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The California Air Resources Board today approved a statewide plan for attaining the federal health-based standard for ozone, typically experienced as smog. These costs do not reflect the potential health and environmental benefits of attaining the federal ambient air quality standards. —CARB Chair Liane Randolph.
Exposure to ozone at levels currently deemed safe by the NAAQS clean air standards can have a significant and negative effect on lung function, according to researchers at the University of California, Davis. The previous primary and secondary standards were identical 8-hour standards, set at 0.08 Earlier post.).
million in 2021 Targeted Airshed Grant (TAG) funding from the US Environmental Protection Agency (EPA) to deploy five XCIENT Fuel Cell electric trucks in California. EPA’s TAG program aims to reduce air pollution in areas of the nation with the highest levels of ambient ozone and fine particulate matter (PM 2.5 ) pollution.
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.
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 ozonestandard, which replaced the older 1-hour ozonestandard (0.12
Illustration of projected ozone changes in the South Coast region due to climate change in 2050. Areas in orange and red could see ozone concentrations elevated by 9 to 18 parts per billion. Climate Change Impact on Air Quality in California. Click to enlarge. Kleeman of UC Davis, lead author. Principal Investigator: Michael J.
Ozone, the main component of smog, is a plant-damaging pollutant formed by emissions from vehicles, cooking stoves and other sources. New research shows that ozone pollution damaged millions of tons of wheat, rice, soybean and cotton crops in India in 2005. Surface ozone pollution in India damaged 6 million metric tons (6.7
The Governing Board of California’s South Coast Air Quality Management District (SCAQMD) earlier this year voted to petition the US Environmental Protection Agency (EPA) to adopt tougher emission standards for engines of heavy-duty trucks to help the region meet federal clean air goals. liter engine, produced by Cummins Westport Inc.,
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. The US EPA recently proposed new tougher ground-level ozonestandards.
The CTI will include a future rulemaking that will update the existing NO x standard which was last set in 2001 while also streamlining compliance and certification requirements. The US has made major reductions in NO x emissions, but it’s been nearly 20 years since EPA updated these standards.
The California Air Resources Board (CARB) voted to approve an updated plan for the South Coast Air Basin aimed at further cutting smog-forming emissions to attain the federal 8-hour ozonestandard. The plan also includes current efforts to transform California’s vehicle fleet to zero-emission. —CARB Chair Mary D.
million in additional California Air Resources Board (CARB) funding to replace heavy-duty trucks through the Valley Air District’s grant program. Reducing emissions from mobile sources is key to the San Joaquin Valley meeting federal ambient air quality standards. standards.
The “Pathways to Near-Zero-Emission Natural Gas Heavy Duty Vehicles” report, authored by GNA on behalf of Southern California Gas Co. California policy makers face challenges in devising a pathway that can simultaneously help the state achieve NO x and GHG reduction targets. g/bhp-hr—75% below today’s standard. Background.
The California Air Resources Board (ARB or Board) announced a solicitation for a grantee for up to $1 million to support up to two independent projects for demonstration and administration of advanced locomotive technologies that approach, meet, or exceed US Environmental Protection Agency (EPA) Tier-4 locomotive NO x and PM emission standards (i.e.,
As California continues to reduce local sources of ozone, ozone entering the state from the Pacific makes up a larger fraction of measured ozone levels. An ozonesonde is a balloon which measures ozone from the surface to more than 10 kilometers above the ground.
On 6 March 2020, the California Air Resources Board (CARB) proposed to set an intermediate FTP NO x emissions limit of 50 mg/bhp-hr in model years 2024-2026 with a final FTP standard of 20 mg/bhp-hr in 2027, representing a 90% reduction below today’s standard of 200 mg/bhp-hr. Source: MECA. ppb in the east (Atlanta, GA).
BASF announced the commercial launch of PremAir NXT, a next-generation direct ozone reduction (DOR) catalytic coating technology for heat exchange surfaces such as radiators that can help automakers meet new US Tier 3 and California LEV III emissions reduction requirements. it converts ground-level ozone already in the air.
The California Energy Commission unanimously adopted the 2013-2014 Investment Plan Update to support the development and use of green vehicles and alternative fuels. Buyers must agree to register and operate the vehicles in California at least 90 percent of the time for three years. $7 20 million for hydrogen fueling infrastructure.
The California Air Resources Board (ARB) and the National Oceanic and Atmospheric Administration (NOAA) are collaborating in the $20-million CalNex research project to examine the nexus between air pollution and climate change. The complex roles that ozone and aerosols play in the atmosphere provide examples of such trade-offs.
The California Air Resources Board (ARB) will host a public workshop to discuss regulatory concepts to reduce NO x emissions from new on-road heavy-duty vehicles greater than 10,000 pounds gross vehicle weight rating. The workshop will be available via webcast for those unable to attend in person.
On the first day of a two-day board meeting—the second day of which (Friday 24 March) will consider the Advanced Clean Cars Midterm Review—the California Air Resources Board (ARB) took a number of climate and air quality actions. emissions by more than 20%. emissions by more than 20%.
The California Air Resources Board (ARB) has released. Deployment of fuel efficient vehicle tires for in-use vehicles could include limited incentives, followed by ratings and then standard setting to permanently shift the market. the final version of the proposed First Update to the Climate Change Scoping Plan (First Update).
