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In a statement released this morning, President Barack Obama said he has requested that US Environmental Protection Agency (EPA) Administrator Lisa Jackson withdraw the agency’s draft Ozone National Ambient Air Quality Standards (NAAQS) rulemaking. The Clean Air Act established two types of national air quality standards.
The New Mexico Environmental Improvement Board (EIB) and the Albuquerque-Bernalillo County Air Quality Control Board (AQCB) have each adopted the Clean Car Rule after a joint public hearing. Their independent approval of the Clean Car Rule allows California’s Advanced Clean Cars to be implemented statewide in New Mexico beginning 1 July 2022.
Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.
A study by an international team led by scientists at the University of East Anglia have identified four new man-made gases in the atmosphere, all of which are contributing to the destruction of the ozone layer. CFCs are the main cause of the hole in the ozone layer over Antarctica. —Lead researcher Dr. Johannes Laube.
Among the many climate-related vulnerabilities that can impact its mission, the US Environmental Protection Agency (EPA) cites a likely increase in tropospheric ozone pollution as potentially making it more difficult to attain National Ambient Air Quality Standards ( NAAQS ) in many areas with existing ozone problems.
Black carbon and tropospheric ozone are harmful air pollutants that also contribute to climate change. Reducing black carbon and tropospheric ozone now will slow the rate of climate change within the first half of this century, the study said.
Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.
In a paper published in the journal Atmospheric Environment , they report on the findings from a suite of scenarios designed to quantify the effect of both the magnitude of EV market penetration and the source of electricity generation used to power them. Locations with clean energy sources, however, saw reductions. Schnell et al.
Our newest propane autogas engine reinforces ROUSH CleanTech’s commitment to provide vehicle solutions that reduce the impact to the environment while leveraging an abundant, domestically produced fuel that costs less than diesel. —Todd Mouw, president of ROUSH CleanTech. We congratulate ROUSH CleanTech on this achievement.
While coal use causes warming through emission of heat-trapping carbon dioxide, it also releases comparatively large amounts of sulfates and other particles that, although detrimental to the environment, cool the planet by blocking incoming sunlight. Methane is an especially potent greenhouse gas. degree Fahrenheit (less than 0.1
Policies incentivizing the private sector to push to develop innovative “clean” technologies are likely to play a key role in achieving climate stabilization. Respectively, Title IV of the 1990 Clean Air Act and the Ozone Transport Commission/NO x Budget Program.). and NO 2 regulation in the US in 1970. Taylor 2012.
has agreed to spend more than $161 million on pollution controls, enhanced maintenance and monitoring, and improved internal management practices to resolve Clean Air Act violations at its Texas City, Texas refinery. BP Products North America Inc. The company will also pay a $12 million civil penalty. The plea is still under review by the US.
This finding reveals important opportunities for clean air improvements, especially in large port cities such as New York and Houston. Replacing more of these older and longer-lived engines with the latest clean diesel models, faster, will generate significant emissions reductions. —Ezra Finkin, DTF Policy and Outreach Director.
positive or negative—and magnitude of net climate forcing from BC emissions), currently available scientific and technical information provides a strong foundation for making mitigation decisions to achieve lasting benefits for public health, the environment, and climate. Earlier post.). —Report to Congress on Black Carbon.
EPA Administrator Lisa Jackson has reinstated the role of a key policy document created by agency scientists (the Staff Paper) that contains staff analyses of options for the administrator to consider when setting National Ambient Air Quality Standards (NAAQS) to protect human health and the environment. The new NAAQS review process.
In particular, TPS technology offers a groundbreaking approach to reducing emissions from combustion engines and improving the environment. These vehicles have long lifetimes and will continue to occupy the roads next to clean EVs for years to come. hp diesel engine.
They found that levels of pollutants that can contribute to the formation of ground-level ozone, or smog, have failed to continue a fairly steady decline as estimated by the US Environmental Protection Agency. These results show that meeting future air quality standards for ozone pollution will be more challenging than previously thought.
Tata Motors Limited and MAHLE have signed a joint development agreement for designing and developing a Secondary Loop Mobile Air Conditioning System (SL-MAC), under the aegis of United Nations Environment. The new SL-MAC system, which is testing the low-GWP refrigerants, is expected to increase vehicle energy efficiency.
The study by Nadine Unger, Drew Shindell and James Wang will appear in an upcoming issue of the journal Atmospheric Environment. In the first scenario (S1), ORT emissions were reduced by 50% in the US and globally, with the assumption that the replacement energy to supply the fleet is provided by a clean zero emission source.
Markey of the Energy and Environment Subcommittee on Tuesday released a draft of far-reaching energy and climate legislation that targets job creation, promotes renewables and energy efficiency, and places limits on emissions of greenhouse gases. Clean Fuels and Vehicles. Chairman Henry A. Partnering with the States.
NO x is a precursor for both ground level ozone and secondary PM 2.5 which are regulated under the National Ambient Air Quality Standards (NAAQS) because of their adverse effects on human health and the environment. —MECA Executive Director, Rasto Brezny.
xAI receives more Tesla Megapacks for Colossus 2 However, SELC–which is representing the NAACP in a potential lawsuit against xAI–criticized the omission of a key pollutant called ozone from the air quality tests. The city claimed levels of 10 pollutants tested were safe. Activist Pamela Moses criticized xAI.
Thanks to the Infrastructure Investment and Jobs Act’s (IIJA), there is $5 billion available in funding for clean school buses. Empowering clean transportation for children We’ll start with the most important reason; electric school buses are healthier for the children. Ready to get started?
