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Environmental Pollution
California scientists link tiny particles in car exhaust to heart disease
California scientists link tiny particles in car exhaust to heart disease

A new study by California scientists has linked chronic exposure to microscopic air pollutants in vehicle exhaust to deaths from heart disease. The finding bolsters evidence that ultrafine particles, which are not regulated by state or federal environmental agencies, are a key contributor to health problems among people living near traffic. Scientists analyzed health data from 2001 to 2007 on a cohort of more than 100,000 middle-aged women across California who had worked as school teachers or administrators. They used a computer model to estimate the levels of ultrafine particles the women breathed. The authors said their study, recently published in...

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