London, Ozone and Study

York study: Less traffic in first UK lockdown reduced NO2 pollution but caused increase in surface ozone

Green Car Congress

DECEMBER 27, 2020

Less traffic on the roads during the first COVID-19 lockdown in the UK led to a reduction in air pollution but may have caused potentially damaging surface ozone levels to rise, according to a new study led by researchers at the University of York. These results are a cautionary tale. —Professor Lee.

Ozone

Ozone Pollution 2020 2015

HEI launches two new non-tailpipe particulate emission studies

Green Car Congress

JANUARY 8, 2023

The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.

Emissions

Emissions Pollution Exhaust London

Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

Green Car Congress

MARCH 1, 2019

A new study provides the most detailed picture available to date of the global, regional, and local health impacts attributable to emissions from four transportation subsectors: on-road diesel vehicles; other on-road vehicles; shipping; and non-road mobile engines such as agricultural and construction equipment. Source: The ICCT.

Ozone

Ozone 2015 2010 Exhaust

Study finds São Paulo switch from ethanol to gasoline dropped local ozone levels by 20%, increased CO and nitric oxide concentrations

Green Car Congress

APRIL 29, 2014

A study by a pair of researchers at Northwestern University found that when fuel prices drove residents of São Paulo, Brazil, to switch from ethanol to gasoline in their flexible-fuel vehicles, local ozone levels dropped 20%. The four-year study by chemist Franz M. Their paper appears in the journal Nature Geoscience.

Ozone

Ozone Gasoline Pollution Gasoline-Electric

Study uncovers role of longer-chain unburned hydrocarbon emissions from diesels in London air pollution; calls for regulatory shift

Green Car Congress

SEPTEMBER 27, 2015

The study found that 60% of the winter primary hydrocarbon hydroxyl radical reactivity in London is from those diesel-related hydrocarbons; the authors predicted that the longer-chain HCs contribute up to 50 % of the ozone production potential in London. Dunmore et al. Dunmore et al. Dunmore et al.

London

London Pollution Diesel Emissions

HEI study finds London Congestion Charging Scheme shows little evidence of improving air quality

Green Car Congress

APRIL 27, 2011

The London Congestion Charging Scheme (CCS)—which charged for travel into central London and reduced traffic volume ( earlier post )—has shown little evidence that it improved air quality as well, according to Part I of a new study published by the Health Effects Institute (HEI).

London

London Charging Pollution Diesel

Study provides more insight into air pollution mechanisms that cause cardiovascular diseases

Green Car Congress

AUGUST 24, 2018

course, fine, ultrafine particles) and gaseous pollutants such as ozone, on vascular function. Here, we provide an updated overview of the impact of particulate and gaseous pollutants on endothelial function from human and animal studies. —Münzel et al.

Pollution

Pollution Insight Ozone Cleveland

NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

Green Car Congress

AUGUST 9, 2012

Between 2002 and 2010 alone, the concentration of VOCs dropped by half, according to a new study by NOAA scientists and colleagues, published in the AGU’s Journal of Geophysical Research. —lead author Carsten Warneke, Ph.D., Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder.

Los Angeles

Los Angeles Gasoline Ozone 2002

HALO research aircraft measuring the emissions of megacities in EmeRGe project

Green Car Congress

MARCH 22, 2018

Previously, the researchers studied European conurbations from the air. The transport and transformation of plumes from selected European and Asian major population centers (MPCs) will now be investigated with special focus on the rate of formation of ozone and aerosols. —DLR research pilot Stefan Grillenbeck.

Emissions

Emissions Taiwan Asia Ozone

Lancet Series Finds That Cutting Greenhouse Pollutants Will Have Major Direct Health Benefits Worldwide

Green Car Congress

NOVEMBER 28, 2009

The studies use case studies to demonstrate the co-benefits of tackling climate change in four sectors: electricity generation, household energy use, transportation, and food and agriculture. The study followed 352,000 people in 66 US cities and was conducted by a team of US and Canadian researchers led by Jerrett and Smith.

Pollution

Pollution Climate Change Ozone Climate

COVID-19 Forced Us All to Experiment. What Have We Learned?

Cars That Think

JULY 20, 2021

A scholarly literature has documented this process in fields as diverse as engineering, risk reduction, management, and urban studies. To find the upside of emergencies, we first looked at the economic effects of a tidy little crisis, a two-day strike that partially disrupted service of the London Underground in 2014.

Chad

Chad London Iceland Ozone

SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

Green Car Congress

APRIL 3, 2009

In their paper on lifecycle analysis, Emanuela Menichetti and Martina Otto reviewed and assessed 30 LCA studies particularly those relating to the energy balance and greenhouse gas (GHG) emissions of biofuels produced from a range of crops and other biomass feedstocks using various conversion technologies.

Conversion

Conversion Water Emissions 2009

EV Driven

York study: Less traffic in first UK lockdown reduced NO2 pollution but caused increase in surface ozone

HEI launches two new non-tailpipe particulate emission studies

Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

Study finds São Paulo switch from ethanol to gasoline dropped local ozone levels by 20%, increased CO and nitric oxide concentrations

Study uncovers role of longer-chain unburned hydrocarbon emissions from diesels in London air pollution; calls for regulatory shift

HEI study finds London Congestion Charging Scheme shows little evidence of improving air quality

Study provides more insight into air pollution mechanisms that cause cardiovascular diseases

NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

HALO research aircraft measuring the emissions of megacities in EmeRGe project

Lancet Series Finds That Cutting Greenhouse Pollutants Will Have Major Direct Health Benefits Worldwide

COVID-19 Forced Us All to Experiment. What Have We Learned?

SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

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