Instead, they found high caffeine levels near Carl Washburne State Park and Cape Lookout, two areas not near the potential pollution sources, and low levels of caffeine near large population centers such as Astoria, Warrenton and Coos Bay.
Glassification of nuclear wastes also has great potential in a pollution-conscious world.
If these needed protein sources were to come primarily from livestock there is the very real potential for catastrophic pollution of water and land, not to mention the exponential increase in carbon emissions.
"The potential for a pollution incident is unknown at this time, but officials have limited concerns about any biological threats due to the length of time the vessel has been at sea, " the Coast Guard said in a statement.
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They also cited issues of potential noise, air pollution, increased traffic and a loss of privacy.
Opponents have cited the existence of a special needs school next to the site, potential noise and air pollution, the increase in lorry movements it would bring and a lack of infrastructure.
In addition to an increased potential for water and air pollution, critics say new mines would disturb large areas of land, creating breeding grounds for invasive species and harming wildlife.
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Its impact on U.S. industry was arguably overrated given our evolution toward a service economy, but the externalities of pollution limits had the potential to be unfortunate.
There has been no pollution so far but a potential danger from an oil spill remains.
Guernsey Water is investigating whether or not pollution laws have been breached because of the potential risk to the island's water supplies.
Holder said his lawyers are looking for potential violations of the Clean Water Act, The Oil Pollution Act, The Migratory Bird Treaty Act and Endangered Species Acts, and other criminal statutes.
Other concerns include potential impacts to groundwater in the event of a spill and high pollution from refineries along the Gulf Coast that would process the bitumen.
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Upper respiratory infections, pollution, head trauma and diseases including diabetes all have the potential to compromise our sense of smell.
William Hite, general president of the United Association of Plumbers and Pipe Fitters, says that while his union is "certainly concerned" about the potential for job losses, the mercury rule could also create thousands of jobs for workers who build and install pollution control equipment.
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