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Pollution from tire wear can be 1,000 times worse than a car’s exhaust emissions, Emissions Analytics has found. Vehicle tire wear pollution is completely unregulated, unlike exhaust emissions which have been rapidly reduced by car makers due to the pressure placed on them by European emissions standards. Earlier post.).
Catalytic converters have been used in the US since the 1970s as a way to clean up pollutants from vehicle exhaust. In the catalytic process, rare metals such as platinum, are used in a chemical reaction to convert carbon monoxide and other pollutants to non-toxic carbon dioxide, nitrogen, and water. Pereira-Hernández et al.
billion) on 53 projects targeting air pollution, especially for PM2.5 Exhaust from motor vehicles and boats account for 25% of the PM 2.5 , according to the Shanghai Environmental Protection Bureau said yesterday. Currently, there are over 200,000 high-polluting vehicles on local roads. Shanghai Daily. billion yuan (US$1.63
These results were achieved with a conventional, underfloor-only, single Diesel Exhaust Fluid (DEF) injection aftertreatment system, which makes the whole powertrain system less complex and less expensive, and reduces the risk of non-compliance with emissions regulations. Earlier post.).
Heavily polluted areas have a higher rate of angioplasty procedures to treat blocked arteries than areas with clean air, according to research to be presented at ESC Congress 2019 together with the World Congress of Cardiology. Procedures are even more common in winter, the most polluted time of year. additional PCIs per week.
A team at the University of Stirling in the UK has found new evidence of the link between air pollution and cancer as part of a new occupational health study. This new research indicates the role of traffic-related air pollution in contributing to the increasing incidence of breast cancer in the general population.
Created to address California’s pollution challenges, this technology could be a solution for communities around the globe dealing with the effects of NO x. The State of California plans to enact tighter emissions standards in 2024 and will require that heavy-duty engines produce less pollutants.
Hybrid Electric Turbocharger for Exhaust Energy Recovery and Transient Lag Reduction. NexTech Materials of Lewis Center, Ohio, has developed a new diesel engine exhaust NO x sensing technology that is able to rapidly and selectively measure nitrogen oxides in diesel engine exhaust streams. Lead organization. Description.
-alumina supports along with a small amount of lanthanum oxide can efficiently turn the carbon monoxide in automotive exhaust into carbon dioxide at temperatures as low as 40 ?Celsius, Most of the pollutants from a modern automobile are emitted during the first 30 seconds of starting a car, when the catalyst is still being warmed.
The engine block is derived from a Cursor 11 commercial vehicle engine manufactured by FPT Industrial and has already served us for five years in various research projects. An electrically driven compressor for precise exhaust gas recirculation is also used. This is done via exhaust gas recirculation (EGR). Image: Empa.
In 2020, independent global emissions testing company Emissions Analytics reported that pollution from tire wear can be 1,000 times worse than what comes out of a car’s exhaust. The methodology used for CMTT production was developed by the World Business Council for Sustainable Development’s (WBCSD) Tire Industry Project (TIP).
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.
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 whole industry, pushed hard by legislation, has drastically reduced exhaustpollutants. The modern car is just about unrecognizable against its counterpart of a few decades ago. Not in terms of shape or performance, but emissions.
To improve fuel efficiency, advanced combustion engines are being designed to minimize the amount of waste heat in the exhaust. As a result, future generations of exhaust after-treatment catalysts must perform at temperatures that are 100 °C lower than current catalysts. —Nie et al. —Yong Wang.
Marine engine designer and power system integrator WinGD and engine builder Hyundai Heavy Industries’ Engine Machinery Division (HHI-EMD) will strengthen their collaboration by partnering to develop environmentally sustainable two-stroke engine technology. It is possible to recirculate exhaust gas up to a maximum rate of 50% mass flow.
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. HEI receives balanced funding from government and industry.
A new study by researchers from Washington State University and SLAC National Accelerator Laboratory has found that a catalyst using a single or just a few palladium atoms removed 90% of unburned methane from natural gas engine exhaust at low temperatures. The work is published in the journal Nature Catalysis.
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).
Scaling of industry sales statistics enabled the discrepancy to be attributed to the use of ancillary solvent products such as screenwash and deicer which are not included in internationally applied vehicle emission methodologies. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g.,
million project to find new catalytic materials that work at lower exhaust temperatures, allowing automakers to build vehicles that operate more efficiently while retaining the ability to clean emissions before they leave the tailpipe. Catalytic converters clean vehicle exhaust into nitrogen, water and carbon dioxide.
Risø, the National Laboratory for Sustainable Energy at the Technical University of Denmark (DTU), is developing an electrochemical method for purifying exhaust, especially exhaust gases from diesel engines. Research on the electrochemical reduction of pollutants has been underway since 1975, when Pancharatnam et al.
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.
The engine was also equipped with an electrically driven volumetric pump in the exhaust gas recirculation (EGR) path which gives the freedom to set any desired EGR rate, independently from the pressure ratios across the turbocharger. The common rail pump was externally lubricated by engine oil so that it can handle the low fuel lubricity.
