Mon.Feb 10, 2020

New passenger car registrations down 7.3% in Germany in January, but BEVs up 61.2% to account for 3% of all new reg

Green Car Congress

In Germany (the largest car market in Europe), the 2020 registration year started with 246,300 newly registered passenger cars—7.3% less than in January 2019, according to figures from the German KBA (Kraftfahrt-Bundesamt).

2020 83

2019 Audi E-Tron eligible for up to a $13,000 discount—if you first go to Costco

Green Car Reports

If you love the Audi E-Tron electric SUV but the premium price has kept you from going for one so far, a deal good through the end of March might just provide the new numbers to make it happen.

2020 80

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Researchers virtually ‘unwind’ lithium battery; strategies for improving design of cylindrical cells

Green Car Congress

An international team led by researchers at UCL has revealed new insights into the workings of a commercial Li/MnO 2 primary battery by virtually “unrolling” its coil of electrode layers using an algorithm designed for papyrus scrolls.

2020 83

Hyundai takes a big-picture look at the hydrogen economy

Green Car Reports

Hyundai is one of a handful of automakers to remain committed to hydrogen fuel-cell cars. But the automaker is also looking beyond cars, anticipating an entire “hydrogen economy” where fuel cells have a variety of other uses.

2020 73

Study finds longer commutes associated with increased human exposure to TDCIPP, a known carcinogen

Green Car Congress

Researchers at the University of California, Riverside, with colleagues from Duke University, report that longer commutes are associated with increased human exposure to TDCIPP (tris(1,3-dichloro-2-propyl) phosphate)—a chemical flame retardant that is a known carcinogen and that was phased out of furniture use because it required a Proposition 65 warning label in California. The paper is published in the journal Environment International. Organophosphate esters (OPEs) are a class of semi-volatile organic compounds (SVOCs) used as flame retardants, plasticizers, and anti-foaming agents. Due to stringent flammability standards in vehicles and the ability of OPEs to migrate out of end-use products, elevated concentrations of OPEs have been found in car dust samples around the world. As many residents of Southern California spend a significant amount of time in their vehicles, there is potential for increased exposure to OPEs associated with longer commute times. As approximately 70% of the University of California, Riverside’s undergraduate population commutes, the objective of this study was to use silicone wristbands to monitor personal exposure to OPEs and determine if exposure was associated with commute time in a subset of these students. Participants were asked to wear wristbands for five continuous days and complete daily surveys about the amount of time spent commuting. Data were then used to calculate a participant-specific total commute score. —Reddam et al. Some scientists assumed that humans stopped being exposed to TDCIPP after it was placed on California’s Proposition 65 list in 2013. However, it is still widely used in automobile seat foam. The study shows that not only is your car a source of TDCIPP exposure, but that less than a week of commuting results in elevated exposure to it. David Volz, associate professor of environmental toxicology at UCR, said the results were unexpected. I went into this rather skeptical because I didn’t think we’d pick up a significant concentration in that short a time frame, let alone pick up an association with commute time. We did both, which was really surprising. —David Volz. Over the past decade, Volz has studied how various chemicals affect the trajectory of early development. Using zebrafish and human cells as models, the Volz laboratory has been studying the toxicity of a newer class of flame retardants called organophosphate esters since 2011. Little is known about the toxicity of these organophosphate esters—TDCIPP is one of them—but they’ve replaced older flame-retardant chemicals that lasted longer in the environment and took longer to metabolize. Using zebrafish as a model, Volz found TDCIPP prevents an embryo from developing normally. Other studies have reported a strong association between TDCIPP and infertility among women undergoing fertility treatments. Knowing its use is still widespread in cars, Volz wondered whether a person’s exposure is elevated based on their commute. UC Riverside undergraduates made for excellent study subjects, as a majority of them have a daily commute. The research team was funded by the National Institutes of Health as well as the USDA National Institute of Food and Agriculture. Participants included around 90 students, each of whom had commute times that varied from less than 15 minutes to more than two hours round trip. All of them were given silicone wristbands to wear continuously for five days. The molecular structure of silicone makes it ideal for capturing airborne contaminants. Since TDCIPP isn’t chemically bound to the foam, Aalekyha Reddam, a graduate student in the Volz laboratory, said it gets forced out over time and ends up in dust that gets inhaled. Multiple organophosphate esters were tested, but TDCIPP was the only one that showed a strong positive association with commute time. Components of Firemaster 550 (triphenyl phosphate, or TPHP, and isopropylated triaryl phosphate isomers) and Firemaster 600 (TPHP and tert-butylated triaryl phosphate isomers)—both widely used commercial flame retardant formulations—were strongly correlated with other OPEs detected within participant wristbands. Moreover, the concentration of tris(1,3-dichloro-2-propyl) phosphate (TDCIPP) was significantly correlated with the concentration of several Firemaster 500 components and tris(2-chloroisopropyl) phosphate (TCIPP). Finally, out of all OPEs measured, TDCIPP was significantly and positively correlated with total commute score, indicating that longer commutes are associated with increased human exposure to TDCIPP. Overall, our findings raise concerns about the potential for chronic TDCIPP exposure within vehicles and other forms of transportation, particularly within densely populated and traffic-congested areas such as Southern California. —Reddam et al. While Volz and his team did not collect urine samples to verify that the chemical migrated into the bodies of the participants, they believe that’s what happened. Going forward, the research team would like to repeat the study with a larger group of people whose ages are more varied. They would also like to study ways to protect commuters from this and other toxic compounds. Until more specific reduction methods can be identified, the team encourages frequently dusting the inside of vehicles, and following US Environmental Protection Agency guidelines for reducing exposure to contaminants. Until safer alternatives are identified, more research is needed to fully understand the effects of TDCIPP on commuters. If we picked up this relationship in five days, what does that mean for chronic, long-term exposure, for people who commute most weeks out of the year, year over year for decades? —David Volz. Resources. Aalekhya Reddam, George Tait, Nicholas Herkert, Stephanie C. Hammel, Heather M. Stapleton, David C. Volz (2020) “Longer commutes are associated with increased human exposure to tris(1,3-dichloro-2-propyl) phosphate,” Environment International, doi: 10.1016/j.envint.2020.105499. Emissions Health Materials

