This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
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 ozonestandard 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.
Long-term exposure to ambient ozone appears to accelerate arterial conditions that progress into cardiovascular disease and stroke, according to a new University at Buffalo study. The study found that chronic exposure to ozone was associated with a progression of thickening of the main artery that supplies blood to the head and neck.
and ozone deaths, associated mortality rates, and population in G20 economies in 2015. and ozone worldwide in 2010 and ~385,000 in 2015, equivalent to 11.7% and ozone premature deaths in 2010 and 11.4% and ozone concentrations from transportation emissions resulted in 7.8 Transportation-attributable PM 2.5
Daily exposure to ground level ozone in cities worldwide is associated with an increased risk of death, according to the largest study of its kind, published in an open-access paper in The BMJ. Ground level ozone is a highly reactive gas commonly found in urban and suburban environments, formed when pollutants react in sunlight.
The Environmental Protection Agency (EPA) announced a new review of the Ozone National Ambient Air Quality Standards (NAAQS). EPA established the current standards at a level of 70 parts per billion in 2015 and retained them in 2020, after concluding that there was little new information to suggest the need for revision.
Exposure to ozone, long associated with impaired lung function, is also connected to health changes that can cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults. The findings associated ozone exposure with markers of platelet activation and increased blood pressure.
EPA is proposing , at the request of the State of Maine, to require the sale of reformulated gasoline ( RFG ) in York, Cumberland, Sagadahoc, Androscoggin, Kennebec, Knox and Lincoln counties in southern Maine starting in June 2015. The Maine legislature subsequently postponed the requirement for sale of RFG until 1 June 2015.
The US Environmental Protection Agency (EPA) issued final updates to its 2012 volatile organic compounds (VOCs) performance standards for storage tanks used in crude oil and natural gas production and transmission. tanks that came online before 12 April 2013 are likely to have lower emissions and must control VOC emissions by 15 April 2015.
vehicle emissions under the baseline scenario (a) and the difference between the tight-standard and baseline scenarios (b). However, these standards will not reduce CO 2 emissions, which is required to mitigate long-term climate change, the team notes. million metric tons of avoided ozone-related yield losses of major food crops; $US0.6-2.4
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 west (San Bernardino, CA) and 4.9
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.
and ozone at or above the current standards have been linked to neuroinflammation and high risk of Alzheimer’s disease (AD). A 2015 study found a 138% risk of increase of AD per increase of 4.34 ?g/m Exposures to concentrations of PM 2.5 g/m 3 in PM 2.5
NO x emissions in California are the most important contributor to ambient ozone and a key contributor to fine particulate matter pollution (PM 2.5 California is home to both the highest ozone levels (South Coast) and ambient particulate matter levels (San Joaquin Valley) in the United States. 2015/16: Q4 2019. 2012: Q2 2019.
Test routes included both city and highway roads, and a stop-and-go route similar to standard school bus operation. 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., associate director for testing and development at CAFEE.
in collaboration with scientists at the University of York’s Stockholm Environment Institute (SEI); University of Colorado; and the International Institute for Applied Systems Analysis, assessed 30 studies of vehicle emissions under real-world driving conditions in 11 major vehicle markets representing 80% of new diesel vehicle sales in 2015.
The US Environmental Protection Agency (EPA) released its latest set of proposed standards to reduce emissions of methane and volatile organic compounds (VOCs) from the oil and natural gas industry. The proposed updates also add emissions reduction requirements for sources of methane and VOC pollution that were not covered in the 2012 rules.
In the US, 200 million people live in areas where pollutants such as ozone and fine particulate matter exceed the standards. The full article is scheduled to be published in Volume 43, Issue 3 of the Journal of Alzheimer’s Disease and will appear online in December with a 2015 copyright. Lilian Calderón-Garcidueñas et al.
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.
NO x emissions have not been decreasing as expected in recent years (2011–2015) when comparing top-down estimates from satellites and surface NO 2 measurements to the trends predicted from the US Environmental Protection Agency’s emission inventory data, according to a new study by an international team of researchers.
For countries that are still far from reaching the Euro 6/VI equivalent standard, an interim policy target of Euro 4/IV-equivalent standards and 50 ppm sulfur fuel is a reasonable goal that provides substantial benefits, the authors suggest. micrometers or less (PM 2.5 ). —Chambliss et al.
