In other words, instead of regulating the sediment directly, EPA decided that water was a pollutant.
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The first question facing the justices is whether carbon dioxide is a pollutant at all.
So, why is such a free market mechanism good for one pollutant but not another?
Jackson laid the groundwork for administrative action when she declared carbon dioxide a pollutant in 2009.
She added that London had been in breach of European guidelines for pollutant nitrogen dioxide since 2010.
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Unlike SO2, CO2 wasn't a pollutant--at least not then--and the EPA had no authority to regulate it.
"The more you look at ozone the more you understand that it is a global pollutant, " he said.
The main pollutant, sulphur dioxide, was linked to coal burning which was said to have reached exceptional levels.
The EPA is under a court order that says greenhouse gases are a pollutant that fall under their jurisdiction.
Fuel duty has also served as a useful environmental weapon, since it accurately targets a pollutant and changes behaviour.
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At ground level ozone is a dangerous pollutant, but at altitude it blocks the passage of harmful ultraviolet light.
The air pollutant regulations proposed by EPA are in response to the D.
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"Carbon tet", as it is known, is a highly toxic pollutant which is known to cause cancer and liver damage.
Well, the rise in the number of these stolen pollutant reducers is tied directly to the rise in prices of precious metals.
Also in Virginia a federal judge ruled that the EPA did not have the authority to declare storm water a pollutant.
Jackson was the first federal official to declare carbon dioxide a pollutant.
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As Eric Hobsbawm has said, terrorism is a new kind of urban pollution, and the pollutant is an insidious and chronic disquiet.
The pollutant has affected hundreds of seabirds washed up since last week.
That change, called the Maximum Achievable Control Technology, or MACT, rule requires that coal- and oil-fired power plants reduce pollutant emission rates significantly.
Efforts are continuing to discover the source of the pollutant, which has been found on hundreds of seabirds washed up since last week.
Ozone in the lower atmosphere (troposphere) is regarded as a serious pollutant that can cause respiratory problems, and even damage masonry and agricultural crops.
In fact, even the UN's Intergovernmental Panel on Climate Change acknowledges that pollutant particles reflect sunlight back into space, which has a cooling effect.
Two Surrey councils have said they will be working together to improve air quality as readings showed levels of a pollutant above government targets.
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However, on January 3, a federal court ruled that that the EPA could not treat storm water as a pollutant under the Clean Water Act.
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With capacity of 17.6 kWh the lithium-ion battery from the joint venture with Evonik Industries provides for well over 140 kilometres of pollutant-free driving fun.
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EPA, which ruled -- which ruling set in motion the scientific process to determine whether the public health was threatened by carbon dioxide as a pollutant.
The law mandates that the EPA shall regulate any pollutant from motor vehicles or power plants that may reasonably be anticipated to endanger public health or welfare.
Companies spend billions of dollars each year on decades-old generator technology and tens of billions on the diesel fuel to burn in these inefficient and high-pollutant generators.
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Mstislav, champion of this episode, reasonably pointed out that any droplet of the pollutant we exported from the Den was destined for circulation and, ultimately, our mucous membranes.
Filters remove most of the pollutant that causes acid rain, and new technology soon to be put in place will remove most of the pollutant that causes smog.
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