Isoprene, a five-carbon diene formed naturally in plants and animals and a precursor of ozone, contributes more than 40% of these emissions. The scientists pointed out that converting the epoxides to aerosol is likely to be higher in polluted environments, because the aerosols’ acidity is generally higher when human activity is present.
We see it as similar to the ozone hole problem, where we really needed a tight, science-based focus on the limits to human inputs to the system--and howthose inputs affected the ozone layer's ability to keep people safe. What do we have to offer these billion people?
liter inline 4-cylinder gasoline, and the one Clean Fleet Report tested, a hybrid turbocharged 2.0-liter Fuel economy numbers reported by Clean Fleet Report are non-scientific and represent the reviewers driving experience using the dash gauge computer. liter inline 4-cylinder that puts out 310 horsepower and 310 pound-feet of torque.
Take, for example, the tens of thousands of fossil-fueled ships that chug across the ocean, spewing plumes of pollutants that contribute to acid rain, ozone depletion, respiratory ailments, and global warming. As we confront the enormous challenge of climate change, we should take inspiration from even the most unlikely sources.
A new interactive mapping tool shows how a growing number of US cities and states have passed regulations restricting the use of gas-powered lawn equipment, or incentivizing the use of electric equipment, with big clean air benefits for a comparatively small investment. The new interactive mapping tool was created by U.S.
In 2004, the Centralina region (the Greater Charlotte metro area, which straddles the North CarolinaSouth Carolina border) was designated as a non-attainment area for ozone under the Clean Air Act. The area stood to lose billions of dollars of federal funding for a wide variety of projects if the areas air quality didnt improve.
Global warming plays a role in thinning the ozone layer, thus permitting harmful rays’ penetration to the earth. EST was mandated to create a conducive environment for sustainable energy use. Therefore, if you want to learn smart ways of saving the environment while still using clean energy, visit the energy saving trust website.
like people driving futuristic electric cars and everything being clean! Reply Neutral Elodie @ Apr 19th 2009 4:38PM How clean is an electrical car, really? Still totally cool to see automakers can agree about stuff (much better than computer makers, indeed), but I always find it weird when people say electrical cars are clean.
And so back in, I believe it was the 80s, it might have been earlier than that, Paul Knutson who famously identified the ozone whole problem, he put forward the idea that putting material in the stratosphere might be an interesting way to reflect sunlight to cool the planet. And that was based on observations of volcanoes.
The US Environmental Protection Agency (EPA) will reconsider the 2008 primary and secondary ozone standards. In 2008, EPA established a new primary 8-hour standard for ozone of 0.075 parts per million (ppm), and a new secondary standard set at a form and level identical to the new primary standard. ppm standard, due to rounding.
Fast action on pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 2 °C (3.6 °F)—and Introduction of clean-burning biomass stoves for cooking and heating in developing countries.
What I do know, is how fossil fuel vehicles have contributed heavily to poor air quality in our towns and cities, damage to the environment, soil and water quality and have contributed to the depletion of the ozone layer! On a serious note, I wanted something spacious, safe, fast and better for the environment.
Counties projected to violate proposed Primary 8-hour Ground-Level Ozone Standards in 2020. The United States Environmental Protection Agency has proposed the strictest standards to date for ground-level ozone. EPA is also proposing to set a separate “secondary” standard to protect the environment within the range of 7-15 ppm-hours.
US Secretary of State Hillary Clinton announced the Climate and Clean Air Coalition to Reduce Short-Lived Climate Pollutants, a new global initiative to seize the opportunity of realizing concrete benefits on climate, health, food and energy resulting from reducing short-lived climate pollutants. for 2030 and beyond. Source: UNEP.
Air pollution—specifically PM 2.5 , ozone and NO 2 —could be to blame for up to 33 million emergency asthma attack visits to hospital a year, according to a new open-access study published in the journal Environmental Health Perspectives. 37% and 73% of ozone and PM 2.5 37% and 73% of ozone and PM 2.5
At cruising altitude, airplanes emit a steady stream of NO x into the atmosphere, where the chemicals can linger to produce ozone and fine particulates. The paper’s co-authors are Prakash Prashanth, Raymond Speth, Sebastian Eastham, and Jayant Sabnins, all members of MIT’s Laboratory for Aviation and the Environment. Eastham, Jayant S.
The research, led by the International Council on Clean Transportation and Environmental Health Analytics, LLC., —Josh Miller, researcher at the International Council on Clean Transportation (ICCT). A paper on the work is published in the journal Nature. —Susan Anenberg, co-Founder of Environmental Health Analytics, LLC.
billion people, according to Landrigan, whose research was funded in part by UN Environment Programme. and that due to ambient ozone pollution increased by 139.2%. We point to countries like the United States where we reduced air pollution by 70 percent since passage of the Clean Air Act in the 1970s. since 1990.
We’ve invested a lot of resources as a society to clean up our air. and ozone from a 21-year computer simulation of air pollution across the US. They estimated deaths from ischemic heart disease, chronic obstructive pulmonary disease, lung cancer and stroke related to PM 2.5 , and from respiratory disease for ozone. Zhang et al.
Perhaps surprisingly, this reduction in cross-state pollution also appears to be related to electric power generation: In recent years, regulations such as the Environmental Protection Agency’s Clean Air Act and other changes have helped to significantly curb emissions from this sector across the country. and/or ozone.
The European Environment Agency’s (EEA’s) “ Air quality in Europe — 2019 report ” shows that almost all Europeans living in cities are still exposed to air pollution levels that exceed the health-based air quality guidelines (AQGs) set by the World Health Organization (WHO). About 8% of the urban population in the EU-28 was exposed to PM 2.5
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