While changes in DNA methylation have been associated with traffic-related air pollution in observational studies, the specific mechanisms have not been explored in a controlled study of asthmatics. Usually when we look at the effects of air pollution, we measure things that are clinically obvious—air flow, blood pressure, heart rhythm.
Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances. —Norbert Heeb.
Volvo Trucks unveiled Vera : an autonomous, electric vehicle that can operate with significantly less exhaust emissions and low noise levels. Growing world population and increasing urbanization are leading to significant challenges to solve environmental issues such as congestion, pollution and noise.
Use of soot-free “Clear” Exhaust Gas Recirculation (EGR) can allow for lower NOx emissions without the competing soot constraint, meeting next-generation emissions standards without added aftertreatment complexity. ClearFlame uses soot-free “Clear” Exhaust Gas Recirculation (EGR) to maintain this ratio under varying load conditions.
The claim that emissions from diesel engine exhausts from road transport are the main cause of lung cancer in humans thus “ needs to be seriously challenged, ” the paper concluded. —“Diesel Engines Exhausts: Myths and Realities”. Thus to improve the quality of air around us more attention must be given to the primary PM emitters.
California’s premier air quality award is named for the late Dr. Arie Haagen-Smit, known as the “father” of air pollution science and control. Haagen-Smit, originally from the Netherlands, was a biochemistry professor at the California Institute of Technology in Pasadena for 16 years before beginning air pollution research in 1948.
For a number of the most important pollutants, levels were substantially lower than required by regulations. They were tested on multiple repeats of these cycles, and measurements of more than 300 regulated and unregulated air pollutants were made in accordance with the highest laboratory standards. Background. g/hp-hr in 2010.
the ICE, and IC engine research have a bright future, in contrast with some widely distributed media reports… The power generation and the vehicle and fuel industries are huge, representing trillions of dollars (US) per year in turnover, with a massive infrastructure. —Reitz et al. g/bhp-h or 15–20?mg/km). —Reitz et al.
company, is introducing a single-engine airplane—the new Turbo 182 Skylane—equipped with the first engine of its kind in the single-engine industry designed to run on Jet A aviation fuel. The fuel technology used in the engine eliminates concerns about carbon monoxide emissions, fuel mixtures, propeller control and exhaust gas.
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.) Earlier post.)
In part it is difficult to identify significant air quality improvements from a specific program—especially one targeted at a small area within a large city—against the backdrop of broader regional pollutant and weather changes. Within the CCZ, the investigators projected a net decline of 1.7 µg/m 3. in PM 10.
This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. Pollution from ships creates lines of clouds that can stretch hundreds of miles. The difference helps explain how much industrialpollution influences clouds.
It, or a scaled-up version, could also provide a solution for the Asian motor vehicle fleet, in which two-stroke engine vehicles constitute a major share—and contribute significantly to air pollution. Everything else—pistons, porting and crankcase, bearings, exhaust, etc.—were Oh and Plante. Click to enlarge.
Additionally, LNG engines are tuned to either emit low nitrogen oxide (NO x ) emissions—at the cost of higher methane emissions in some cases—or to incorporate NO x reduction technologies such as exhaust gas recirculation (EGR) or selective catalytic reduction (SCR). —Pavlenko et al.
FPT Industrial has introduced its newest and most powerful natural engine. The Cursor 13 NG delivers power up to 460 hp @ 1,900 rpm and torque up to 2,000 N·m @ 1,100 rpm—15% more power and 18% more torque than FPT Industrial’s 8.7-liter liter NG engine.
Researchers at the Korea Institute of Machinery and Materials (KIMM) have developed a new hybrid reactor for automotive exhaust aftertreatment that combines plasma and a honeycomb-structured monolith catalyst resulting in an enhanced synergistic effect of low-temperature catalytic activity. Especially in the automobile industry, the plasma?catalyst
The method could be used as an automatic tool, and could act as an early warning system for dangerous pollution levels and potential technical problems, said Assistant Professor Ying Sun from the University’s Computer, Electrical and Mathematical Science and Engineering Division. Khadraoui, S. &
While that report projected vessel activity, it did not explore the environmental impacts of increased shipping in terms of air emissions or the potential climate impacts from increases in short-lived climate pollutants such as black carbon. Click to enlarge. ships diverting from prior routes to Arctic routes. Regulatory background.
The US Environmental Protection Agency (EPA) released the Second Integrated Urban Air Toxics Report to Congress—the final of two reports required under the Clean Air Act (CAA) to inform Congress of progress in reducing public health risks from urban air toxics (also referred to as hazardous air pollutants or HAPs).
These new SIPs demonstrate that, by 2024, pollution will be reduced to the level needed to attain the 1997 8-hour ozone standard of 0.08 In both areas, statewide measures such as the in-use truck and off-road diesel rules, and smog-check improvements will further reduce air pollution. For the SJV to attain 0.08
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