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A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. Emissions Health Personal Transit' Platt et al.
The study, set in Singapore, suggests that better air quality will bring about climate co-benefits in reducing electricity generation via lower household demand, and thus mitigating carbon emissions. The reasons were two-fold: (i) increased air pollution led to households staying indoors more to mitigate the pollution impact; and (ii) PM 2.5
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. Black carbon—commonly called soot—is a marker for exposure to diesel exhaust which is known to have negative health effects. Jonathan M. 8b01914.
Air pollution varies widely over the course of a day and by location, even within the same city. Now scientists, reporting in the ACS journal Environmental Science & Technology , have used smartphone and sensing technology better to pinpoint where and when pollution is at its worst. Nieuwenhuijsen et al. Nieuwenhuijsen et al.
Consider this fair and legal warning, world’s largest and most polluting oil company - I’m giving you 10 years to pack up and hit the road. You think HE’s working very hard to end our nation’s sick addiction to carbon based fuels that kill people and destroy our civilization? I’m thinking not so much.
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.
A new report from MIT’s Joint Program on the Science and Policy of Global Change suggests that a tax on carbon emissions could help raise the money needed to reduce the US deficit, while improving the economy, lowering other taxes and reducing emissions. In the report— Carbon Tax Revenue and the Budget Deficit: A Win-Win-Win Solution?
finds that private jets are 10 times more carbon-intensive than airliners on average, and 50 times more polluting than trains in terms of CO 2 emitted per passenger-km. According to the report, a four-hour private flight emits as much as the average person does in a year. —Andrew Murphy, Aviation Director at T&E.
The mode of travel you take on your daily work commute can make a big difference in your exposure to air pollution, according to a new study by researchers at the California Air Resources Board (ARB). Boxplot of average PM 2.5 , BC, UFP, and LDSA [lung deposited surface area] concentrations for each commute mode. Click to enlarge.
The collapse in world oil prices in the second half of 2014 will have only a moderate impact on the fast-developing low-carbon transition in the world electricity system, according to research firm Bloomberg New Energy Finance. However, the slump in the Brent crude price per barrel from $112.36 on 30 June to $61.60
California’s latest greenhouse gas data shows that while the state continues to stay below its 2020 target for emissions, there is much more work to do to achieve carbon neutrality by 2045. tons per person to 10.7 tons per person in 2018, a 24% decrease. Source: California Air Resources Board (ARB). Source: CARB GHG Inventory.
The state’s latest Greenhouse Gas Emissions Inventory shows that California emitted 429 million metric tons of climate pollutants in 2016—a drop of 12 million metric tons, or three percent, from 2015. They fell 23% from a peak of 14 metric tons per person (roughly equal to driving 34,000 miles) in 2001 to 10.8
In “Estimated Excess Morbidity and Mortality Caused by Air Pollution above ATS Recommended Standards, 2011-2013,” published online in the August edition of Annals of the American Thoracic Society , researchers report on the annual health benefits of meeting more protective standards recommended by the ATS for O 3 and PM 2.5.
Sightline Institute reports that drivers in the Northwest states of Idaho, Oregon, Washington used more gasoline last year, reversing a decade-long trend of declining personal gas consumption. The report notes that the increase occurred despite BC’s groundbreaking carbon tax, which is designed to reduce greenhouse gas emissions.
Hydrogen can be produced, stored, transported and used in many ways—to power or recharge mobile devices; to power remote locations; to propel vehicles or electric boats; to store intermittent electricity; to increase the production of biofuels; and to reduce the carbon footprint of natural gas in networks.
ambient air quality standards (NAAQS) for criteria pollutants. To date, the EPA has established NAAQS for six pollutants: particulate. matter, sulfur dioxide, ozone, nitrogen dioxide, carbon monoxide, and lead. To date, the EPA has established NAAQS for six pollutants: particulate. Once a SIP is approved.
The report highlights the importance of near-term action to ensure the long-term sustainability of personal mobility. Understanding the future of personal mobility requires an integrated analysis of technology, infrastructure, consumer choice, and government policy. —MITEI Director Robert C. From Insights into Future Mobility.
emissions (kg CO 2 person -1 yr -1 ) for a global sample of countries (2007) with a wide range of per capita incomes. Per capita transport CO 2 emissions are decomposed into the product of two terms: per capita LDV use (horizontal axis, veh-km person -1 yr -1 ) and propulsion carbon intensity (vertical axis, g CO 2 veh-km -1 ).
EcoNav aims to provide travelers with personalized mobile and web tools that allow, help and persuade them to behave in an more ecologically responsible manner with regard to their traveling behavior and decisions. Funding: 7FP, Low-carbon multi-modal mobility and freight transport Future and Emerging Technologies (ICT-2011.6.6).
The Cap-and-Trade program also creates a financial incentive for industries to invest in clean technologies and develop innovative ways to reduce pollution. The program has been up and running since June.
We are not trying to treat the entire hydrocarbon [oil] content in the water—to turn it into carbon dioxide and water—but we are converting it into a form that can be retained by sand filtration, which is a conventional and economical process. The ozone in the bubble attacks certain pollutants because it is a strong oxidant.
Asia-Pacific will exhibit the strongest growth, driven by mounting pollution issues in its many megacities; however, true mass-market uptake will only start happening in the next decade. According to ABI Research, the number of full electric vehicles (EVs) shipping yearly worldwide will increase from 150,000 in 2013 to 2.36
Greenhouse Gases: Tailpipe carbon dioxide emissions in grams per mile and a slider bar comparing the vehicle’s CO 2 emissions to those of all other vehicles. This tool would allow consumers to personalize the information about a vehicle’s performance. Fuel Consumption: Combined city/highway gallons per 100 miles.
