My research focus­es on expo­sure to, and health effects of, envi­ron­men­tal, behav­iour­al, nutri­tion­al, and meta­bol­ic risk fac­tors and their inter­ven­tions at the pop­u­la­tion lev­el.  The research activ­i­ties rou­tine­ly com­bine con­cepts, data, and meth­ods from a range of envi­ron­men­tal, health, and quan­ti­ta­tive sci­ences with a sys­tems per­spec­tive.  We col­lect and ana­lyze pri­ma­ry field data on envi­ron­men­tal risk fac­tors (pri­mar­i­ly air pol­lu­tion).  We also devel­op and apply ana­lyt­i­cal mod­els to com­bi­na­tions of pri­ma­ry and sec­ondary data to esti­mate health effects of risk fac­tor expo­sures and inter­ven­tions.  You can learn about our past and ongo­ing stud­ies, and see their results and pub­li­ca­tions, through the Envi­ron­ment and Glob­al Health Research Group page.