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. even though the fuel sale in California increased by about a factor of three over the same time period. —Warneke et al. Holloway, J.
California’s latest greenhouse gas data shows that while the state continues to stay below its 2020 target for emissions, there is much more work to do to achieve carbon neutrality by 2045. Source: California Air Resources Board (ARB). Per capita GHG emissions in California have dropped from a 2001 peak of 14.0
The California Air Resources Board approved changes to an existing $28 million financial assistance program this week that will significantly help more California independent truckers qualify for the purchase of a cleaner-running vehicle. VIP is part of the state’s overall plan to cut toxic diesel emissions 85 percent by 2020.
At its meeting in Sacramento yesterday, the California Air Resources Board (ARB) endorsed the state’s cap-and-trade regulation. The regulation is designed so that California may link up with programs in other states or provinces within the Western Climate Initiative, including New Mexico, British Columbia, Ontario and Quebec.
The US Environmental Protection Agency (EPA) has pushed back its projected release of the Notice of Proposed Rulemaking (NPRM) for Tier 3 light-duty vehicle emission and fuel standards to July 2012. The Tier 3 standards will succeed the current Tier 2 requirements. EPA’s work on the Tier 3 standards began in February, 2011.
proposed NMOG+NO x standards in new LEV III. The California Air Resources Board (ARB) is developing a proposal for more stringent emission requirements—i.e., ARB will hold a one-day workshop on 2 March to discuss its preliminary thoughts and sources of information upon which to base the proposed standards and procedures.
This action is based on the premise that federal law preempts state and local tailpipe greenhouse gas (GHG) emissions standards as well as zero emission vehicle (ZEV) mandates. California’s ability to enforce its Low Emission Vehicle program and other clean air standards to address harmful smog-forming vehicle emissions—i.e.,
The California Air Resources Board (ARB) is soliciting research suggestions for the Fiscal Year 2012-2013 Annual Research Plan in the form of brief conceptual descriptions that address specified research gaps and support the Board’s ongoing regulatory and policy priorities. The deadline to submit research concepts is 31 January 2012.
The California Air Resources Board on Thursday adopted the final greenhouse gas (GHG) emissions cap-and-trade regulation. Cap-and-trade is another important building block in California’s effort to create a clean and vibrant economy. the destruction of existing stores of ozone-depleting substances in the U.S. Earlier post.)
The US Environmental Protection Agency (EPA), USDepartment of Justice (DOJ), and California Air Resources Board (CARB) announced a proposed settlement with Daimler AG and its American subsidiary Mercedes-Benz USA, LLC resolving alleged violations of the Clean Air Act and California law associated with emissions cheating.
Among the direct transportation-related provisions in the extensive package are a low-carbon fuel standard for all transportation fuels; financial support for large scale demonstrations of electric vehicles; and financial support for automakers retooling plants to make electric vehicles. trucks, construction machines, ships and planes.
NO x emissions remain a significant challenge to air quality in the US, and are a predominant non-attainment concern for many areas, especially in California. Test routes included both city and highway roads, and a stop-and-go route similar to standard school bus operation. —Ross Ryskamp, Ph.D.,
Earlier this year, the US Environmental Protection Agency (EPA) received several petitions from state and local government agencies from across the country and other organizations to increase the stringency of the on-highway heavy-duty engine NO x emission standards from 0.2 grams per brake horsepower-hour (g/bhp-hr) to 0.02
The California Air Resources Board directed its staff to take steps to provide further locomotive and rail yard emission reductions beyond those achieved by existing US Environmental Protection Agency and state regulations and agreements. California leads the nation with the most extensive efforts to reduce locomotive and rail yard emissions.
Alternative-fuel technology company ROUSH CleanTech has developed the first available propane autogas engine certified to California Air Resources Board’s (CARB’s) optional low oxides of nitrogen emissions standard for heavy-duty engines with 0.02 g/bhp-hr heavy-duty engine standard. grams per brake horsepower-hour (g/bhp-hr).
The staff of the California Air Resources Board (CARB) is proposing amendments to the Fill Pipes Specifications to help ensure new motor vehicle fill pipes continue to be compatible and to form a good seal with Phase II recovery nozzles that are certified for use at California gasoline stations, thereby reducing overpressure.
2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004 engines.
In a cohort study of a subset of 2050 newborns from the Children’s Health Study in southern California, researchers at the University of Southern California (USC) found that an increase of 2 standard deviations in prenatal exposure to particulate matter in air pollution was associated with higher newborn total thyroxine (TT4) measures.
A report released by the University of California Riverside’s College of Engineering-Center for Environmental Research and Technology (CE-CERT), found that the new 8.9L Cummins Westport ISL G near-zero (NZ) natural gas engine ( earlier post ) meets and exceeds the certification standards during a full range of duty cycles.
The California Air Resources Board (ARB) has adopted new LEV III emissions regulations which go into effect in 2015, requiring automakers to further reduce evaporative emissions. The Super Ultra-Low Emissions Vehicle (SULEV) standard under these regulations specifies near-zero evaporative emissions. It is also a tamper-proof solution.
The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology. We estimate ozone and SOA formation potential. —Saliba et al.
The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). California currently limits the ethanol content of gasoline to 10 percent.
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