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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. The 2022 State Implementation Plan Strategy identifies the state’s control strategy for meeting the federal 70 parts per billion, 8-hour ozone standard over the next 15 years.
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.
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. Edward Schelegle, University of California, Davis. Earlier post.). Specifically, we found that 6.6
has paid $422,500 in penalties for supplying gasoline and diesel fuel in violation of California regulations designed to protect air quality. Chevron agreed to pay the penalties as part of three separate settlements it reached with the California Air Resources Board (ARB). Chevron USA Inc. In all, 15.9
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.
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. Background. grams per brake horsepower-hour (g/bhp-hr).
The California Air Resources Board is accepting applications for the 2014 Haagen-Smit Clean Air Awards. Through a series of innovative experiments he demonstrated that most of California’s smog is the result of motor vehicle exhaust and industrial smokestack pollution reacting with sunlight to create ground-level ozone.
Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. The United States and California state averages shown are based on total on- and off-road use. The urban areas in California shown are for on-road fuel use only. SOA contributions from the two sources are equivalent at 6% diesel fuel use.
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. These findings are significant due to the fact that NO x and ozone are major non-attainment concerns for many areas across the nation. —Ross Ryskamp, Ph.D.,
The California Air Resources Board (ARB) has released , for public review, a concept paper to initiate discussion on the development of a Short-Lived Climate Pollutant Reduction Strategy. Short-lived climate pollutants (SLCPs) include methane, tropospheric ozone, black carbon, and fluorinated gases.
Marine engines are responsible for the emission of many tons of nitrogen oxide (NO x ), an ozone-forming compound, as well as particulate emissions (soot) into the New York airshed.
To comply with the 2010 NOX limit, on-highway heavy-duty engine manufacturers utilized a urea-based selective catalytic reduction (SCR) catalyst in engine exhaust placed downstream of a diesel oxidation catalyst (DOC) and a catalyzed diesel particulate filter (DPF) used for particulate matter (PM) emissions control. g/hp-hr in 2010.
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.
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.
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. BASF introduced the EvapTrap automotive air intake system hydrocarbon trap. It is also a tamper-proof solution.
The California Air Resources Board has equipped two battery-powered electric vehicles to take ground level readings of greenhouse gases throughout the state. The zero-emission RAV 4s were given to ARB as part of a settlement agreement for air quality violations by Toyota.
TPS technology has other applications as well, such as emissions reduction from diesel engines and commercial kitchen exhaust systems, plasma treatment of surfaces for cleaning, as well as ozone generation. —Dan Singleton, CEO and co-founder of Transient Plasma Systems. hp diesel engine.
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.
These technology examples, along with numerous cost-effective technological advances in exhaust after-treatment technologies, demonstrate that there are feasible approaches where GHG reductions and fuel efficiency do not have to be sacrificed to achieve greater NO x reductions. —EPA memorandum in response to petitions.
The enleanment due to oxygen in ethanol and the low volatility of the ethanol portion of the fuel blend at low temperature gives concerns that existing and planned vehicles designed for federal and California emissions test fuels will not meet their required emissions standards when operated on mid-level ethanol blends. New project).
NO x is a precursor for both ground level ozone and secondary PM 2.5 Technologies such as cylinder deactivation (CDA), high efficiency variable geometry turbochargers with exhaust gas by-pass, and start-stop systems are only some of the commercially available fuel saving technologies that can be implemented by 2024.
The California Air Resources Board announced $3.7 Rebates are available to individuals, business owners and government entities in California that purchase or lease new eligible zero-emission or plug-in hybrid electric light-duty vehicles now. million in rebates for plug-in hybrid and zero emissions vehicles as part of an overall $42.3
1,000 to 21,000) deaths due to changes in ozone concentrations. 900 to 11,000) ozone-related early deaths per year. 300 to 4,000) ozone-related premature mortalities per year. 2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. 53,000 (90% CI: 24,000–95,000) PM 2.5 related premature deaths and ?5,000
The California Air Resources Board (ARB) cited Dr. Wall for his leadership role in the development and implementation of all the major technology advancements ultimately leading to the near-zero levels of emissions of particulate matter and oxides of nitrogen from engines. Dr. Kirk R.
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