About: http://webisa.webdatacommons.org/308567233

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	On air quality action days, young children, the elderly and people with respiratory problems, such as asthma, emphysema and bronchitis, are especially vulnerable to the effects of air pollution and should limit outdoor activities.
http://www.w3.org/ns/prov#wasQuotedFrom	post-gazette.com