Sentences with phrase «nitrogen dioxide pollution»

CAMS maps also demonstrate ozone levels over the U.S. West Coast, nitrogen dioxide pollution over Europe, and global wildfire emissions.

Previously, if you wanted to study Criegee biradicals and how they reduce sulfur dioxide and nitrogen dioxide pollution in the atmosphere or how they make hydrocarbons spontaneously ignite, you had to do it with indirect measurements and observations.

The U.S. Environmental Protection Agency today strengthened the federal public health standard for nitrogen dioxide pollution, a limit that has been in place for nearly four decades

Not exact matches

«To ask the Secretary of State for Transport whether he has requested a derogation from EU air quality legislation in relation to limits on the levels of pollution from (a) nitrogen dioxide, (b) ozone and (c) other nitrogen oxides.

The Green Party says that London has been breaking European air pollution limits for nitrogen dioxide since 2010.

It is a map of nitrogen dioxide (NO2) pollution in the congestion charging zone, put together by Assembly Member Jenny Jones.

The risk of developing asthma was associated with increases in the levels of nitrogen dioxide and carbon monoxide found in traffic - related air pollution.

The pollution is generally a mixture of gases — such as carbon monoxide, sulfur dioxide and nitrogen oxides — and particulate matter, microscopic solids or droplets that can be inhaled into the lungs.

In a typical urban area with a high level of background air pollution — for example, around 15 micrograms of fine particulate matter (PM2.5) per cubic metre, or a nitrogen dioxide concentration around 33 micrograms per cubic metre — an extra 300 trees per square kilometre was associated with around 50 fewer emergency asthma cases per 100,000 residents over the 15 year study period.

«The morphologic changes in the right ventricle of the heart that we found with increased exposure to nitrogen dioxide add to the body of evidence supporting a connection between traffic - related air pollution and cardiovascular disease,» said Dr, Leary.

Emissions of nitrogen dioxide and sulfur dioxide, the main sources of acid rain pollution, also fell by 38 percent and 14 percent, respectively.

The catchall term «NOx gases» generally refers to two pollution - promoting gases: nitric oxide, or NO, and nitrogen dioxide, or NO2.

«Using exposure to nitrogen dioxide as a surrogate for exposure to traffic - related air pollution, we were able to demonstrate for the first time that higher levels of exposure were associated with greater right ventricular mass and larger right ventricular end - diastolic volume.

EMISSIONS of sulphur dioxide and nitrogen oxides from shipping in the English Channel are «almost equivalent to those of Denmark», according to a study of marine pollution by Lloyd's Register.

Another measure, the federal Cross-State Air Pollution Rule, will require still more expensive controls on coal plants in the Midwest and South to reduce sulfur dioxide and nitrogen oxide emissions that travel across state lines, creating ozone and fine particle pollution downwind.

In addition to trading greenhouse gases, Evolution helps broker deals for biofuels, natural gas, the uranium fuel for nuclear reactors, renewable energy credits, air pollution permits for sulfur dioxide and nitrogen oxides, even insurance against bad weather.

The clouds of pollution contain sulphur dioxide and nitrogen dioxide which are eating away the monument, leaving the marble discoloured and lustreless.

According to the World Health Organization, most significant constituents of air pollution include particulate matter (PM), ozone, nitrogen dioxide, and sulfur dioxide.

The data were collected by air pollution monitoring campaigns, and included levels of nitrogen dioxide (a prominent air pollutant caused by traffic and cigarette smoking), coarse particles, and fine particles.

These children lived in neighborhoods that, according to the U.S. Environmental Protection Agency, had excess nitrogen dioxide and tiny air pollution particles that are generated by automobiles and power plants, formally called particulate matter 2.5 (PM2.5).

The study finds that titanium dioxide coatings, seen as promising for their role in breaking down airborne pollutants on contact, are likely in real - world conditions to convert abundant ammonia to nitrogen oxide, the key precursor of harmful ozone pollution.

«We show that uptake of atmospheric NH3 (ammonia) onto surfaces containing TiO2 (titanium dioxide) is not a permanent removal process, as previously thought, but rather a photochemical route for generating reactive oxides of nitrogen that play a role in air pollution and are associated with significant health effects,» the authors write.

According to data from the U.S. Environmental Protection Agency (EPA), levels of all major air pollution contaminants (ozone, nitrogen oxides, carbon monoxide, sulfur dioxide, particulate matter and lead) are down significantly since 1970; carbon monoxide levels alone dropped by more than 70 percent.

