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Since the 1980s, air pollution has increased worldwide, but it has increased at a much faster pace in regions close to the equator. They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane.
High levels of air pollutants, especially fine particulate matter (PM 2.5 ) and to a lesser extent, ozone, may be linked to a heightened risk of developing mouth cancer, suggests a study by a team of Taiwanese researchers. Diagnoses of mouth cancer were then linked to local area readings for air pollutants taken in 2009.
In a new study apportioning air pollution health burdens across US sectors, researchers at the Office of Air Quality Planning and Standards, US Environmental Protection Agency (EPA) determined that mortality from air pollution has fallen over time but that many sectors continue to pose a substantial risk to human health.
A long-term study of the health of Canadian children has found that exposure to ozone (O 3 ) at birth was associated with an 82% increased risk of developing asthma by age three. An 82% higher risk of developing asthma was associated with each 10 parts per billion, or ppb increase in exposure to ozone at birth.
A new statistical method developed by researchers at KAUST (King Abdullah University of Science and Technology, Saudi Arabia) can detect abnormal ozone levels within large bodies of monitored data. The monitoring methods can quickly and accurately detect ozone anomalies—localized spikes in ozone concentration indicated by sensor data.
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
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.
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.
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.
Seven billion people, more than 95% of the world’s population, lived in areas exceeding the WHO Guideline for healthy air in 2016, according to a new global study. Comparison of 2016 annual average PM 2.5 Population-weighted seasonal average ozone concentrations in 2016. In 2016 a total of 2.5 contributed to 4.1
Through routine audits, CARB discovered that Del Monte’s chartered fleet calling at the Port of Hueneme for 2015-2016 did not meet the operational time limits for at least 50% of its visits and did not reduce its auxiliary engine power generation by 50%. These reductions decrease air pollution and the mortality rate of endangered whales.
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
Air pollution impairs the function of blood vessels in the lungs, according to a study of more than 16,000 patients presented at EuroEcho-Imaging 2016. The study examined the effect of air pollution on pulmonary haemodynamics (blood flow) in a population and in individuals. Increases in PM 10 and PM 2.5
Air pollution may shorten the survival of patients with lung cancer, suggests a population-based study by a team from the University of Southern California published in the journal Thorax. Participants’ average exposure to nitrogen dioxide (NO 2 ), ozone (O 3 ), particulate matter of less than 10 um, and less than 2.5
Decreases in ambient air pollution levels over the past 20 years in Southern California were associated with significant reductions in bronchitic symptoms in children with and without asthma, according to a study by researchers at the University of Southern California published in JAMA. Kiros Berhane, Ph.D., —Berhane et al.
CHIE participants are exposed to one or several common air pollutants usually for a few hours at concentrations that are not expected to produce adverse responses. The NAAQS process has broad health importance because it regulates the outdoor air concentrations of those pollutants. 2009 to Oct.
In “Estimated Excess Morbidity and Mortality Caused by Air Pollution above ATS Recommended Standards, 2011-2013,” published online in the August edition of Annals of the American Thoracic Society , researchers report on the annual health benefits of meeting more protective standards recommended by the ATS for O 3 and PM 2.5.
New research shows that household (indoor) and outdoor air pollution contribute to more than 5.5 In the context of the Global Burden of Disease 2013 study ( earlier post ), researchers from Canada, the United States, China and India quantified air pollution levels and attributable health impacts for 188 countries for the period 1990-2013.
Under the proposed settlement, lodged with the US District Court for the District of Columbia, Daimler will recall and repair the emissions systems in Mercedes-Benz diesel vehicles sold in the United States between 2009 and 2016 and pay $875 million in civil penalties and roughly $70.3 million in other penalties.
The data shows a slight increase in overall emissions from the previous year, and a slight decline in emissions from transportation, which is the state’s main source of both GHGs and air pollutants. California statewide GHG emissions dropped below the 2020 GHG Limit in 2016 and have remained below the 2020 GHG Limit since then.
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.
In fact, policies aimed at cutting carbon emissions improve air quality by a similar amount as policies specifically targeting air pollution. The study is the most detailed assessment to date of the interwoven effects of climate policy on the economy, air pollution, and the cost of health problems related to air pollution.
