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And well be able to conduct long-term studies that track the vital signs of apparently healthy individuals as well as the parameters of their environments. So at present we must calibrate the system anew for each subject. That data could be transformative, leading to better treatments and preventative care.
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).
In addition to keeping anthropogenic CO 2 out of the atmosphere, this technology will lead to benefits and trade-offs for air pollution, according to a new report from the European Environment Agency (EEA). The report shows that while CCS may have an overall positive effect on air pollution, emissions of some pollutants may increase.
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?60%
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. Cellulose fibers are present in virtually all the samples collected (92.5%
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.
The paper, “Market Development for Green Cars”, presents and analyses policies, programs and approaches for the development, market introduction and diffusion of green cars (primarily from the demand (pull) side). It also reviews government policies in a number of OECD countries as well as a selection of non-OECD economies.
Warm season average present-day daily maximum ozone levels (AVGMDA8) at urban (left) and non-urban sites (right). In some parts of Asia, Africa and South America, the researchers identified data gaps which prevented them from characterizing ozone pollution exposure patterns. Source: University of Leicester. Click to enlarge.
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.
Solid CFDNPs in air pollution are characterized by the abundant presence of strongly magnetic, iron-rich particles which condense and/or oxidize upon airborne release, often retaining a rounded or spherical shape as they cool. Erythrocytes were identified transferring ‘hitchhiking’ NPs to activated endothelium. Cross, Imad A.M.
The algae, found worldwide in the natural environment, also make large amounts of carbohydrates, which can be converted into bioethanol to fuel vehicles. The findings could have industrial applications as a cost-effective way to cut greenhouse gas pollution when paired with biofuel production. akashiwo as a biofuel producer.
The program determines the environmental balance of vehicles with different size classes and powertrains, and presents the results in comparative graphics. Eutrophication of non-marine aquatic environments [kg N-eq.]. Eutrophication of non-marine aquatic environments [kg P-eq.]. Deterioration of the ozone layer [kg CFC-11-eq.].
According to Agah, a renowned researcher in chip-scale gas chromatography and Office of the Vice President for Research and Innovation Faculty Fellow, the development of effective strategies for reducing occupational exposure to pollutants requires accurate, time-resolved measurement of exposure.
The European Commission presented its proposal for Euro 7 standards to reduce air pollution from new motor vehicles sold in the EU. However, in 2050, more than 20% of cars and vans and more than half of the heavier vehicles are expected to continue to emit pollutants from the tailpipe.
NEVS has presented its new mobility ecosystem: PONS—the first generation of autonomous vehicles with a connected user interface. NEVS developed PONS because cities all over the world, clogged by pollution and traffic, want to do whatever they can to reduce the use of cars. The self-driving vehicle Sango. There are 1.3
Urban regions account for an ever increasing fraction of Earth’s population, and are consequently an ever increasing source of air pollutants. These pollutants include anthropogenic aerosols, which have important climate and health implications.
A paper on the study is published in the journal Atmospheric Environment. Evans (2017) “Exposure to ultrafine particles and black carbon in diesel-powered commuter trains,” Atmospheric Environment doi: 10.1016/j.atmosenv.2017.02.015. Cheol-Heon Jeong, Alison Traub, Greg J. 2017.02.015.
Air pollution emitted from sources such as traffic, industry and households is still above internationally agreed limits in 12 European countries, according to newly published data. These pollutants are harmful to both people and the environment, causing respiratory illnesses, acidifying soil and surface water, and damaging vegetation.
A study by researchers from the US, Mexico and Canada has found that children’s urban air pollution exposures result in systemic and brain inflammation and the early hallmarks of Alzheimer’s disease (AD). The study found that clinically healthy children who live in a pollutedenvironment and who also carry a gene—the apolipoprotein ?
These new compounds were not previously known to exist, and raise additional concerns about the health impacts of heavily-polluted urban air or dietary exposure. It has not yet been determined in what level the new compounds might be present, and no health standards now exist for them. Staci Simonich.
A study by researchers in Israel and the US has found that single (“sub-clinical”) exposure to extracts from particulate material (PM) collected in a near roadway environment can induce a transient oxidative stress and inflammation in mice’ lungs. The paper appears in the ACS journal Environmental Science & Technology.
Powered by two MTU 8V4000M55RN natural gas engines from Rolls-Royce and designed for use on inland waterways, the push boat is more cost-effective to operate, and produces less pollutants and climate-unfriendly exhaust gases than vessels with conventional propulsion systems.
At last week’s Ocean Innovation 2009 conference in Victoria, British Columbia, Craig Carter, Director of Marketing and Customer Service at Thordon Bearings detailed the company’s progress in the retrofitting of large ocean-going vessels with seawater-lubricated propeller shaft bearings to reduce waterborne pollution.
2015) formulated by the National Development and Reform Commission of China (NDRC), coal consumption will be limited to 3900 million metric tons (MMT) by 2015, which will present a challenge given the tremendous increase in coal use within the last 5 years (2300 MMT in 2006 and 3200 MMT in 2010).