The models suggested that levels of air pollution would fall without the government having to do much as older diesel vehicles are replaced by newer ones that emit less nitrogen dioxide.

The top 12 also included three areas of environmental concern: air pollution by oxides of nitrogen and other combustion products; the increase in carbon dioxide levels causing global warming; and urban waste.

Ecosystems need nitrogen and other nutrients to absorb carbon dioxide pollution, and there is a limited amount of it available from plants and soils.

Recently, the EU has threatened to put Britain before the European Court of Justice and handed the Government a final warning to comply with air pollution limits for nitrogen dioxide (NO2).

Usually it's not the only cause, but air pollution is a factor in at least 30,000 deaths each year in the UK, although scientists are struggling to disentangle the damage caused by nitrogen dioxide from that caused by particulates, or soot.

Of course, the plant that was closed in Tongliang lacked basic pollution control equipment to limit the emission of pollutants like carbon dioxide, sulfur dioxide, nitrogen oxide and particulate matter.

AEP will install pollution control equipment to reduce and capture sulfur dioxide (SO2) and nitrogen oxide (NOx).

The rule upheld today requires power plants in 28 states to clean up nitrogen oxide and sulfur dioxide pollution that drifts across state borders and contributes to harmful soot (particles) and smog (ozone) pollution in downwind states.

«I feel no confidence that this industry is going to embrace carbon dioxide reduction technology when they've been extremely reluctant to adopt technology that's been around for years and years to scrub other pollutants,» Peridas said, referring to grandfathering exemptions under the Clean Air Act addressing sulfur dioxide, nitrogen oxides and mercury pollution.

Reducing carbon emissions will also cut particle pollution, nitrogen oxides and sulfur dioxide by more than 25 percent.

Atmospheric nitrogen dioxide and sulfur dioxide pollution over Canada's oil sands region is comparable to... Read more →

The Ministry has added two nitrogen compounds, Nitrous oxide, a potent greenhouse gas with an effect 300 times greater than carbon dioxide; and ammonia, to previous sulphur dioxide and water pollution targets.

NOx pollution contributes to nitrogen dioxide, ground - level ozone, and fine particulate matter.

TXU also promised to cut emissions of pollutants including sulfur dioxide and nitrogen oxide and mercury by 20 percent, saying it would spend $ 500 million on equipment to control pollution at three of its existing coal - fired units in Texas.

A new report evaluating air pollution trends at the nation's 100 largest electric power producers shows that emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) have fallen markedly in recent years, but carbon dioxide (CO2) emissions increased and will likely spike in coming years.

Across Bosnia and Herzegovina, 44,000 years of life are lost each year due to particulate matter, nitrogen dioxide or ozone pollution.

India's Center for Science and Environment (CSE) reports coal is responsible for 80 % of India's mercury pollution, 60 % of airborne particulate matter, 45 % of sulphur dioxide emissions, and 30 % of nitrogen oxide levels.

While the EPA has, under the Clean Air Act put federal limits on toxic emissions of arsenic, mercury, and lead pollution that power plants emit — as well as on pollutants like sulfur dioxide and nitrogen oxides — there are currently no such limits on the carbon emissions from new or existing power plants.

Reduced air pollution from the burning of coal, including particulate matter, heavy metals, sulphur dioxide and nitrogen oxides;

On April 9, 2003 the U.S. Department of Justice and the U.S. EPA announced a settlement agreement with Alcoa Inc. for an estimated $ 330 million to install a new coal - fired power plant at its aluminum production facility in Rockdale, Texas with upgraded pollution controls to help eliminate sulfur dioxide (SO2) and nitrogen oxide (NOx) emissions.

Rights - of - way on public lands result in landscape and habitat fragmentation, while coal combustion produces a number of gaseous byproducts, including CO2, nitrogen dioxide, sulfur dioxide, and methane — which exacerbate climate change and are associated with ground - level ozone (smog), air pollution, and acid rain.

For example, according to the National Energy Technology Laboratory (NETL), a new pulverized - coal plant (operating at lower, «subcritical» temperatures and pressures) reduces the emission of NOx (nitrogen oxides) by 86 percent, SO2 (sulfur dioxide) by 98 percent, and particulate matter by 99.8 percent, as compared with a similar plant having no pollution controls.

They also benefit from the extra nitrogen and carbon dioxide that is present in air pollution.

WHO, 2003: Health aspects of air pollution with particulate matter, ozone and nitrogen dioxide.

Small - scale ocean farms have the potential to provide sustainable food and biofuel, while oysters filter nitrogen pollution and seaweed sequesters carbon dioxide.