<http://webisa.webdatacommons.org/prov/38908796>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/112432142> .
<http://webisa.webdatacommons.org/112432142>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<federalreserve.gov> .
<http://webisa.webdatacommons.org/112432142>	<http://www.w3.org/ns/prov#value>	"For one thing, especially on the benefits side, many profound scientific uncertainties exist about the health effects of particulate matter on different individuals, in different regions of the country, and at different levels of exposure." .
<http://webisa.webdatacommons.org/112432142>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .