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This research, published in the journal Separation and Purification Technology , shows that ozone can be used to remove not only SO x but also NO x from fossil fuel combustion exhaust streams. In this study, to improve absorption performance of SO 2 and NO 2 , we added ozone in exhaust gas. Osaka et al.
Exposure to ozone, long associated with impaired lung function, is also connected to health changes that can cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults. The findings associated ozone exposure with markers of platelet activation and increased blood pressure.
Exposure to ozone at levels currently deemed safe by the NAAQS clean air standards can have a significant and negative effect on lung function, according to researchers at the University of California, Davis. Edward Schelegle, University of California, Davis. Earlier post.). Specifically, we found that 6.6
In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. the products used for “car care,” such as windshield washer fluid.
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. ozone and sulfate) origin and cardiorespiratory emergency department (ED) visits for 8 specific outcomes in five U.S. —Krall et al.
A new statistical method developed by researchers at KAUST (King Abdullah University of Science and Technology, Saudi Arabia) can detect abnormal ozone levels within large bodies of monitored data. Ozone is the reactive form of oxygen that contains three atoms per molecule (O 3 ) rather than the normal two. Khadraoui, S. &
Emissions from automobile exhaust systems have decreased in recent years due to the introduction of cleaner fuels and new control technologies on internal combustion engines, as well as increases in numbers of hybrid and electric vehicles.
the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al. Background.
Other research has shown that carbonyls directly influence physiological response to diesel exhaust particles and can also contribute to secondary organic aerosol formation. In the Tianjin study, they team fueled a four-cylinder light-duty diesel engine fueled with CFT and DF, identifying 13 individual carbonyl compounds in the exhaust.
About 4 million children worldwide develop asthma each year because of inhaling nitrogen dioxide (NO 2 ) air pollution, according to an open-access study published in The Lancet Planetary Health by researchers at the George Washington University Milken Institute School of Public Health (Milken Institute SPH).
The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. Earlier post.) Advanced Collaborative Emissions Study (ACES).
A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 Credit: ACS, Chin et al. Click to enlarge.
The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). California currently limits the ethanol content of gasoline to 10 percent. The study used two fuels—an E10 and E15.
The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology. We estimate ozone and SOA formation potential.
TPS technology has other applications as well, such as emissions reduction from diesel engines and commercial kitchen exhaust systems, plasma treatment of surfaces for cleaning, as well as ozone generation. —Dan Singleton, CEO and co-founder of Transient Plasma Systems. hp diesel engine.
The volunteers were exposed to ambient air or dilute diesel exhaust with a PM 2.5 and ozone on pulmonary circulation on the same day and over five and ten days. —lead author Dr Jean-Francois Argacha, a cardiologist at the University Hospital (UZ) Brussels, Belgium.
Traffic contributes more to NO x emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. Generally, different combustion and exhaust treatment characteristics result in significantly higher NO x /CO 2 emission ratios for diesel powered cars than for gasoline. —Karl et al.
These projects have brought together a wide variety of companies, the national laboratories, and universities. California’s and, potentially, EPA’s move toward further heavy-duty NO x reductions to meet National Ambient Air Quality Standards for ozone will be critical. These new targets need to be set for the research efforts.
and ozone deaths, associated mortality rates, and population in G20 economies in 2015. and ozone worldwide in 2010 and ~385,000 in 2015, equivalent to 11.7% and ozone premature deaths in 2010 and 11.4% and ozone concentrations from transportation emissions resulted in 7.8 Transportation-attributable PM 2.5 Together, PM 2.5
Freight transportation is a pillar of the US national economy, but while long-haul trucks account for less than 6% of the vehicle miles traveled over US highways, they account for about 40% of the emissions of air polluting particulate matter and about 55% of nitrogen oxides, the precursor to ozone in the atmosphere, the study said.
Scientists around Professor Thomas Münzel, Director of Cardiology I at the Department of Cardiology at the Medical Center Mainz of Johannes Gutenberg University Mainz (JGU), reviewed the mechanisms responsible for vascular damage from air pollution together with scientists from the UK and the US. —Münzel et al.
Jacobson at Stanford University. Particle traps filter out soot particles from exhaust fumes. 1990; Anisimov, 2007] and chemical production of ozone in already-polluted locations [Jacobson, 2008b]. These three gases are all greenhouse gases, and ozone is a surface air pollutant. Dessler et al., Guenther et al.,
1,000 to 21,000) deaths due to changes in ozone concentrations. 900 to 11,000) ozone-related early deaths per year. 300 to 4,000) ozone-related premature mortalities per year. 2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. 53,000 (90% CI: 24,000–95,000) PM 2.5 related premature deaths and ?5,000
80.27, “high ozone season” means the period from June 1 to September 15 of any calendar year and “regulatory control period” means the period from May 1 to September 15 of any calendar year. The result is more efficient combustion, cooler running engines, lower exhaust temperatures, and increased longevity of engine life. 40 CFR § 80.27
The two other recipients are: Dr. Donald Blake, professor of chemistry, University of California Irvine. Smith, professor of global environmental health, University of California Berkeley. The Cummins CTO has consistently taken a proactive environmentally conscious position for the diesel industry throughout his career, ARB said.
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