For each setting, the authors of the study compared a business-as-usual 2030 projection (without policies for reduction of greenhouse gases) with alternative scenarios: lower-carbon-emission motor vehicles, increased active travel, and a combination of the two.
The average real-world CO 2 emission rate for all new personal vehicles fell by three grams per mile to 357 grams per mile, the lowest level ever measured. Progress on GHG emissions while providing choices for American consumers as sport utility vehicles reached record high market share, while also achieving record high fuel economy.
Overall trends in the inventory also demonstrate that the carbon intensity of California’s economy, the amount of carbonpollution per million dollars of GDP, is declining. Carbon intensity has dropped 23% from the peak in 2001, and declined an average of 1.9% tons per person in 2001 to 12.0 Governor Edmund G.
The largest one-year emissions drop California has ever achieved was at the height of the Great Recession in 2009, when climate pollution fell 6.1%. million metric tons of carbon dioxide-equivalent (MMTCO 2 e) to 425.3 MTCO 2 e per person in 2017—the third-lowest among the 50 states, behind New York and Maryland.
of carbon dioxide (CO 2 ) emissions in the US. Electrification will reduce emissions, with the scale determined by the carbon intensity of the power sector. All three options are likely to lead to emissions reductions relative to ICE vehicles, but the amount will depend critically on the carbon intensity of the electricity supply.
The ITF calculation ignores taxes on fuel (as from society’s point of view these are a transfer rather than a net cost); includes subsidies; and accounts for air pollution impacts. personal or societal expenses), as well as how far the car is driven and how much the battery costs to produce. However, except in some cases. counterparts.
Google Street View cars can be equipped with Aclima’s mobile sensing platform to measure nitrogen dioxide; nitric oxide; ozone; carbon monoxide; carbon dioxide; methane; black carbon; particulate matter; and Volatile Organic Compounds (VOCs). Aclima, Inc., —Dan Costa, Sc.D.,
Those policy options, when combined, could lead to a zero-carbon transportation system by 2045, while also improving equity, health and the economy. Bringing about a zero-carbon transportation future will be challenging, but not impossible, the report states. A second study led by UC Santa Barbara was released simultaneously.
Within the overall trends there are differences between cities with more or less public transit; while personal income also impacts heating and industrial fuel use. Urban pollutant levels in poor countries will remain high, with increased emissions expected as the city populations and economic activities increase. Click to enlarge.
The performance results were similar for all four types of pollution. E-scooter companies tout themselves as having little or no carbon footprint, which is a bold statement. Johnson (2019) “Are E-Scooters Polluters? Joseph Hollingsworth, Brenna Copeland and Jeremiah X.
Over a period of several days, a four-person DLR team first set up the measuring infrastructure required for the tests and then carried out the measurements. Improved carbon footprint with biofuel blends. Biofuels also offer the potential to reduce the emissions of pollutants in the future, he added.
Personal automobiles have given hundreds of millions of people the great luxury of a convenient and comfortable mode of transportation. But there's no escaping that manufacturing these vehicles, driving them for 10 years or more, and then disposing of them creates pollution that has a wide range of negative impacts.
The National Science Foundation (NSF) is investing nearly $80 million in four new Engineering Research Centers (ERCs) to create novel technology platforms in the fields of living cell-based therapies, personalized heart tissue, point-of-care health systems and fuel derived from shale gas.
Where we could manage and then reduce the amount of carbon in our atmosphere? Where everyone had access to preventative health care that was both personalized and less invasive? What about reducing pollution in urban and poor communities? With this information, policy changes can lighten the unfair distribution of harm.
It notes that in the past 60 years, atmospheric carbon dioxide increased at a rate 100 times faster than previous natural changes. “We The video explains the impact of pollutants such as lead and ash, and it adds that “when we work together, we can change the global environment.”
This includes the control and prevention of ship-source pollution covered by the MARPOL treaty, including oil, chemicals carried in bulk, sewage, garbage and emissions from ships, including air pollutants and greenhouse gas emissions. It was attended by some 1,800 delegates (in person and remotely).
and illuminating look at how a simple policy shift could rattle everything from personal budgets to the red-blue map. Further, EVs just solve some of the local and global pollution problems, but still cause congestion, safety, [… ] externalities. In the end, it’s a wonky (this is a compliment!) of this paper.
However, transportation is responsible for the highest amount of air pollution in America. Every day, vehicles emit gaseous pollutants throughout their life cycle, from the manufacturing stage to operation such as particulate matter (PM), volatile organic compounds (VOCs), air toxics, and greenhouse gases (GHGs).
removal, which can be used for personal and building protection. Some other recent developments on using carbon nanotubes and polymer nanofibers are notable examples toward PM 2.5 Removal from the Pollution Sources” Nano Letters doi: 10.1021/acs.nanolett.6b00771. filtration. 6b00771.
Health concerns arise because diesel buses release particulate matter and other harmful pollutants, and these emissions can be disproportionately higher within the cabin of the bus compared to ambient pollution levels. Such concern has been the impetus for several policies requiring the reduction of school bus exhaust pollution.
The interior can be transformed as required to offer a load volume of 160 liters (with four occupants), rising to 855 litres (with just one person in the car). The body is made up of a very light carbon structure, designed to wrap around the passenger compartment. This original set-up maximizes the interior space. kW per motor.
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