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
Researchers now report in ACS’ Environmental Science & Technology Letters that satellite data from before and during the spring 2020 lockdown in Los Angeles shows that vehicles, rather than agriculture, are the main source of urban airborne ammonia (NH 3 ), which forms small particles that contribute to air pollution and harm human health.
The study focuses on the period between 2005 and 2018 and tracks combustion emissions of various polluting compounds from various sectors, looking at every state in the contiguous United States, from season to season and year to year. Scientists have long known that pollution observes no boundaries, one of the prime examples being acid rain.
Thus, it is important to identify and quantify the most important human-produced sources of VOC emissions to effectively mitigate air pollution and improve human health, the authors said. Even so, lotions, paints and other products contribute about as much to air pollution as does the transportation sector. McDonald, Joost A.
The processes that create ozone pollution in the summer can also trigger the formation of wintertime air pollution, according to a new study from researchers at the University of Colorado Boulder and NOAA, in partnership with the University of Utah. —Womack et al. To combat wintertime PM 2.5
Since the 1980s, air pollution has increased worldwide, but it has increased at a much faster pace in regions close to the equator. The work provides strategic insight on where in the world to reduce emissions of pollutants that form ozone. Jason West, corresponding author. —Owen R. Cooper, co-author. Yuqiang Zhang, Owen R.
Cooking, cleaning and other routine household activities generate significant levels of volatile and particulate chemicals inside the average home, leading to indoor air quality levels on par with a polluted major city, according to a study by researchers at the University of Colorado Boulder. Earlier post.).
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. Approximately 95% of the world’s population lives in places with unsafe air.
Even so, during 2010-2014, people in parts of California, Arizona, Colorado, Texas, the Midwest and the Middle Atlantic still experienced more than 15 days a year in which ozone levels exceeded the US health-based air quality standard of 70 parts per billion (ppb) averaged over eight hours. Source: University of Leicester.
The US Environmental Protection Agency (EPA) announced $5,959,842 million in research funding to nine institutions to improve air quality models used to simulate ozone, particulate matter (PM), regional haze, air toxics, and emerging pollutants. It will also inform the development of strategies for improving air quality.
The US Department of Energy (DOE) has selected eight new projects to further advanced coal research under the University Coal Research Program. Princeton University, Princeton, NJ. University of Colorado, Boulder, Colo. Iowa State University, Ames, Iowa. University of Wisconsin, Madison, Wis.
on weekdays to an already congested road such as Interstate 10 in the Los Angeles area appends $4,500 per car in annual costs (in pollution and time) to society. Policymakers could ration HOV access via congestion pricing, which could relieve congestion and improve air pollution. While adding a single hybrid to any HOV lane at 2 a.m.
They also contribute to air pollution that harms the health of billions of people worldwide and reduces agricultural yields. Shindell, professor of climate science at Duke University’s Nicholas School of the Environment, co-authored the paper with colleagues from the Institute for Governance & Sustainable Development in Washington, D.C.;
Globally, commercial ships emit almost half as much particulate matter pollutants into the air as the total amount released by the world’s cars, according to a new study led by NOAA and the University of Colorado at Boulder. Ship pollutants affect local air quality and the health of people living along coastlines.
A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. The magnitude of the drop in VOC levels was surprising, even to researchers who expected some kind of decrease resulting from California’s longtime efforts to control vehicle pollution. ppbv/ppmv to 10.7
Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). Ozone pollution also damages crops and other plants. Scenario A2 and RCP 8.5. Ozone formation.
The surfactant chemicals found in samples of fracking fluid collected in five states were no more toxic than substances commonly found in homes, according to a first-of-its-kind analysis by researchers at the University of Colorado Boulder. —Michael Thurman, lead author.
The urban areas with the highest number of transportation-attributable air pollution in 2015 were Guangzhou, Tokyo, Shanghai, Mexico City, Cairo, New Delhi, Moscow, Beijing, London, and Los Angeles. Ambient air pollution is the leading environmental health risk factor worldwide, contributing to 3.4
A University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters. Emerging contaminants, such as wastewater polluted with medications and personal care products.
Authors of the study included: Christopher Kennedy, University of Toronto. Julia Steinberger, University of Klagenfurt. Barrie Gasson, University of Cape Town. Yvonne Hansen, University of Cape Town. Timothy Hillman, University of Colorado. Miroslav Havránek, Charles University Environment Center.
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.
JILA physicists and colleagues have identified a long-missing piece in the puzzle of exactly how fossil fuel combustion contributes to air pollution and a warming climate. JILA a partnership of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder. Their paper appears in Science.