2020 83

Hyundai drops the Sonata Plug-In Hybrid for 2020

Green Car Reports

Hyundai’s decision to roll out its solar roof last week for the U.S. in the new version of the Sonata Hybrid—rather than the Sonata Plug-In Hybrid—seemed like a good albeit puzzling move. What piece of tech might it be saving for the plug-in, we wondered?

2020 71

Researchers develop real-time picture of formation of solid–electrolyte interphase of a Li-ion battery

Green Car Congress

During the first charging process of a new Li-ion battery cell, trace amounts of electrolyte components decompose sacrificially to form what is called a solid–electrolyte interphase (SEI) on the anode surface.

2020 83

More Trending

NYC Mayor orders all-electric fleet by 2040 and end to expansion of fossil-fuel-related infrastructure

Green Car Congress

New York City Mayor Bill de Blasio last week issued an executive order specifying the attainment of an all-electric “carbon-neutral” fleet by the year 2040. New York City operates more than 30,000 owned and leased vehicles (on-road and off-road), the largest municipal fleet in the United States. Under the executive order, New York’s Department of Citywide Administrative Services (DCAS) and NYC Fleet are to issue and implement a Clean Fleet Transition Plan, updating it every two years.

2020 68

Get a glimpse inside Rivian—and what it was developing before electric trucks

Green Car Reports

Rivian isn't quite ready to deliver its first electric vehicles, the R1T pickup and R1S SUV, but the company did release a video explaining its origin story. Founded in 2009 as Mainstream Motors, Rivian didn't start out as the same truck-focused company we know. Watch carefully in the video and you'll get a glimpse of the sporty coupe Rivian was

2020 57

ChargePoint and NATSO launch collaborative to expand EV charging along highways and in rural communities

Green Car Congress

Charging network ChargePoint and NATSO, which represents America’s travel plazas and truckstops, are creating a National Highway Charging Collaborative to extend access to EV charging. Over the next decade, the Collaborative will leverage $1 billion in capital to deploy charging at more than 4,000 travel plazas and fuel stops that serve highway travelers and rural communities.

2020 64