Sentences with phrase «sulfur dioxide pollution»

Collectively, a total of 2,011 megawatts (MW) of coal - fired power will retire as part of the settlement, removing almost 12 million tons of climate - disrupting carbon pollution and nearly 84,000 tons of sulfur dioxide pollution that the three coal - fired power plants spew into the air each year.

For each ton of sulfur dioxide pollution, or SOx, the health damage ranges from $ 6,000 to $ 50,000 per ton, with a median rate of $ 19,000.

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

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.

The Usnea harvested for our tincture is from an altitude of 5,000 feet that is isolated from sulfur dioxide pollution.

Such cap - and - trade programs have already cut acid rain — causing sulfur dioxide pollution from power plants.

While this number is higher than the previous estimate made in the late 1990s based on ground measurements, the new research includes data on more volcanoes, including some that scientists have never visited, and it is still lower than human emissions of sulfur dioxide pollution levels.

Not exact matches

Much of this fine particle pollution comes from electric power plants, either directly or as pollutants such as sulfur dioxide that chemically evolve downwind of the plant.

And all of that production means that China is bearing the burden of the pollution that can go along with the manufacture of such renewable energy for other countries — whether the acid rain — forming sulfur dioxide emitted from making the steel in a wind turbine's blade or the noxious chemicals left over after manufacturing specialized silicon, or glass, that can turn sunshine into electricity.

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.

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

That sulfur dioxide market, run by the U.S. Environmental Protection Agency (EPA), has reduced sulfur dioxide levels by 40 percent since 1992 by allowing companies to buy and sell the right to emit the acid - rain forming pollution from coal - burning plants, which has increased the acidity of lake waters throughout the region.

With many sources of pollution in some parts of the world, however, air pollution also can contain a mix of hazardous gaseous molecules, such as carbon monoxide, formaldehyde, sulfur dioxide and other volatile organic compounds.

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.

Whether it's physical shipments of the fossil fuel or the buying and selling of the permits for the pollution that burning it causes — Evolution's first trade was a sulfur dioxide allowance between Enron and Dynegy in February of 2000 — the brokerage makes its living on coal.

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.

«It is therefore reasonable to expect that precipitation extremes will continue to intensify,» although how much is still a mystery, largely thanks to an unclear understanding of the atmospheric impact of how tiny flecks of pollution in the atmosphere — known as aerosols to scientists and comprising materials ranging from soot to sulfur dioxide.

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

Air pollution control devices called scrubbers use a sprayed slurry of ground limestone and water to remove sulfur dioxide from gases formed in coal combustion, said Tom Schmaltz, environmental director for Headwaters Resources, a world leader in coal combustion products.

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.

Sulfur dioxide is a major component of particulate pollution, can cause heart and lung problems, and forms acid rain.

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.

Sulfur dioxide contributes to particulate pollution — which can be damaging for human health, and acid rain — which can damage ecosystems and crops.

Each displays the average sulfur dioxide content of the atmosphere over three years, with the brightest red showing the worst pollution levels.

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.

The main sources of air pollution — nitrous dioxide, sulfur dioxide, carbon monoxide, and lead — have all decreased between 46 percent and 92 percent since 1980 (see chart below).

For more than two decades, power companies and grid operators have met pollution control limits for sulfur dioxide and other pollutants by ramping up cleaner generation and ramping down dirty generation, using both smokestack pollution controls and pollution reduction credits.

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

Utility industry officials say they're already making major efforts to cut traditional pollution emissions, such as sulfur dioxide and nitrous oxide.

«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.

The report cited similar reliability scares evoked when the industry restructured two decades ago to allow for retail competition, as well when various emissions rules were put in place over the years for sulfur dioxide, mercury and cross-state pollution.

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

In the 1980s, tradable - permit systems were used to accomplish the phasedown of lead in gasoline -(at a savings of about $ 250 million per year), and to facilitate the phaseout of ozone - depleting chloroflourocarbons (CFCs); and in the 1990's, tradable permits were used to implement stricter air pollution controls in the Los Angeles metropolitan region, and — most important of all — a cap - and - trade system was adopted to reduce sulfur dioxide (SO2) emissions and consequent acid rain by 50 percent under the Clean Air Act amendments of 1990 (saving about $ 1 billion per year in abatement costs).

In 2005, George W. Bush's EPA issued the Clean Air Interstate Rule, aimed at achieving the largest reduction in air pollution in more than a decade, including reducing sulfur dioxide emissions by a further 70 percent from their 2003 levels.

Wirth, who helped craft a successful emissions - trading market two decades ago that cut sulfur - dioxide pollution causing acid rain, is among Democrats questioning House - passed legislation set to be taken up next month in the Senate.

would let a plant meet clean air act goals without scrubbers or other pollution control equipment,...» A coal flue scrubber removes 90 percent of the sulfur dioxide emissions from the burning of coal.

In fact, some of the progress reining in air pollution, such as the sulfur dioxide (SO2) coming out of smoke stacks, leads to serious climate tradeoffs.

And the lower - than - expected cost of sulfur dioxide regulation mostly resulted from technological changes that occurred well before the establishment of pollution trading: rail deregulation allowed for the economic shipment of low - sulfur coal, and the development of cheaper scrubbers.

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.

The bill would amend the Clean Air Act to exclude regulation of carbon dioxide, water vapor, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride pollution.

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.

Steadily improving air pollution controls have sent sulfur dioxide emissions from U.S. coal - fired power plants tumbling by more than 40 % and particulate emissions (the alleged cause of asthma) by more than 90 % since 1970, says air quality expert Joel Schwartz, even as coal use tripled.

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.

The communities along this corridor have long faced health impacts and pollution from these refineries, and the pollution is only getting worse as the refineries accept and process tar sands crude, which exposes residents to even greater levels of toxic chemicals, particulate matter, sulfur dioxide, lead, carbon dioxide, and other harmful pollutants.

The EPA's «notice of violation,» said improvements PGE made to Boardman in 1998 and 2004 boosted pollution and should have triggered expensive pollution controls for sulfur dioxide, a contributor to acid rain.

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.

This pattern of warming and cooling in the U.S. may be part of a worldwide pattern: while most of the earth has warmed, the regions that are downwind from major sources of air pollution (specifically sulfur dioxide emissions) have generally cooled (Figure 1).

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.

The Portland Generating Station was shut down in 2014 — the first EPA action to override state regulators on a single pollution source — in that case, sulfur dioxide.

That sulfur dioxide market, run by the U.S. Environmental Protection Agency (EPA), has reduced sulfur dioxide levels by 40 percent since 1992 by allowing companies to buy and sell the right to emit the acid - rain forming pollution from coal - burning plants, which has increased the acidity of lake waters throughout the region.