2008, Organization, Ozone and Pollution

Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

Green Car Congress

MAY 12, 2020

Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. Ozone is harmful to humans at ground-level, causing pulmonary and heart disease.

Ozone

Ozone Pollution Global Iran

Study quantifies impact of oil and gas emissions on Denver’s ozone problem

Green Car Congress

AUGUST 12, 2016

The first peer-reviewed study to directly quantify how emissions from oil and natural gas (O&NG) activities influence summertime tropospheric ozone (O 3 ) pollution in the Colorado Front Range confirms that chemical vapors from oil and gas activities are a significant contributor to the region’s chronic ozone problem.

Ozone

Ozone Oil Gas Emissions

EPA proposes tightening primary ozone standards to range of 65-70 ppb; final rule by October 2015

Green Car Congress

NOVEMBER 26, 2014

Counties where measured ozone is above proposed range of standards, based on 2011-2013 monitoring data. Earlier this year, EPA staff had recommended the further reduction of this primary ozone standard from the current 75 ppb (parts per billion) to a revised level within the range of 70 ppb to 60 ppb—and preferably below 70 ppb.

Ozone

Ozone EPA Standards 2015

EPA tightens ground-level ozone standard to 70 ppb

Green Car Congress

OCTOBER 1, 2015

issued its final rule revising the National Ambient Air Quality Standards (NAAQS) for ground-level ozone to 70 parts per billion (ppb) from 75 ppb to protect public health. Ground-level ozone forms when nitrogen oxides (NO x ) and volatile organic compounds (VOCs) react in the air. The US Environmental Protection Agency (EPA).

Ozone

Ozone EPA Standards District of Columbia

EPA proposes approval of new ozone plans for the two of the worst Air Quality Zones in US: California’s San Joaquin Valley and South Coast

Green Car Congress

SEPTEMBER 9, 2011

US EPA Region 9 8-hour ozone trends, 1979-2000. These State Implementation Plans (SIPs) are the roadmaps to meeting the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) of 0.08 In 1997, EPA first established the 8-hour ozone standard, which replaced the older 1-hour ozone standard (0.12 Source: EPA.

Ozone

Ozone EPA Pollution 2002

Study Links Springtime Ozone Increases Above Western North America to Emissions in Asia

Green Car Congress

JANUARY 21, 2010

Springtime ozone distributions for 1984, 1995–2008 in the mid-troposphere (3.0–8.0 Springtime ozone levels above western North America are rising primarily due to air flowing eastward from the Pacific Ocean, a trend that is largest when the air originates in Asia. km), and air mass source regions. Credit: Nature, Cooper et al.

North America

North America Ozone Asia America

New study finds asthma morbidity in children is enhanced in areas with high traffic-related air pollution near the home

Green Car Congress

APRIL 7, 2015

Results from a new study by researchers at the University of California Irvine support a growing body of scientific literature indicating that sensitive populations, including children, certain ethnic groups and people of lower socioeconomic status, are more vulnerable to the effects of high exposures to traffic-related air pollution.

Pollution

Pollution California Davis Ozone

California ARB soliciting research suggestions for FY 2012-2013 plan; sustainable communities, behavior, pollutant exposure, air pollution science, GHG targets

Green Car Congress

DECEMBER 25, 2011

The FY 2011-2012 plan focused primarily on five areas of interest: sustainable communities; behavior and technology adoption; health and air pollution exposures; air pollution science; and greenhouse gas targets. These regulations have led to considerable improvements in air quality throughout California.

Pollution

Pollution 2012 California 2013

California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

Green Car Congress

NOVEMBER 29, 2016

The California Air Resources Board (CARB) has posted a revised draft of California’s proposed Short-Lived Climate Pollutant (SLCP) Strategy. SLCPs are a category of pollutants which remain in the atmosphere for a relatively brief period, but have global warming potentials that are much higher than those of CO 2.

Pollution

Pollution California Emissions Climate

Research shows clean fuel-use for ships off California coast extremely effective in reducing sulfur dioxide pollution

Green Car Congress

MAY 16, 2011

Data collected during a major 2010 state-federal atmospheric research project show that the first-in-the-nation regulation requiring ocean-going vessels to use clean fuel when near the California coast has been extremely effective in reducing sulfur dioxide pollution from ships, according to the California Air Resources Board (ARB).

Pollution

Pollution California Clean Cleaning

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

A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. VOCs, primarily emitted from the tailpipes of vehicles, are a key ingredient in the formation of ground-level ozone which, at high levels, can harm people’s lungs and damage crops and other plants.

Los Angeles

Los Angeles Gasoline Ozone 2002

California ARB moves forward with climate and air quality actions

Green Car Congress

MARCH 24, 2017

CARB also adopted a new plan to curb destructive “super pollutants” including black carbon, fluorinated gases and methane. The plan, California’s Short-lived Climate Pollutant Reduction Strategy, maps out the route to more rapid greenhouse gas reductions by clamping down on these super pollutants. emissions by more than 20%.

Climate

Climate California Ozone Pollution

Study finds changes in the Arctic sea ice cover may be driving changes in atmospheric chemistry

Green Car Congress

MARCH 2, 2012

Bromine then reacts with a gaseous form of mercury, turning it into a pollutant that falls to Earth’s surface. Bromine also can remove ozone from the lowest layer of the atmosphere, the troposphere. Despite ozone’s beneficial role blocking harmful radiation in the stratosphere, ground-level ozone is a harmful pollutant.

