AB 2588 Air Toxics Hot Spots Program...Air Toxics “Hot Spots” Information & Assessment Act of...
Transcript of AB 2588 Air Toxics Hot Spots Program...Air Toxics “Hot Spots” Information & Assessment Act of...
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AB 2588 Air Toxics Hot Spots ProgramMICHAEL BENJAMIN
C H I E F , A I R Q U A L I T Y P L A N N I N G & S C I E N C E D I V I S I O NC A L I F O R N I A A I R R E S O U R C E S B O A R D ( C A R B )
JUNE 28, 2019
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Overview1. An Overview of the AB 2588 Program: Background Requirements and Process Benefits of the Program
2. Proposed Rule Amendment: Proposed Updates List of Toxic Chemicals and Selection Criteria Seeking SRP’s Input Timeline
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Toxics Hot Spots Program Identifies chemicals with potential risks
Informs locations, usage, and emissions
Provides basis for OEHHA setting priorities for which specific chemicals to pursue in quantification of health effects
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Existing Chemicals468
Has Health Values240
No Health Values228
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1. An Overview of the AB 2588 Program
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BackgroundAir Toxics “Hot Spots” Information & Assessment Act of 1987 (AB 2588) and the 1992 Amendment
Public concern about potentially significant exposure to air toxics and health risks
A process was created to:◦ Collect emission data◦ Identify facilities having localized impacts ◦ Assess health risks
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AB 2588 Process
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Emission Inventory
Prioritization
Low
Intermed.
High
Not Subject to Additional Requirements
Quadrennial Inventory Update
Health Risk Assessment
Low
Intermed.
High Public Notification
Risk Reduction
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Other AB 2588 Requirements CARB: makes emission data collected under AB 2588 available to the public maintains a list of chemicals that pose chronic or acute health threats when present in the air
OEHHA: reviews health risk assessments, and prepares risk guidelines develops health values
Local Air Districts: makes health risk assessments available for public review publishes annual reports
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Benefits of the Program Reduce public health risk Inform setting priorities for toxics regulatory development Locations of sources Voluntary reductions by facilities Public right-to-know
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2. Proposed Rule Amendment
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Proposed Updates to the Toxics Hot Spots Emission Inventory Criteria and Guidelines (EICG) Update list of toxic chemicals
Update the crosswalk between emission source and toxic substances
Update the inclusion thresholds for small toxics sectors (<10 tons/year criteria pollutants)
Update incorporated references (e.g., test methods, OEHHA guidelines, CAPCOA guidelines, and modeling methods)
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List of Toxic Chemicals AB 2588 statute requires CARB to review 6 lists to develop chemical list: CARB’s Toxic Air Contaminants (TACs) US Environmental Protection Agency’s Hazardous Air Pollutants (HAPs) International Agency for Research on Cancer (IARC) list Proposition 65 list US Dept. of Health & Human Services National Toxicology Program (NTP) list CA Dept. of Public Health’s Hazard Evaluation System and Information Service (HESIS)
publications
CARB also can consider additional substances that may present a chronic or acute threat to public health
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List of Toxic Chemicals (cont.)
The Toxic Hot Spots EICG organizes chemicals into 3 lists:1. Substances for Which Emissions Must be Quantified (Appendix A-I)2. Substances for Which Production, Use or Other Presence Must be
Reported (Appendix A-II)3. Substances Which Need Not be Reported Unless Manufactured by
the Facility (e.g., pharmaceuticals) (Appendix A-III)
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Selection Criteria
1. Can the substance be airborne and be present in California? The chemical structure and properties (e.g., molecular weight and number
of carbons) help identify a substance’s potential to be airborne.
2. What is the potential toxicity? Cancer and non-cancer (chronic and acute) Special focus on carcinogen, multipathway toxins, and persistent
bioaccumulative toxics (PBTs)
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Current Status Chemical and functional
group evaluation
Working with partners: OEHHA DPR Local Air Districts
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AB 2588 Chemical List Review Count*Adding to the Emissions Must be Quantified List 449
Individual chemicals 282Adding to existing groupings 100Under new groupings 67
Adding to the Report Production/Use/Presence List 5Adding to the Report If Manufactured by Facility List** 156Misc. updates to existing chemicals 20Pending review 64Reviewed, but won’t be added to the lists 672* Counts of chemicals may be updated in the future as staff continues to make progress on chemical review and receives input during the upcoming public outreach process. ** Nearly all chemicals are pharmaceuticals.
Staff has reviewed 1366 chemicals to date
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Seeking SRP’s Input Staff is seeking SRP’s input on the chemical list review: Is the list complete? Are there other toxic chemicals that we are missing? Do you have input on the way that we are currently categorizing and
grouping chemicals?
Next Steps: August: complete draft chemical list October 4 Meeting: SRP provides staff with input
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Anticipated Rulemaking Timeline Late 2019: Public workshop
2020: Anticipated CARB board hearing
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Contact InformationAnny HuangManager, Emission Inventory Analysis Section(916) 323-8475; [email protected]
Dave EdwardsAssistant Division Chief, Air Quality Planning & Science Division(916) 323-4887; [email protected]
Michael BenjaminChief, Air Quality Planning & Science Division(916) 323-4887; [email protected]
AB 2588 Program Homepage: https://www.arb.ca.gov/ab2588/ab2588.htmEICG: https://www.arb.ca.gov/ab2588/2588guid.htm
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