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<p>[QUOTE=&quot;doug444, post: 1618595, member: 38849&quot;]If you ignore environmental factors, you&#039;re unlikely to answer the question in a definitive sense.&nbsp; Ask the folks in East Helena, Montana:</p><p><br /></p><p>&quot;...Early results [CERCLA and EPA] of air quality and soil metals analysis confirmed the&nbsp; long-held suspicion that arsenic, lead, cadmium and other contaminants&nbsp; were accumulating in the soil and water, and were also present at high&nbsp; concentrations in <i>street and household dust</i> throughout the community of&nbsp; East Helena.&quot;[/QUOTE]</p><p><br /></p>

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