The rail sector is the only transportation modality without significant emissions related development that is feasible in the near-term to eliminate ozone, smog and GHG emissions, OptiFuel says. g/bhp-hr of NOx, a reduction of 400 times. More than 122 million people (nearly 40% of the U.S. In 2018, Class I, II, and III railroads purchased 4.7
Ethane reacts with sunlight and other molecules in the atmosphere to form ozone, which at the surface can cause respiratory problems, eye irritation and other ailments and damage crops. A snapshot from a simulation of how Bakken oil field hydrocarbon emissions including ethane affect North American ground-level ozone concentrations.
As a result, the market share of GDI-equipped vehicles has increased dramatically over the past decade and is expected to reach 50% of new gasoline vehicles sold in 2016. We estimate ozone and SOA formation potential. Organic gas emissions were the most sensitive to cold-start compared to the other pollutants tested.
The Multimedia Evaluation (MME) of E15 looked at the effects of increased ethanol content on exhaust emissions in 20 vehicles—all model year 2016 or newer. The test fleet showed statistically significant effects for some pollutants, but not for others. California currently limits the ethanol content of gasoline to 10 percent.
This workshop is the follow-up to the Hydrogen and Fuel Cells in the Ports Workshop 2016, held in Port of Los Angeles. At this year’s workshop, there will be updates from last year with presentations from ports authorities, terminal operators, trucking companies, hydrogen and fuel cell technology providers, and State funding agencies.
As part the Israeli Ministry of Environmental Protection’s (MoEP’s) action plan to reduce pollution in Haifa Bay in Israel, Israel Police are actively enforcing exclusion rules that bar heavy vehicles in downtown Haifa Bay at certain times of the day. Air pollution, Haifa. —MoEP Director General Yisrael Dancziger. Source: MoEP.
Sulfur dioxide is an air pollutant that causes acid rain, haze and many health-related problems. Two maps compare total annual sulfur dioxide amounts for India and China during 2005 (left) and 2016 based on Ozone Monitoring Instrument measurements. According to the results of the current study, these efforts are paying off.
Despite the progress that has been made to date, major reductions of criteria pollutant emissions in California are still required to achieve mandated State and federal ambient air quality standards, according to ARB. LEVII criteria pollutant emission standards (PC/LDT1 and LDT2). Category Durability basis.
The top set of recommendations call for: Replacing existing switch and medium horsepower locomotives with cleaner locomotives (2010-2013); Retrofitting switch and medium horsepower locomotive with particulate matter and oxides of nitrogen (NO x ) after-treatment devices (2012-2016); and. NO x helps create ground-level ozone, or smog.
the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, they found that the two interventions had marginal effects on air pollution, because already implemented traffic policies will reduce PM 2.5 and EC by around 40% and 60% respectively, from 2010 to 2020. in Belgium. Hooftman et al. Hooftman et al.
million shares of an almost $3 billion settlement in 2016 between the U.S. Volkswagen sold about 590,000 vehicles equipped with devices that defeated their pollution control features, leading to increased emissions of oxide. Department of Justice and Volkswagen over violations of the Clean Air Act.
The main obstacles will be regulatory and, especially, environmental: Supersonic airliners could be hugely more polluting than their subsonic counterparts. But as was true for concerns about the ozone layer back in the 1960s, proponents of supersonic commercial aviation need to consider the deleterious effects of. Boom Supersonic.
In recent years, there has been growing concern over the use of data and the potential for “data pollution," where an abundance of data storage and its subsequent use or misuse might work against the public interest. Examples include the use of Facebook's data around the 2016 U.S. military bases.
Exposure to higher ozone concentrations in the air is significantly associated with a higher risk of out-of-hospital cardiac arrest (OHCA), according to preliminary research to be presented at the American Heart Association’s Resuscitation Science Symposium 2020. Participants were age 63 years on average, 61% were men and 53% were non-white.
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.
The Draft Action Plan puts forward a single shared vision to improve the efficiency of California’s freight system while reducing its pollution, while continuing to bolster the competitiveness of California’s goods movement system nationally and internationally.
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