Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We...
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![Page 1: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/1.jpg)
Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern
Where Have We Been and Where Are We Going?
Patrick Gwinn
November 19, 2015
![Page 2: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/2.jpg)
Where Did Regulatory Health Risk Assessment Come From?
• Clean Air Act• Safe Drinking Water Act• CERCLA (Superfund)• Toxic Substances Control Act
• Resource Conservation & Recovery Act
• Federal Insecticide, Fungicide and Rodenticide Act
• Food Quality Protection Act
![Page 3: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/3.jpg)
Regulatory Risk Assessment
Toxicology
Analytical CapabilityExposure
Risk Assessment
![Page 4: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/4.jpg)
How Have We Done?
![Page 5: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/5.jpg)
Scale of Progress
~ 100
Chemical MCLs
![Page 6: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/6.jpg)
Scale of Progress
110 MCLs
558 chemicals in EPA’s Tox Database
(IRIS)
![Page 7: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/7.jpg)
Scale of Progress
110 MCLs
558 compounds in IRIS
~2400 compound TSCA HPV
![Page 8: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/8.jpg)
Scale of Progress
110 MCLs
558 compounds in IRIS
~2400 compound TSCA HPV
68,000,000 in commerce
![Page 9: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/9.jpg)
Scale of Progress 110 MCLs
558 compounds in IRIS
~2400 compound TSCA HPV
68,000,000 in commerce
>90,000,000 unique chemical substances
~275 ME MEGs ~165 ME Soil
![Page 10: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/10.jpg)
Contaminants of Emerging Concern
• Pharmaceuticals
• Flame retardants
• Perfluorinated Compounds
• Personal Care Products
![Page 11: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/11.jpg)
Contaminants of Emerging Concern
Pathway to environment
Real or perceived risk
Knowledge lacking or evolving No environmental standards New science New detection capabilities New exposure pathways
![Page 12: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/12.jpg)
Contaminant of Emerging Concern are…Chemicals, but also…• Physical materials
—Micro plastics—Nanoparticles
• Pathogens
• Radionuclides
www.noaa.gov
www.ngdc.noaa.gov
www.bioenergyconsult.com
![Page 13: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/13.jpg)
“Perceived Threat” is Common Concept
• Not risk, but perception of risk
Mortylefkoe.com
Toxicology
Analytical CapabilityExposure√ √
X
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Consider….
• ~ 15,000 employees in the USEPA• Assume that
—Each employee ONLY addresses safety of chemicals in commerce
—Only 10% of the 68 million chemicals currently in commerce need assessment
—All toxicity and exposure data are available
—Each assessment takes 3 months to complete
• You would need more than 100 years to complete the work!!!!
![Page 15: Regulatory Chemical Risk Assessment From Superfund to Contaminants of Emerging Concern Where Have We Been and Where Are We Going? Patrick Gwinn November.](https://reader033.fdocuments.us/reader033/viewer/2022051418/5697bfd41a28abf838cad016/html5/thumbnails/15.jpg)
Change is Needed to the Way We Assess Chemical Risk• Shorter-term
—Methods to prioritize chemicals—More tiered, faster assessments—Testing and data to support
» Users & Manufacturers» International
• Long-term—Move away from chemical-by-chemical
assessment toward classes/groups—Predictive tools for exposure, toxicity—Effects-based rather than chemical
monitoring
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Summary
• Emerging contaminants are a collective concern
• New approaches are needed to assess and ensure safety—Reauthorization of TSCA—Streamline regulatory process
• Long-term solutions rooted in new tools and assessment approaches that are still being developed