(Press-News.org) No exhaust means no emissions, right?
Not quite.
It is commonly known that while electric vehicles do not produce tailpipe greenhouse gas emissions while driving, they do create debris from tire and brake abrasion. However, the degree to which they do and how that compares to internal combustion engine vehicles was largely unknown until the Virginia Tech Transportation Institute's Hesham Rakha investigated it.
In an article published in Transportation Research Part D: Transport and Environment, Rakha, alongside institute research associate Mohamed Farag and Associate Professor of civil and environmental engineering Hosein Foroutan, reported findings that indicate electric vehicles generally produce less non-exhaust emissions.
“The model that we developed proved that battery electric vehicles, in the right conditions, have more environmental advantages,” said Rakha, director of the institute’s Center of Sustainable Mobility. “The hope is for this tool to inform strategies that could reduce overall vehicular pollution and promote sustainable transportation solutions.”
Rakha said that because electric vehicles are generally 40 percent heavier than gasoline-powered vehicles, the first step of this project was to develop models that account for vehicle speed and weight to calculate brake and tire particulate matter emissions. Using his INTEGRATION software, he compared a combined 24 electric vehicles, gasoline-powered vehicles, and hybrid vehicles that ranged in weight and size. The selected vehicles were then put to the test in three EPA drive cycles that represented city driving, highway driving, and a high acceleration aggressive driving style.
The models showed that with more traffic, electric vehicles produce less non-exhaust emissions than their gasoline-powered counterparts. The trend, however, is reversed when less traffic is on the road. Electric vehicles will produce more non-exhaust emissions compared to gasoline vehicles when there is less traffic. Overall, the study suggests that if at least 15 percent of driving occurs in city conditions, electric vehicles produce less non-exhaust particulate matter emissions than gasoline-powered vehicles.
The research also highlighted braking as one clear way electric vehicles are more environmentally friendly than their counterparts. Through regenerative braking, which charges the vehicle’s battery from the friction created by braking, brake abrasion emissions are reduced because an electric motor is used to slow the vehicle instead of traditional brake pads.
Rakha believes that the introduction of these models into simulation programs will help exponentially when analyzing vehicle emissions. Programs such as the INTEGRATION software provide an opportunity for policymakers and transportation planners to better understand and manage vehicle emissions at a city level.
This research was also accepted and presented at the Transportation Research Board Annual Meeting in January.
Original Study: doi.org/10.1016/j.trd.2025.104622
END
Researchers are driving the charge of zero emissions
The research reported findings that indicate electric vehicles generally produce less non-exhaust emissions
2025-02-10
ELSE PRESS RELEASES FROM THIS DATE:
USC-led study finds potential new drug target for Alzheimer’s disease
2025-02-10
A team of researchers from the Keck School of Medicine of USC has unlocked the details of a cellular pathway that triggers cellular inflammation and aging and is linked to Alzheimer’s disease, particularly among those who carry the APOE4 genetic risk. They have also found a way to return cells to a healthy state, revealing a new potential approach to treatment. The study, the culmination of a decade of research on a protein known as ATP-binding cassette transporter A1 (ABCA1), was just published in the journal Molecular Neurodegeneration.
Past research ...
Why you need to subscribe to NFCR’s new podcast, “All Things Cancer”
2025-02-10
Kick-Off Episode with Dr. Margaret Foti, CEO of AACR, Premieres February 11
Bethesda, MD – February 7, 2025 – The National Foundation for Cancer Research (NFCR) is excited to announce the official launch of its groundbreaking new podcast, All Things Cancer, premiering on February 11, 2025. Hosted by NFCR CEO, Sujuan Ba, Ph.D., this compelling series will bring together the entire ecosystem of cancer research—including leading scientists, oncologists, doctors, patient advocates, caregivers, biotech innovators, and survivors—for powerful discussions on the breakthroughs shaping the future of cancer research, treatment, and ...
Research pinpoints weakness in lung cancer’s defenses
2025-02-10
At a glance:
Researchers discovered the importance of an enzyme that promotes growth of certain lung cancers.
The enzyme, GUK1, supports metabolism in cancer cells to help tumors grow.
In the future, GUK1 could become a possible target for lung cancer therapies.
Lung cancer is a particularly challenging form of cancer. It often strikes unexpectedly and aggressively with little warning, and it can shapeshift in unpredictable ways to evade treatment.
While researchers have gleaned important insights into the ...
New study highlights healthcare utilization shifts among Long COVID patients in Colorado after diagnosis
2025-02-10
AURORA, Colo. (Feb 10, 2025) – A new study analyzing Long COVID healthcare utilization in Colorado reveals a significant shift from acute care to outpatient services following diagnosis, shedding light on evolving treatment patterns and the broader healthcare burden posed by the condition.
The study, published today in BMC Public Health, was conducted using Colorado’s comprehensive All-Payer Claims Database and provides one of the most detailed population-level insights into Long COVID patients to date. Researchers examined utilization patterns of individuals diagnosed with Long COVID between October 2021 and August 2022, tracking them for one-year post-diagnosis.
“The ...
Majority of kids who die in mass shootings killed by family members, Stanford Medicine-led study shows
2025-02-10
When U.S. children die in mass shootings, most of the time the perpetrator is a family member, new Stanford Medicine-led research shows.