A new study, part of the Atlanta Commuter Exposures (ACE) Study, has assessed on-roadway in-cabin particulate pollution (PM 2.5 ) collected from scripted rush hour commutes on highways and on non-highway side streets. Most traffic pollution sensors are placed on the ground alongside the road and take continuous samples for a 24-hour period.
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.
The research, published in the Science of the Total Environment journal, presents the first real-world data linking EVs to reductions in air pollution and respiratory issues. This study marks a significant step in understanding the impact of electric cars on public health and the environment.
The model that will be further developed as part of an NSF-funded project to track how chemicals get to remote Arctic environments. Persistent organic pollutants are chemicals of substantial international concern. The presence of these pollutants in the Arctic is important for several reasons.
These acidic compounds persist in the environment, taking up to 10 years to break down. NAs are resistant to breakdown and persist as pollutants in the water used to extract the oils and tar. The most toxic of these are mixtures of predominantly cycloaliphatic or alicyclic carboxylic acids known as naphthenic acids (NAs).
The team showed that the effect of aerosols on the climate since industrialisation depends strongly on what the atmosphere was like before pollution, when aerosols were produced only from natural emissions. The finding could further complicate attempts to model climate change. —Professor Carslaw. Resources. Carslaw, L. Reddington, K.
positive or negative—and magnitude of net climate forcing from BC emissions), currently available scientific and technical information provides a strong foundation for making mitigation decisions to achieve lasting benefits for public health, the environment, and climate. Earlier post.). There is inconsistency among reported.
We were quite surprised to find that polycarbonate plastic biodegrades in the environment. This finding challenges the wide public belief that hard plastics remain unchanged in the environment for decades or centuries. Biodegradation, of course, releases BPA to the environment. Katsuhiko Saido. parts per million (ppm) to 50 ppm.
The researchers attributed the high yield of pyrolysis oil to the unique heating mode and chemical environmentpresent during microwave-heated pyrolysis. They presented their results during the 241 st national meeting of the American Chemical Society in Anaheim.
Based on analysis of long-term trends, a new European Environment Agency (EEA) report calls for a clear vision defining Europe’s transport system by 2050 and consistent policies to achieve it. Unlike some sectors, transport’s impact on the environment continues to be closely linked to economic growth.
Every air pollutant is more than 90% its limit. Do no harm’ means taking a step back from an intervention to look at the broader context and mitigate potential negative effects on the social fabric, the economy and the environment. The Tesla is, of course, zero on all these measures; upstream emissions were ignored in this test.
Two Colorado State University (CSU) researchers have received a $325,000 National Science Foundation grant to determine the pollutant formation chemistry of algae-derived biofuels, which have potential to be high-yield, efficiently produced, renewable fuels. Are there going to be any consequences that we may not have thought about?
Among the many climate-related vulnerabilities that can impact its mission, the US Environmental Protection Agency (EPA) cites a likely increase in tropospheric ozone pollution as potentially making it more difficult to attain National Ambient Air Quality Standards ( NAAQS ) in many areas with existing ozone problems.
John Heinz chair in Chemistry for the Environment and Directs the Center for Green Chemistry and Green Engineering. The program will also seek to understand how future changes in the energy scheme might impact efforts to protect human health and the environment. All of EPA’s actions and decisions are based on science and research.
Chemists at United Environment and Energy LLC have developed an energy-efficient, high throughput continuous flow fixed-bed reactor technology for cost-effective algae oil biodiesel production. A related benefit from the use of the solid catalyst is that there is no wastewater produced to cause pollution.
Effective January 2010, Brazilian diesel fuel vehicles will be required to run on a 5% biodiesel blend, up from 4% at present. Local agencies now have 12 months to present Vehicle Pollution Control Plans targeting specific fleet groups, defining frequency and priority areas for inspection.
Oil spill clean-up is an expensive and complicated process that often harms marine life and further damages the environment. The nanostructure coating can be tailored to selectively adsorb (and later desorb) these pollutants. Vikas Nandwana, a senior research associate in Dravid’s laboratory, is the paper’s first author.
The United Nations Environment Programme (UNEP) estimates that 1,960 tonnes of mercury arising from human activities are currently emitted annually into the atmosphere, generated mainly by artisanal and small-scale gold mining (ASGM)—the largest single anthropogenic source globally—and coal- or lignite-fired power plants.
These six present a combined poten al of up to 22 GtCO 2 e per annum. The report also covers an assessment of the potential contribution from reductions in short-lived climate pollutants (SLCPs). The 1 Gigaton Coalition is supported by UN Environment and the Norwegian Government.
Electricity generation and distribution in the US represents nearly 40% of US CO 2 emissions, as well as large shares of the other pollutants. discuss the implications of this “ considerable divergence ” and list recommendations for a standardized approach to accounting for air pollution emissions in life cycle assessment and policy analyses.
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