The result is a declining black white exposure rate: it became increasingly difficult to increase interactions between blacks and whites because there were ever - fewer whites in the schools. (educationnext.org)
Once admitted for therapy, your cat can not be discharged until its radiation exposure rate is at or below the level determined by the state. (felinehtc.com)
Bassett added that lead exposure rates among city children fallen 87 % since 2005 and are even lower among kids in public housing. (nydailynews.com)