The cap-and-trade joins a suite of other major climate program measures including standards for ultra-clean cars (Advanced Clean Cars, earlier post ), low-carbon fuels (Low Carbon Fuel Standard, earlier post ) and renewable electricity. The cap then declines about 2% in 2014 and then about 3% annually from 2015 to 2020.
The multi-filter was designed especially for the SPA platform and will first appear in the all-new XC90 in the beginning of 2015. m can be as much as 70% less than in a car without the filter, according to a standardized component test. Ground-level ozone. Hydrocarbons. Gases and unpleasant odors.
Most tugs are operating in locations near America’s ports which do not meet current federal health-based air quality standards. Starting in 2015, new diesel engines used in marine applications in the United States were required to meet Tier 4 emissions standards. Elena Craft, EDF Senior Director.
The cap-and-trade program also works in concert with other measures, such as standards for cleaner vehicles, low-carbon fuels, renewable electricity and energy efficiency, and complements and supports California’s existing efforts to reduce smog-forming and toxic air pollutants. Click to enlarge.
As with the earlier assessment, this study consists of two separate, but related, analyses: greenhouse gas emissions from 2015-2050, and air quality impacts in 2030. In the Lower GHG scenario, in 2050, total emissions for the electricity and transportation sectors could be reduced by 2610 million metric tons relative to 2015 levels.
An estimated 68 stations are needed to support the anticipated rollout of these vehicles in 2015-2017. Currently, the state’s transportation sector accounts for nearly 40% of the state''s greenhouse gas emissions; more than 95% of all transportation energy consumed in California is petroleum-based.
Air pollution is a serious public health issue, and exposures to concentrations of air pollutants at or above the current standards have been linked to neuroinflammation and neuropathology. In the US, 200 million people live in areas where pollutants such as ozone and fine particulate matter exceed the standards.
The US Environmental Protection Agency (EPA) and the US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) jointly released the finalized Phase 2 greenhouse gas and fuel efficiency standards for medium- and heavy-duty trucks.
The approach described is designed to meet simultaneously federal air quality standards; achieve greenhouse gas emission reduction targets; reduce petroleum consumption; and decrease health risk from transportation sources through 2030. Prior to the Board meeting, staff will hold a public workshop on 16 October 2015. Earlier post.).
Accelerating the introduction of cleaner new Tier 4 interstate line-haul locomotives to operate in California and other western states (2015-2025). NO x helps create ground-level ozone, or smog. Implementation dates would be staggered to coincide with the development and commercial production of these advanced technologies.
MARPOL Annex VI sets limits on NO x and SO x emissions from ship exhaust, and prohibits deliberate emissions of ozone-depleting substances. Global requirements include Tier II engine standards (NO x ) and a global limit on marine bunker fuel sulfur content, currently set at 3.5% (35,000 ppm) compared to a global average of 2.7% (27,000 ppm).
The study exposed laboratory rats 80 hours a week, for up to 30 months, to emissions from a heavy-duty diesel engine meeting 2007 US EPA standards using new filters and other control technology. The ACES results are expected to play an important role in future risk reviews of diesel engines by international and US agencies.
The Partnership aims to “ accelerate the introduction of advanced truck and bus technologies that use less fuel, have greater fuel diversity, operate more safely, are more reliable, meet future emissions standards, and are cost effective.” These new targets need to be set for the research efforts.
In 2014, Volkswagen of America announced that starting with the launch of the zero-tailpipe emissions battery-electric 2015 e-Golf ( earlier post ), it would invest in projects to offset the carbon emissions created from the e-Golf on a full lifecycle basis: production, distribution and up to approximately 36,000 miles (57,936 km) of driving.
The utility of guidelines for sustainable biofuel production and certification programs may be reduced if they are based only on product life-cycle and farming standards, as these cannot address the difficult issue of indirect land use resulting from growing demand. However very few studies include water use impacts. In 2007/08, 0.9%
Many of the strategies employed to reduce GHG emissions will also work to meet the national ambient air quality standard for ozone in 2032. Major transportation related policies already in place are: The Low Carbon Fuel Standard (LCFS). Background. —Draft Scoping Plan Update.
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%.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content