In 2004, Mackay was invested as an Officer of the Order of Canada for having "greatly contributed to the quality and our stewardship of the global environment".[4] In 2004, he was also invested into the Order of Ontario for "his outstanding contributions to environmental science".[5]
^Buser, Andreas M; MacLeod, Matthew; Scheringer, Martin; Mackay, Don; Bonnell, Mark; Russell, Mark H; DePinto, Joseph V; Hungerbühler, Konrad (February 8, 2012). "Good modeling practice guidelines for applying multimedia models in chemical assessments". Integrated Environmental Assessment and Management. 8 (4): 703–708. Bibcode:2012IEAM....8..703B. doi:10.1002/ieam.1299. PMID22318971.