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MassDEP Emissions Inventories

The agency prepares inventories on a periodic basis under the federal Clean Air Act and the Massachusetts Global Warming Solutions Act.
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Clean Air Act Emissions Inventories

Open PDF file, 792.78 KB,  Massachusetts 2011 Periodic Emissions Inventory: Summary (English, PDF 792.78 KB)
Open ZIP file, 38.22 MB,  Massachusetts 2011 Periodic Emissions Inventory: Complete (English, ZIP 38.22 MB)
Open PDF file, 56.81 KB,  Massachusetts 2008 Periodic Emissions Inventory: Introduction (English, PDF 56.81 KB)
Open PDF file, 137.95 KB,  Massachusetts 2008 Periodic Emissions Inventory: Data (English, PDF 137.95 KB)
Open PDF file, 21.72 KB,  Massachusetts 2005 Periodic Emissions Inventory: Introduction (English, PDF 21.72 KB)
Open PDF file, 62.2 KB,  Massachusetts 2005 Periodic Emissions Inventory: Data (English, PDF 62.2 KB)
Open PDF file, 443.44 KB,  Massachusetts 2002 Base Year Emissions Inventory (English, PDF 443.44 KB)
Open PDF file, 821.65 KB,  Tables: Massachusetts 2002 Statewide Emissions (English, PDF 821.65 KB)
Open PDF file, 243.51 KB,  Massachusetts 1996 Periodic Emissions Inventories (English, PDF 243.51 KB)
Open XLS file, 145 KB,  Tables: Massachusetts 1996 Periodic Emissions Inventories (English, XLS 145 KB)

Diesel Particulate Matter Inventories

Open PDF file, 9.32 MB,  Massachusetts 2016 Diesel Particulate Matter Inventory Report, April 2018 (English, PDF 9.32 MB)
Open XLSX file, 1.31 MB,  Massachusetts 2016 Diesel Particulate Matter Inventory Appendices 3-7, April 2018 (English, XLSX 1.31 MB)
Open ZIP file, 59.71 MB,  Massachusetts 2016 Diesel Particulate Matter Inventory MOVES Files, April 2018 (English, ZIP 59.71 MB)
Open PDF file, 517.57 KB,  Massachusetts 2002 Diesel Particulate Matter Inventory Report, September 2007 (English, PDF 517.57 KB)
Open PDF file, 1.25 MB,  Massachusetts 2002 Diesel Particulate Matter Inventory Appendices, September 2007 (English, PDF 1.25 MB)

Greenhouse Gas Baseline & Inventory

Open PDF file, 595.47 KB,  Response to Comments on the Statewide Greenhouse Gas Emissions Level: 1990 Baseline Update, and Addendum and 2nd Addendum to the Update, December 2022 (English, PDF 595.47 KB)
Open PDF file, 1.04 MB,  2nd Addendum to Statewide GHG Level: Proposed 1990 Baseline Update, June 2022 (English, PDF 1.04 MB)
Open PDF file, 1000.59 KB,  Addendum to Statewide GHG Level: Proposed 1990 Baseline Update, February 2022 (English, PDF 1000.59 KB)
Open PDF file, 1.42 MB,  Statewide Greenhouse Gas Emissions Level: Proposed 1990 Baseline Update, Including Appendices A & B, May 2021 (English, PDF 1.42 MB)
Open XLSX file, 1.95 MB,  Appendix C: Massachusetts Annual Greenhouse Gas Emissions Inventory: 1990-2022, with Partial 2023 Data (English, XLSX 1.95 MB)
Open XLS file, 1.19 MB,  Appendix D: 2001 Draft Electricity Emissions Factors (Including Imports) (English, XLS 1.19 MB)
Open XLS file, 1023.5 KB,  Appendix E: 2002 Draft Electricity Emissions Factors (Including Imports) (English, XLS 1023.5 KB)
Open XLS file, 1.05 MB,  Appendix F: 2003 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.05 MB)
Open XLS file, 1.04 MB,  Appendix G: 2004 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.04 MB)
Open XLS file, 1.27 MB,  Appendix H: 2005 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.27 MB)
Open XLS file, 1.27 MB,  Appendix I: 2006 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.27 MB)
Open XLS file, 1.27 MB,  Appendix J: 2007 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.27 MB)
Open XLS file, 1.28 MB,  Appendix K: 2008 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.28 MB)
Open XLS file, 1.29 MB,  Appendix L: 2009 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.29 MB)
Open XLS file, 1.3 MB,  Appendix M: 2010 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.3 MB)
Open XLS file, 1.31 MB,  Appendix N: 2011 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.31 MB)
Open XLS file, 1.37 MB,  Appendix O: 2012 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.37 MB)
Open XLS file, 1.41 MB,  Appendix P: 2013 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.41 MB)
Open XLS file, 1.38 MB,  Appendix Q: 2014 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.38 MB)
Open XLS file, 1.45 MB,  Appendix R: 2015 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.45 MB)
Open XLS file, 1.49 MB,  Appendix S: 2016 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.49 MB)
Open XLS file, 1.74 MB,  Appendix T: 2017 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.74 MB)
Open XLSX file, 850.92 KB,  Appendix U: 2018 Emissions from Electricity Consumed in Massachusetts (English, XLSX 850.92 KB)
Open XLSX file, 889.1 KB,  Appendix V: 2019 Emissions from Electricity Consumed in Massachusetts (English, XLSX 889.1 KB)
Open XLS file, 1.89 MB,  Appendix W: 2020 Emissions from Electricity Consumed in Massachusetts (English, XLS 1.89 MB)
Open XLSX file, 940.07 KB,  Appendix X: 2021 Emissions from Electricity Consumed in Massachusetts (English, XLSX 940.07 KB)
Open XLSX file, 1019.72 KB,  Appendix Y: 2022 Emissions from Electricity Consumed in Massachusetts (English, XLSX 1019.72 KB)
Open XLSX file, 1.02 MB,  Appendix Z: 2023 Emissions from Electricity Consumed in Massachusetts (English, XLSX 1.02 MB)
Open PDF file, 160.73 KB,  Response to Comments on Statewide GHG Emissions Baseline & Projection Update, July 2016 (English, PDF 160.73 KB)
Open PDF file, 456.97 KB,  Statewide Greenhouse Gas Emissions Baseline & Projection Update (including Appendices A & B), July 2016 (English, PDF 456.97 KB)
Open PDF file, 543.4 KB,  Statewide Greenhouse Gas Emissions Level: 1990 Baseline & 2020 Business As Usual Projection, July 2009 (English, PDF 543.4 KB)

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