Researchers at the University of California, Irvine and other institutions have conducted a statistical analysis of pollution exposure and yields from 1980 to 2015 on a key sector making up about 38% of the state’s total agricultural output: perennial crops such as almonds, grapes, nectarines, peaches, strawberries and walnuts.
The Energy Policy Institute at the University of Chicago (EPIC) and the University of Chinese Academy of Sciences (UCAS) announced the first research grants from the EPIC-UCAS Joint Center for Energy Policy Research in China.
Two Colorado State University (CSU) researchers have received a $325,000 National Science Foundation grant to determine the pollutant formation chemistry of algae-derived biofuels, which have potential to be high-yield, efficiently produced, renewable fuels. Anthony Marchese. Azer Yalin.
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. Gilman, Brian M.
Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. For other areas, where PM2.5 Brinkman et al. Hannigan and Jana B.
Acetaldehyde is classified as a hazardous air pollutants (HAP) regulated under Title III of the Clean Air Act Amendments. Labels at left are months (e.g., DJF = December, January, February). Credit: ACS, Millet et al. Click to enlarge.
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. We were surprised by the discrepancy between the estimates of emissions and the actual measurements of pollutants in the atmosphere.
DOE’s Advanced Research Projects Agency–Energy (ARPA-E) Reducing Emissions of Methane Every Day of the Year (REMEDY) program ( earlier post ) was unveiled earlier this year for universities and private companies focused on significantly reducing US methane emissions. Selection amount: $3,257,089). Selection amount: $1,500,000).
The team, from the Desert Research Institute, University of Colorado Boulder and NOAA, and Stanford University, began by defining a consistent vocabulary, first by jettisoning the popular umbrella label of “fracking” applied to unconventional oil and natural gas development. jobs vs environmental stewardship).
Scientists from the Karlsruhe Institute of Technology (Germany), University of Colorado Boulder, and Universidad Nacional Autónoma de México performed a “CT Scan” of the atmosphere, moving along latitudes and longitudes, measuring particle concentrations and compositions in the upper troposphere. —Neil Donahue.
Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. Determining effective strategies for mitigating surface ozone (O 3 ) pollution requires knowledge of the relative ambient concentrations of its precursors, NO x , and VOCs. Murray, L. Lamsal, L. Duncan, B., … Tonnesen, G.
the “carbon footprint” of electricity production and use), according to a new study by researchers at Carnegie Mellon University. The second highest state subsidies ($6000) are in Colorado, part of the WECC region where the LEAF is likely lower emitting than the Prius and the Volt may be higher or lower. —Tamayao et al.
This article, by researchers at PARC and the University of Washington, is one possible answer. Most of the world’s hydrogen comes from deeply polluting methods. The basic idea is to add particles of sea salt to the atmosphere to brighten clouds and cool the planet. She looked at a recent study out of the U.S.
Without smart planning, this technology could clog roads, increase pollution and further stratify mobility options. It is crucial for public officials to proactively plan for autonomous vehicles using a data-driven approach aimed at tackling specific urban area needs.
EPA’s Office of Chemical Safety and Pollution Prevention sponsors the Presidential Green Chemistry Challenge Awards in partnership with the American Chemical Society Green Chemistry Institute and other members of the chemical community including industry, trade associations, academic institutions, and other government agencies.
May, 2009 : Testifying at a public hearing conducted by the US Environmental Protection Agency (EPA), Stanford University professor Mark Jacobsen urged the EPA to incorporate black carbon into calculations of greenhouse gases. Earlier post.) and 5.0%. ” [ 21 ]. “ We are going to have Copenhagens for the rest of our lives.
A new study, led by a team from The Stockholm Environment Institute (SEI) at the University of York, has found that in 2010, about 2.7 Recent research has suggested that exposure to air pollution could also be a risk factor. exposures, inclusion of provider-initiated preterm births, and exposure to indoor air pollution.
Several global indicators on the supply of oil and the known carbon pollution environmental damages its caused all lead us to find cleaner ways of transportation. I work in the domestic Automotive industry and I’m sick of being told we are idiots because we still build cars and trucks that pollute the earth that no one wants.
Among the most articulate and almost certainly the wonkiest is Jesse Jenkins , a professor of engineering at Princeton University, where he heads the ZERO Lab—the Zero-carbon Energy systems Research and Optimization Laboratory, that is. Thousands of Washington insiders and climate activists have had a hand in these legislative breakthroughs.
As University of Michigan professor emeritus and student of system-human interactions John Leslie King observes “People find ways to use systems for their own benefit not anticipated by designers and developers. and especially California,” he says, “has come at the cost of exacerbating the air, water and soil pollution of Asian societies.”
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