322 g appendix ontario toxic emissions inventory background the province of canada has prepared an air on target compounds for great lakes regional 2001 calendar year this toxics includes point area and mobile sources followed protocol source methodologies agreed upon by s technical steering committee in developing where applicable related information was collected from regulated domestic inventories statistical organizations ie statistics ministry transportation were deposited into pollution development system rapids version 2 1 4 compiled using reference tables emission factors factor retrieval fire 6 23 addition to mobtox profiles 5c used estimate mercury as part effort improve estimates identified major