic aromatic hydrocarbon (PAH)—to the environment. Automobile tire rubber in general consists of approximately 40?
A study by three French institutes—Ifremer, the University of Bordeaux and the IRD (a public research institution)—has found that the surface water of the Atlantic Ocean is twice as polluted by cellulose fibers as it is by microplastics. —Catherine Dreanno.
A new study led by University of Chicago researchers finds an association between exposure to environmental pollution and an increase in the prevalence of neuropsychiatric disorders. For the Danish cohort, the team studiedstudy 4 psychiatric disorders: bipolar disorder, schizophrenia, personality disorder, and depression.
A study by researchers led by a team from the Air Health Science Division of Health Canada (the Federal department responsible for helping Canadians maintain and improve their health) finds that commuters may be exposed to increased levels of traffic-related air pollution owing to close proximity to traffic-emissions. In-vehicle PM 2.5
People continuously exposed to air pollution are at increased risk of dementia, especially if they also suffer from cardiovascular diseases, according to a study at Karolinska Institutet in Sweden published in the journal JAMA Neurology. The annual average level of particulate matter 2.5 —Giulia Grande. Giulia Grande, Petter L.S.
A study by Mark Z. Jacobson, professor of civil and environmental engineering at Stanford University, suggests that carbon capture technologies are inefficient and increase air pollution. However, this research finds that it reduces only a small fraction of carbon emissions, and it usually increases air pollution.
Scientists at the USC Wrigley Institute for Environmental Studies on Santa Catalina Island, working with private industry, report that a new aquaculture technique on the California coast significantly increases kelp growth, yielding four times more biomass than natural processes. The researchers used a depth-cycling approach—i.e.,
The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.
Authors of the new study include Prof. Increases in manufacturing, building of power plants and other industrial developments, together with urbanization, are often accompanied with increases in pollution whose adverse impacts on weather and climate, as revealed in this study, can undercut economic gains, the researchers stressed.
A study led by environmental health scientists at Columbia University Mailman School of Public Health examined the release of vapors from gasoline station vent pipes, and found benzene emissions were 10 times higher than estimates used in setback regulations that determine how close schools, playgrounds, and parks can be to the facilities.
Researchers from Surrey’s Global Center for Clean Air Research (GCARE) in the UK have investigated the amount of harmful air pollutants babies potentially inhale while out in a stroller with their parents or caretakers. An open-access paper on their work is published in Environment International. Environment International.
A two-year study led by researchers at the University of Toronto has found large trucks to be the greatest contributors to black carbon emissions close to major roadways. The study is published in the ACS journal Environmental Science & Technology. Jonathan M. Wang, Cheol-Heon Jeong, Nathan Hilker, Kerolyn K. Shairsingh, Robert M.
By disrupting normal societal activities such as driving, COVID-19 lockdowns afforded a unique opportunity to study their impacts on the environment. On a national or global scale, most NH 3 pollution comes from agricultural sources, such as livestock manure. Bowman, Tzung-May Fu, and Muhammad O. 1c00730.
The study will appear next month in the peer-reviewed journal Climatic Change Letters. The study underscores the complex and sometimes conflicting ways in which fossil fuel burning affects Earth’s climate. —Tom Wigley. However, the effects of natural gas on climate change have been difficult to calculate. degrees F (about 0.1
A “well-to-wheel” life cycle assessment (LCA) by a team from synthetic fuels producer Greyrock ( earlier post ), and the National Renewable Energy Laboratory (NREL) has determined the potential reduction of greenhouse gases and criteria pollutant emissions from the use of synthetic fuels directly converted from flare gas. billion liters (18.8
An in-house study by environmental NGO Transport & Environment (T&E) has found that the luxury cruise brands owned by Carnival Corporation & PLC emitted in 2017 in European seas alone 10 times more SO x than all of Europe’s 260+ million passenger vehicles. million passenger vehicles in a year.
According to an independent study by the International Institute for Applied Systems Analysis (IIASA) and the Council on Energy, Environment, and Water (CEEW), more than 674 million Indian citizens are likely to breathe air with high concentrations of PM 2.5 The program focuses on 102 polluted Indian cities and aims to reduce PM 2.5
A new study finds that ethanol blends reduce particulate matter (PM) coming out of the tailpipe, which in turn reduces overall toxic emissions. The study was conducted by the University of California Riverside and the University of Wisconsin, Madison and commissioned by the Urban Air Initiative. 2019.05.279.
Members of the European Parliament’s Environment, Public Health and Food Safety Committee approved a draft law setting out rules for achieving a 147 g CO 2 /km (235 g/mile) target for new light commercial vehicles by 2020, down from 203 g/km (325 g/mile) today—i.e., The vote was 53 to 4 with 1 abstention. vans in 2014, falling to 1.3
The $461,000-project, titled “Heterogeneous Aging Mechanisms of Combustion and Biomass Burning Emissions,” will focus on how gases, such as ozone, react with pollutants emitted from power plants and forest fires. Guzman and his students will study how these pollutants are transformed on surfaces by oxidizing atmospheric gases.
Exposure to air pollution, even over the course of just a few weeks, can impede mental performance, according to a new study led by researchers at Columbia University Mailman School of Public Health. The study is among the first to explore short-term air pollution exposures and the use of NSAIDs to mitigate their effects.
