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Analysis of Connecticut's Request for Waiver of the Reformulated Gasoline Oxygen Content Requirement for Connecticut Covered Area

By Environmental Protection Agency

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Book Id: WPLBN0000019679
Format Type: PDF eBook
File Size: 0.2 MB
Reproduction Date: 2007
Full Text

Title: Analysis of Connecticut's Request for Waiver of the Reformulated Gasoline Oxygen Content Requirement for Connecticut Covered Area  
Author: Environmental Protection Agency
Volume:
Language: English
Subject: Ecology, Natural resource issues, Environemtal protection
Collections: Environmental Awareness Library Collection
Historic
Publication Date:
Publisher: United States Environmental Protection Agency

Citation

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Agency, E. P. (n.d.). Analysis of Connecticut's Request for Waiver of the Reformulated Gasoline Oxygen Content Requirement for Connecticut Covered Area. Retrieved from http://www.worldebooklibrary.net/


Description
Excerpt: Section 211(k)(1) of the Clean Air Act (CAA) requires that the Administrator of the Environmental Protection Agency promulgate regulations establishing requirements for reformulated gasoline (RFG) to be used in gasoline-fueled vehicles in specified ozone nonattainment areas. The CAA mandates RFG use in certain nonattainment areas, based on ozone air quality and population criteria. Other ozone nonattainment areas are allowed to opt into the RFG program. Within the state of Connecticut, RFG is mandated in the Connecticut State portion of the Hartford-New Haven-Springfield Consolidated Metropolitan Statistical Area (CMSA) and the Connecticut State portion of the New York City CMSA. Parts or all of Litchfield, Hartford, Middlesex, New London, Tolland, and Windham Counties, Connecticut are an opt-in area.

Table of Contents
TABLE OF CONTENTS EXECUTIVE SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 I. BASIS FOR DEP’S REQUEST FOR A WAIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 II. GENERAL CONCLUSIONS EPA CAN MAKE ABOUT EMISSIONS BASED ON DEP’S SUBMISSION AND OTHER INFORMATION AVAILABLE . . . . . . . . . . 6 III. INFORMATION CONNECTICUT HAS PROVIDED TO EPA . . . . . . . . . . . . . . . 8 A. Information on VOC emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 B. Information on NOx emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 C. Information on CO emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 D. Information on likely oxygenated RFG composition subsequent to Connecticut’s ban on MTBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 E. Information on likely RFG composition subsequent to a waiver of the oxygen content requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 IV. INFORMATION NEEDED TO EVALUATE NOX, VOC AND CO EMISSIONS CHANGES RESULTING FROM AN OXYGEN CONTENT WAIVER . . . . . . . 12 A. Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 B. Emissions Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 C. RFG Properties and Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 V. EMISSIONS-RELATED CONCLUSIONS BASED ON CONNECTICUT’S SUBMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 A. Effect of a waiver on NOx emissions based on Connecticut’s submission . 18 1. Multiple gasoline properties affect NOx emissions . . . . . . . . . . . 18 2. NOx emissions from on-road vehicles with and without a waiver 19 3. NOx emissions from non-road vehicles with and without a waiver 20 B. Effect of a waiver on VOC emissions based on Connecticut’s submission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1. VOC on-road and non-road exhaust emissions . . . . . . . . . . . . . . . . 21 2. Evaporative VOC emissions due to RVP increases . . . . . . . . . . . . . 22 3. Evaporative VOC emissions due to permeation . . . . . . . . . . . . . . . . 23 C. Effect of a waiver on CO emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 D. Ethanol transport-related emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 VI. CONCLUSIONS OF EPA’S ANALYSIS OF DEP’S SUBMISSION . . . . . . . 25

 

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