All whole pork cuts samples of approximately 300 g each, werepurposely collected from all 14 wet markets (n = 41) and 22 super-markets (n = 41) located in the Chiang Mai urban area (aroundthe Chiang Mai Old City area) between April 2013 and September2014. At wet markets sampling sites, two or three pork sampleswere purchased at each target location.