Mercury

Mercury Ozone United Kingdom 2008

US and UK researchers report direct measurement of key atmospheric reactant; more rapid formation of secondary aerosols

Green Car Congress

JANUARY 16, 2012

Our results will have a significant impact on our understanding of the oxidizing capacity of the atmosphere and have wide ranging implications for pollution and climate change. However, until 2008 no gas-phase Criegee intermediate had been observed, and rate coefficients derived from indirect measurements spanned orders of magnitude.

Ozone

Ozone Climate Change Climate 2012

Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

Green Car Congress

JULY 29, 2010

Jacobson used a computer model of global climate, air pollution and weather that he developed over the last 20 years and updated to include additional atmospheric processes to analyze how soot can heat clouds, snow and ice. 2008] and methane [Schutz et al., Mark Jacobson. Dessler et al., Guenther et al., 1995] and NO. Guenther et al.,

Global

Global Ozone CO2 Pollution

NASA GISS Study Finds That Methane Has an Elevated Warming Effect Due to Interactions With Aerosols

Green Car Congress

OCTOBER 30, 2009

As a result of their findings, published in the 30 October issue of the journal Science , the authors argue that assessments of multigas mitigation policies, as well as any separate efforts to mitigate warming from short-lived pollutants, should include gas-aerosol interactions. Similar reactions influence the creation of nitrate aerosols.

Climate Change

Climate Change Climate Ozone Pollution

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Green Car Congress

JANUARY 27, 2015

The Advanced Collaborative Emissions Study (ACES), released today by the Health Effects Institute (HEI), also confirmed that the concentrations of particulate matter and toxic air pollutants emitted from NTDE are more than 90% lower than emissions from traditional older diesel engines (TDE). Earlier post.) —ACES report. ACES background.

Exhaust

Exhaust Diesel Engine 2007

Calif. ARB releases GHG scoping plan update; more ZEVs, “LEV IV”, MD and HD regulations; ZEV for trucks; more LCFS

Green Car Congress

FEBRUARY 11, 2014

The update identifies eight key sectors for ongoing action: Energy; Transportation, fuels, land use and infrastructure; Agriculture; Water; Waste management; Natural lands; Short-Lived Climate Pollutants (such as methane and black carbon); and Green Buildings. Transportation.

Transportation

Transportation Emissions California Ozone

California ARB LEV III Concept Targeting Fleet-Average SULEV-Level Emissions Performance from New Vehicles by MY 2022

Green Car Congress

FEBRUARY 11, 2010

Each certification level has its own permissible emission levels for non-methane organic gases (NMOG), oxides of nitrogen (NO x ), formaldehyde (HCHO), carbon monoxide (CO), and particulate matter (PM). LEVII criteria pollutant emission standards (PC/LDT1 and LDT2). Category Durability basis. —LEV III discussion paper.

Emissions

Emissions Fleet California Vehicles

Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

Green Car Congress

OCTOBER 20, 2012

They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology. Unregulated pollutants also include ozone precursors and bioaccumulative and toxic compounds. The second engine was a Ford 2008 6.4

Pollution

Pollution Diesel Emissions Engine

SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

Green Car Congress

APRIL 3, 2009

The SCOPE (Scientific Committee on Problems of the Environment) International Biofuels Project, has published the full proceedings of its Rapid Assessment workshop on the environmental effects of biofuel technologies, 22-25 September 2008. SCOPE is part of the International Council for Science.

Conversion

Conversion Water Emissions 2009

US EPA proposes to retain existing NAAQS for ozone

Green Car Congress

JULY 14, 2020

The US Environmental Protection Agency (EPA) is proposing to retain, without changes, the existing, more stringent 2015 National Ambient Air Quality Standards (NAAQS) for ozone. From 2017 to 2019, ozone concentrations fell 4%. During that same time, national average ozone concentrations have dropped 25%. Background.

Ozone

Ozone EPA Pollution 2008

EV Driven

Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

Study quantifies impact of oil and gas emissions on Denver’s ozone problem

EPA proposes tightening primary ozone standards to range of 65-70 ppb; final rule by October 2015

EPA tightens ground-level ozone standard to 70 ppb

EPA proposes approval of new ozone plans for the two of the worst Air Quality Zones in US: California’s San Joaquin Valley and South Coast

Study Links Springtime Ozone Increases Above Western North America to Emissions in Asia

New study finds asthma morbidity in children is enhanced in areas with high traffic-related air pollution near the home

California ARB soliciting research suggestions for FY 2012-2013 plan; sustainable communities, behavior, pollutant exposure, air pollution science, GHG targets

California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

Research shows clean fuel-use for ships off California coast extremely effective in reducing sulfur dioxide pollution

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

California ARB moves forward with climate and air quality actions

Study finds changes in the Arctic sea ice cover may be driving changes in atmospheric chemistry

US and UK researchers report direct measurement of key atmospheric reactant; more rapid formation of secondary aerosols

Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

NASA GISS Study Finds That Methane Has an Elevated Warming Effect Due to Interactions With Aerosols

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Calif. ARB releases GHG scoping plan update; more ZEVs, “LEV IV”, MD and HD regulations; ZEV for trucks; more LCFS

California ARB LEV III Concept Targeting Fleet-Average SULEV-Level Emissions Performance from New Vehicles by MY 2022

Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

US EPA proposes to retain existing NAAQS for ozone

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