The findings, which will be published online Feb. 10 in JAMA Pediatrics, come from the first analysis of the relationships between mass shooting perpetrators and pediatric victims, those who are younger than 18 years old.
“It was surprising that domestic violence was so pervasive, that 59% of kids who died in mass shootings were at the hands of a family member,” said ...
How perception may shape health safety-related assessments
2025-02-10
Perceiving whether another person is a personal health risk requires quickly assessing their trustworthiness. With limited characteristics available, implicit assumptions often influence risk perception. Research in this area has pointed to brain regions that may be involved in perceiving others as untrustworthy or as carriers of sexually transmitted diseases (STDs). However, the relationship between brain activity, perceived trustworthiness of others, and perceived likelihood of acquiring an STD was unclear prior to a recent study published in eNeuro. In the study led by Daniela Mier at ...
Potential new strategy for relieving anxiety
2025-02-10
Understanding the neural circuits that drive anxiety may help researchers discover circuit-specific targets and therefore increase the precision of treatment strategies. Previous studies have separately suggested that increased serotonin levels and the cerebellum may play roles in anxiety. To explore the relationship between these ideas, Pei Chin, from the University of Pennsylvania, and George Augustine, from Temasek Life Sciences Laboratory, probed whether serotonin in the cerebellum causes anxiety behavior in mice. Contrary to previous ...
Scientists develop corrosion-induced electrodes for biomass upgrading
2025-02-10
A research team led by Prof. ZHANG Jian from the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences (CAS) has utilized metal corrosion to prepare high-performance electrodes, enabling efficient and cost-effective upgrading of bio-based 5-hydroxymethylfurfural (HMF). This study was published in Chem Catalysis.
Corrosion is a common phenomenon that can lead to material failure and economic losses. However, researchers are exploring its potential for beneficial applications, particularly in biomass upgrading.
Biomass is among the most abundant renewable resources on earth. Through catalytic conversion, ...
Contemporary hormonal contraception and risk of venous thromboembolism
2025-02-10
About The Study: This study showed venous thromboembolism (VTE) risk variation across hormonal contraceptives with highest rates for combined pills, especially those containing third-generation progestins, and no significant difference in risk for intrauterine devices (IUDs) relative to no use. For patches and implants, the increased VTE risk was uncertain due to limited data. Variation in VTE risk across products underscores the importance of personalized contraceptive counseling.
Corresponding Author: To contact the corresponding author, Harman Gailan Hassan Yonis, MD, email harman@live.dk.
To ...
Victim-shooter relationships in mass shootings involving child victims
2025-02-10
About The Study: The findings of this study indicate that from 2009 through 2020, a child was most likely to be killed in a mass shooting by a parent or family member, rather than a stranger or a peer. While school shootings dominate media coverage, this study suggests that domestic violence plays a larger role in child mass shootings.
Corresponding Author: To contact the corresponding author, Stephanie Chao, MD, email sdchao1@stanford.edu.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamapediatrics.2024.6609)
Editor’s ...
LAST 30 PRESS RELEASES:
Treating heart failure patients with anti-obesity medication reduces greenhouse gas emissions and improves clinical outcomes
Cardiac arrest in space: New research shows that automatic chest compressions are more effective for CPR when both rescuer and patient are floating in microgravity
Older age and low fitness levels are associated with heartbeat abnormalities that increase future cardiovascular risk
‘Built for cutting flesh, not resisting acidity’: sharks may be losing deadly teeth to ocean acidification
Study reveals beneficial effects of diet and exercise on alcohol-related adverse liver health
Making the weight in four years
AI review unveils new strategies for fixing missing traffic data in smart cities
Scientists discovered hopfion crystals – which are flying in spacetime
For bees, diet isn’t one-size-fits-all
How a malaria-fighting breakthrough provides lasting protection
Cognitive Behavioural therapy can alter brain structure and boost grey matter volume, study shows
Largest ever study into cannabis use investigates risk of paranoia and poor mental health in the general population
Most US neurologists prescribing MS drugs have received pharma industry cash
A growing baby planet photographed for first time in a ring of darkness
Brain’s immune cells key to wiring the adolescent brain
KAIST develops AI that automatically detects defects in smart factory manufacturing processes even when conditions change
Research alert: Alcohol opens the floodgates for bad bacteria
American Gastroenterological Association, Latica partner to assess living guidelines using real-world evidence
University of Tennessee collaborates on NSF grants to improve outcomes through AI
New technique at HonorHealth Research Institute uses ultrasound to activate drugs targeting pancreatic cancer
Companies 'dumbed down' cryptocurrency disclosures in good markets prior to reporting standardization, Rotman research finds
MSU study: What defines a life well-lived? Obituaries may have the answers.
Wind isn’t the only threat: USF-led scientists urge shift to more informed hurricane scale
Study: Fossils reveal reliable record of marine ecosystem functioning
New Simon Fraser University–University of Exeter partnership fast-tracks path to become a lawyer
Busy bees can build the right hive from tricky foundations
Deep sea worm fights ‘poison with poison’ to survive high arsenic and sulfide levels
New monthly pill shows potential as pre-exposure prophylaxis HIV drug candidate
Estalishing power through divine portrayal and depictions of violence
Planetary scientist decodes clues in Bennu’s surface composition to make sense of far-flung asteroids
[Press-News.org] Researchers are driving the charge of zero emissionsThe research reported findings that indicate electric vehicles generally produce less non-exhaust emissions