When airborne particles (green) form before PAHs adhere, both the pollutants and particles dissipate quickly, as shown in the top row. But when the particles form in the presence of pollutants, which is what likely happens in nature, the longer-lasting particles enable the long-range transport of the pollutants (bottom).
Among the major pollutants, nitrogen oxide (NO x ) accumulation can cause severe respiratory diseases and imbalance in the Earth’s nitrogen cycle. Studies show that for hydroxylamine formation to dominate over N 2 O formation, very acidic electrolytes with a pH less than 0 are required.
Babies in strollers can be exposed to up to ~60% higher average concentrations of pollution than their parents, causing potential damage to their frontal lobe and impacting on their cognitive abilities and brain development, according to a study by researchers at the University of Surrey (UK).
pollution in the state. is especially burdensome in California and accounts for the greatest percentage of health impacts attributable to air pollution. The open-access study, which focused on the four major components of PM 2.5 species, was recently published in the journal Atmospheric Environment. to predict PM 2.5
Metal particles from the abrasion of brake pads (brake abrasion dust, BAD) may cause inflammation and reduce the ability of immune cells to kill bacteria, similarly to particles derived from diesel exhaust particles (DEP), according to a new study led by researchers at King’s College London. traffic pollution. Selley et al.
Aggregated damage costs by pollutant. Air pollution from the 10,000 largest polluting facilities in Europe cost citizens between €102–169 billion (US$135–224 billion) in 2009, according to a new report from the European Environment Agency (EEA) which analyzed the costs of harm to health and the environment caused by air pollution.
The variation in performance among the five ICs tested in this study should raise caution about IC assumptions and terminology, particularly as some so-called “improved” stoves in the natural draft category may at times perform even worse than a traditional mud cookstove. —Kar et al. Abhishek Kar, Ibrahim H. Rehman, Jennifer Burney, S.
Cornell engineers have developed machine learning models to simplify and reinforce models to calculate the fine particulate matter (PM 2.5 ) contained in urban air pollution. Previous methods to gauge air pollution were cumbersome and reliant on extraordinary amounts of data points. MRE for the single hidden layer model, the 63.2%
In-vehicle-to-outside (I/O) ratios for four pollutants under different ventilation settings. Researchers at USC have found that using recirculation rather than outside air ventilation in a car can effectively reduce in-cabin exposure to on-road particle pollution. Credit: ACS, Hudda and Fruin (2013). Click to enlarge.
In an open access paper in the Journal of Wind Engineering and Industrial Aerodynamics , researchers at the University of Surrey (UK) have investigated the effect of group riding on cyclists’ exposure to vehicle pollutants. —Schmeer et al. With more wind, riding towards the back of the group can be a good strategy to minimize exposure.
US Congressman Scott Peters (CA-52) introduced the Super Pollutant Emissions Reduction Act (SUPER Act) of 2013, legislation aimed at combating short-lived climate pollutants, which are only somewhat addressed by disparate government programs. C in projected cumulative warming by 2050 and 1.1 °C
Traffic is a major source of harmful pollutants; daily peak exposures tend to occur near roadways or while traveling—or being stuck—on them. Their paper is published in Atmospheric Environment. That gave them rare, real-world look at pollutant exposure. Earlier post.). the least.
A study by researchers from the University of Edinburgh and the National Institute for Public Health and the Environment in the Netherlands has found that nanoparticles, such as those found in air pollution, can travel into the blood and accumulate in diseased blood vessels.
In a paper published in the journal Atmospheric Environment , they report on the findings from a suite of scenarios designed to quantify the effect of both the magnitude of EV market penetration and the source of electricity generation used to power them. coal, oil, natural gas, and biomass). —Schnell et al. —Jordan Schnell.
Among pollutants that are less than 2.5 microns in diameter (PM2.5 ), airborne sulfate is one of the most common components of hazy air pollution formed atmospherically via the oxidation of sulfur dioxide (SO 2 ). Dense, hazy fog episodes characterized by relatively high humidity, low visibility and extremely high PM 2.5 —Prof.
Boxes represent pollution reading locations during that window. Computer scientists at the University of California, San Diego have built a portable pollution sensors that transmit transmit their air quality readings to smart phones, allowing users to monitor air quality in real time. Nikzad et al. Click to enlarge. Click to enlarge.
Small particles from tires inhibit the growth and cause adverse behavioral changes in organisms found in freshwater and coastal estuary ecosystems, according to two new Oregon State University studies. The researchers cite studies that show during the lifetime of an automobile tire. Credit: John Dickens.
CO 2 emissions from private jets in Europe increased by nearly a third (31%) between 2005 and 2019, rising faster than commercial aviation emissions, according to a new report from environmental campaign group Transport & Environment (T&E). The study highlights the continued use of private jets last year despite the pandemic.
A 2016 study by Professor Maher and colleagues found abundant magnetite nanoparticles in brain tissue; magnetite is toxic and has been implicated in the production of reactive oxygen species (free radicals) in the human brain, which are associated with neurodegenerative diseases including Alzheimer’s disease. Cross, Imad A.M. 2019.108567.
The US Tire Manufacturers Association (USTMA) will produce cryogenically milled tire tread (CMTT) and provide samples to researchers to advance scientific study on tire and road wear particles (TRWP). We know that researchers face limitations in trying to create representative tire and road wear particles for accurate scientific study.
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