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.
The largest pollutant emitter of greenhouse gases -- the largest sector of that is used in transportation.
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.
In 2009, the EPA declared their intention to regulate carbon dioxide (we exhale this dangerous gas) as a pollutant.
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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.
No, they laugh and decree CO2, our very exhalation, as a pollutant.
No EPA administrator in history has ever considered carbon dioxide a pollutant.
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.
Carmakers have challenged the law, in part on the ground that CO2 was not an air pollutant a notion the Supreme Court has now quashed.
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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.
BBC: Air pollutants in Woking above government target levels
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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