851 | Add to Reading ListSource URL: epa.govLanguage: English - Date: 2012-04-04 11:50:21
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852 | Add to Reading ListSource URL: www.oehha.ca.govLanguage: English - Date: 2014-03-19 20:11:11
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853 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 09:00:46
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854 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-07 07:30:24
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855 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 10:59:33
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856 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-08-28 13:43:59
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857 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-03-10 08:48:37
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858 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-03-14 14:05:58
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859 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 10:50:04
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860 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-07-17 15:43:32
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