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Stronger evidence pollution damages heart: report
WASHINGTON |
WASHINGTON (Reuters) - The evidence is stronger than ever that pollution from industry, traffic and power generation causes strokes and heart attacks, and people should avoid breathing in smog, the American Heart Association said on Monday.
Fine particulate matter from burning fossil fuels such as gasoline, coal and oil is the clearest offender, the group said.
"Particulate matter appears to directly increase risk by triggering events in susceptible individuals within hours to days of an increased level of exposure, even among those who otherwise may have been healthy for years," said Dr. Robert Brook of the University of Michigan in Ann Arbor, who headed the group writing the report.
A review of six year's worth of medical research also showed strong evidence that pollution can help clog arteries, and a "small yet consistent" association between short-term exposure to air pollution and premature death.
"The foremost message for these high-risk groups remains that they should work to control their modifiable traditional risk factors -- blood pressure, cholesterol, diabetes, smoking," Brook said.
The American Heart Association said fine particulates could work in several ways, including by causing inflammation.
"It's possible that certain very small particles, or chemicals that travel with them, may reach the circulation and cause direct harm," Brook said.
"These responses can increase blood clotting and thrombosis, impair vascular function and blood flow, elevate blood pressure, and disrupt proper cardiac electrical activity which may ultimately provoke heart attacks, strokes, or even death."
The group recommends that the elderly or anyone with heart disease, high blood pressure, high cholesterol, or diabetes should pay attention to air pollution and air quality index warnings.
"People can limit their exposure as much as possible by decreasing their time outside when particle levels are high and reducing time spent in traffic -- a common source of exposure in today's world," Brook said.
(Editing by Eric Beech)
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For example, Progressives have touted ethanol, which dramatically increases ground-level ozone. And ozone kills. The WA State Dept of Ecology stated in 2008 that any more than 2% ethanol in the fuel supply means Seattle doesn’t meet EPA Ozone Attainment levels.
Growing food for fuel means dramatically increased levels of N2O (298X worse than CO2 as a GWG) from the fertilizer.
Ethanol also damages or destroys many of America’s 300 million open cycle engines, which means we have to buy replacements (from China), and/or discard equipment in landfills. www.opei.org/ht/a/GetDocumentAction/i/1926.
Ethanol also makes equipment run poorly because ethanol has an extra oxygen molecule that throws the sensors off of vehicles. www.nytimes.com/2010/05/05/business/energy-environment/05ethanol.html?src=busln. That means more dirty exhaust.
Progressives push green technology but fail to realize the environmental cost of mining and processing the rare earth elements (REE) required for those technologies. It takes about 538 pounds of neodymium to make a large windmill. The Chinese who have a monopoly of most REEs use a very polluting process to create the REEs. To understand why ‘green’ technology is held hostage by China, read: China’s Rare Earth Elements Industry: What Can the West Learn, a report by the Institute for the Analysis of Global Security (IAGS) www.iags.org/rareeartIAGSh0310hurst.pdf.
Its unfortunate the most journalists don’t read beyond the press release.
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