RT Journal Article SR Electronic T1 The continuing challenge of air pollution JF Breathe JO breathe FD European Respiratory Society SP 13 OP 14 DO 10.1183/18106838.0701.013 VO 7 IS 1 A1 B. Brunekreef YR 2010 UL http://breathe.ersjournals.com/content/7/1/13.abstract AB