It's also more likely that high pollution levels will occur because heat creates the conditions for photochemical smog.
Its Ohio River basin water-quality trading project will allow those facing high pollution-control costs to buy reduction credits from those whose costs are lower.
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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But one of the biggest reasons for Phoenix's high pollution levels is actually cattle ranches found south of the city, in Pinal County and vicinity.. "Those cattle ranches are contributing a lot of fine particle pollution to the small communities near them that are part of the Phoenix metro area, but also to the tribe adjacent to it, " says Nolen.
These factors include high water temperatures, pollution, sedimentation, high light levels, reduced water levels and changes in salinity.
Local authorities have recently forbidden bathing and nautical activities due to dangerously high levels of pollution.
The impact of high air-pollution levels on long-term health weighs on Chinese and foreigners alike.
The Marine Conservation Society also found high levels of pollution at East Bay in Helensburgh, Footabrough in Shetland, and Edinburgh's Cramond Beach.
As chief executive, Mr. Leung will have to confront a raft of issues currently facing the city, including high levels of pollution, an overstretched education system and global economic headwinds.
This river and rain runoff, combined with strong onshore winds, has led to high levels of sea pollution.
Last year's fireworks sent pollution levels as high as 1, 500.
The ALA analyzed particle pollution levels two ways: short-term particle pollution, or high spikes in the level of soot and other toxins in the air that last a few hours to a few weeks, and year-round particle pollution, or the annual average of particle pollution levels.
In recent years, problems have fouled acquaculture's reputation: pollution from waste runoff, high disease and parasite rates due to a high density of fish and the uptake of industrial chemicals harmful to humans have combined to make fish less healthy to eat.
Moreover, the government is getting serious about pollution and is shutting down or pressuring high-polluting and high-water-usage industries.
In 1972 the Clean Water Act further broadened the law, as Congress became concerned about pollution and water quality, spurred by high-profile incidents such as the Cuyahoga River catching fire in 1969.
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"Fewer fireworks have helped to decrease air pollution in some Chinese cities, but high readings of air pollutants have made many wonder if greater efforts need to be made, " Xinhua news agency comments.
China Daily says public expectations are running high for the two sessions, especially on corruption, pollution, education, healthcare and social security.
Contaminated water has been abstracted and treated from the mine since 1992 following an drainage burst which caused visible pollution from mine water coloured orange by the high iron content.
This study suggests that the impact of natural fires at high latitudes must be taken into account in determining the causes of pollution.
As long as returns on fossil fuel stocks remain high (and subsidized by the lack of a price on carbon pollution), they will remain highly attractive to asset managers who must meet their duty to maximize returns.
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The high-growth countries had less, and faster-declining, water pollution than the other two categories.
But his proposals to import more mainland high-tech talent and coordinate with Guangdong province on combating cross-border pollution and developing the Pearl River delta are important first steps.
Unless action is taken now, the consequences of our activities are at a high risk of causing, through the combined effects of climate change, overexploitation, pollution and habitat loss, the next globally significant extinction event in the ocean.
While a certain amount of mercury in the environment is natural, a growing worldwide pollution, especially of our oceans, appears to be increasing the risk of high mercury levels in some of the fish we eat.
Newell worries that high oil prices will lead to the use of fuel sources that produce even greater amounts of pollution.
The ALA assessed levels of ozone pollution, more commonly known as smog, and levels of particle pollution, or air-born toxins that can potentially be lethal if inhaled at high enough levels.
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.
Ms. VICKIE PATTON (Environmental Defense): EPA has, in a number of instances, taken a step back from its proposal and instead will allow some of these high-polluting, older coal plants to continue to discharge smog-forming and haze-forming pollution at a level that doesn't really reflect what today's modern pollution control technology can, in fact, achieve.
Particle pollution is measured both short-term and long-term to account for sudden, brief events like high winds and occasional wood burning.
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