Industrial Sources of Mercury in the Atmosphere Jim Orgeron Staff Environmental Scientist, Environmental Planning Divis - PowerPoint PPT Presentation

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Industrial Sources of Mercury in the Atmosphere Jim Orgeron Staff Environmental Scientist, Environmental Planning Divis

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  1. Industrial Sources of Mercury in the AtmosphereJim Orgeron Staff Environmental Scientist, Environmental Planning Division

  2. Mercury Deposition • Mercury emissions from man made and natural sources are released into the atmosphere • Mercury can be transported locally, regionally and/or globally in the atmosphere • A portion of the mercury eventually settles to the ground or is found in rainwater • This deposited mercury enters water bodies

  3. EPA Air Deposition Monitoring • 1999-2000 time frame • Estimates 53% of Louisiana mercury emissions are deposited in Louisiana

  4. Mercury Air Rules Which Apply to Facilities in Louisiana • Louisiana state rule (mercury is an air toxic air pollutant) • LAC 33:III.Chapter 51 • Sets control requirements and work practices for major sources only • Compliance date 12/20/1996 • Federal rules (mercuryis a hazardous air pollutant) • 40 CFR Parts 61 and 63 (MACT rules) • Sets control requirements and work practices for major sources only • A few compliance dates in the future


  5. Mercury/Mercury Compound Emissions 2003 TRI (lbs/yr) • No penalty for over-reporting • Reporting thresholds apply

  6. All Louisiana Facilities Total Actual Mercury Emissions (lbs/yr) • Emissions data from TRI reports. The TRI mercury threshold was reduced to 10 pounds in 2000.

  7. Largest Mercury Emitters Based Upon Reported TRI Air Emissions • Chloralkali Plants • 2 Plants in Louisiana report 2125 pounds of Mercury to 2003 TRI (unverified) • Both plants subject to federal MACT rule specifically targets mercury • Promulgated 12/19/2003 (68 FR 70904) • Compliance date—12/19/2006 • Estimated about 93% reduction • By product hydrogen streams • End box ventilation system vents • Mercury thermal recovery unit vents

  8. Louisiana Chloralkali Facility Total Actual Mercury Emissions (lbs/yr)

  9. Largest Mercury Emitters Based Upon Reported TRI Air Emissions (cont.) • Coal Burning Electrical Utilities • 6 Units in Louisiana reported 1434 pounds of mercury to 2003 TRI (unverified) • All units will be subject to federal MACT rule specifically targets mercury • Proposed 1/30/2004 (69 FR 4652) and 3/16/2004 (69 FR 12398) • EPA proposed control program and cap and trade program • Compliance Dates—3 years after final rule or January 1, 2010 and 2018 • Estimated 29% or 69% at 2018

  10. Louisiana Electrical Utility Facility Total Actual Mercury Emissions (lbs/yr) • Emissions data from TRI reports. The TRI mercury threshold was reduced to 10 pounds in 2000.

  11. Largest Mercury Emitters Based Upon Reported TRI Air Emissions (cont.) • Electrical Arc Furnaces • 1 Unit in Louisiana reported 451 pounds of mercury to 2003 TRI (unverified) • TRI submittal estimate based on new emission factor • Preliminary stack test results indicate emissions much lower (<20 pounds) • Unit will be subject to federal MACT • Initially delisted 6/4/1996 • Rule for area (minor) sources will be proposed (EPA memo 11/18/2002) • No timing available • No control estimate available

  12. Largest Mercury Emitters Based Upon Reported TRI Air Emissions (cont.) • Oil and Gas Facilities • 11 facilities in Louisiana report 292 pounds of mercury to 2003 TRI (unverified) • Petroleum refineries are subject to federal MACT (40 CFR Part 63 subparts CC and UUU) but the rules do not address mercury • CC in effect—UUU in effect 3/11/2005 • Major sources subject to provisions of state air toxics rule (LAC 33:III.Chapter 51)

  13. Louisiana Oil and Gas Facility Total Actual Mercury Emissions (lbs/yr) • Emissions data from TRI reports. The TRI mercury threshold was reduced to 10 pounds in 2000.

  14. Largest Mercury Emitters Based Upon Reported TRI Air Emissions (cont.) • All other sources report 215 pounds of mercury to the 2003 TRI (unverified) • Includes some pulp and paper mills and some chemical plants • 40 CFR Part 63 applies to pulp and paper mills and many chemical plants • Major sources subject to provisions of state air toxics rule (LAC 33:III.Chapter 51)

  15. Louisiana All Other Facilities Total Actual Mercury Emissions (lbs/yr) • Emissions data from TRI reports. The TRI mercury threshold was reduced to 10 pounds in 2000.

  16. Conclusions • State and federal government have rules in place to reduce mercury emissions from industrial facilities into the atmosphere • Federal government has more rules on the way • TRI indicates mercury air emissions from Louisiana less than 2.5 tons per year with a slight increase from year to year

  17. For more information regarding industrial sources of mercury in Louisiana please contact: Jim Orgeron james.orgeron@la.gov (225) 219-3578