RT Journal Article SR Electronic T1 On air pollution and inequalities, environmental justice, and the public health JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 1 OP 1 DO 10.1136/jech.58.1.1 VO 58 IS 1 A1 Carlos Alvarez-Dardet A1 John R Ashton YR 2004 UL http://jech.bmj.com/content/58/1/1.abstract AB