1996 inventory of toxic air emissions part ii mobile sources february 2000 submitted by to great lakes commission us environmental protection agency 400 fourth street region 5 ann arbor mi 48103 4816 77 west jackson blvd chicago il 60604 on behalf illinois bureau indiana department or management office michigan quality division minnesota pollution control outcomes new york conservation resources ohio ontario ministry environment monitoring and reporting branch pennsylvania wisconsin natural table contents list tables iii figures iv acronyms abbreviations vi preface viii acknowledgments x executive summary xi 1 introduction 2 methodology 4 emission estimation software rapids road non 6 aircraft 7 3 results 8 overall from all conclusions 56 references 59 appendices 60 appendix