0
Skip to Content
Savanna Science Consulting
Blog
Home
About
Contact
Savanna Science Consulting
Blog
Home
About
Contact
Blog
Home
About
Contact
“We’ve known PFOS was in the blood of the general population since 1975.”  My 1998 interview with a senior 3M Scientist
Kris Hansen 7/23/25 Kris Hansen 7/23/25

“We’ve known PFOS was in the blood of the general population since 1975.”  My 1998 interview with a senior 3M Scientist

Read More
3M’s use of a not-so-independent scientist to manufacture doubt: Academic Fame for Corporate Fortune
Kris Hansen 7/15/25 Kris Hansen 7/15/25

3M’s use of a not-so-independent scientist to manufacture doubt: Academic Fame for Corporate Fortune

Read More
3M’s PFOS Secret Keepers - Generations of 3M executives protected PFOS from the public
Kris Hansen 7/9/25 Kris Hansen 7/9/25

3M’s PFOS Secret Keepers - Generations of 3M executives protected PFOS from the public

Read More
When did 3M know they were releasing PFAS into the environment?No later than 1978.
Kris Hansen 7/2/25 Kris Hansen 7/2/25

When did 3M know they were releasing PFAS into the environment?No later than 1978.

Read More
Could 3M have measured PFOS in non-occupationally exposed human sera before 1997?Absolutely yes.
Kris Hansen 7/2/25 Kris Hansen 7/2/25

Could 3M have measured PFOS in non-occupationally exposed human sera before 1997?Absolutely yes.

Read More
MANUFACTURING DOUBT, 3M’s Ethical PFAS Debacle, Part III: Controlling the Narrative
Kris Hansen 1/7/24 Kris Hansen 1/7/24

MANUFACTURING DOUBT, 3M’s Ethical PFAS Debacle, Part III: Controlling the Narrative

Read More
UNDONE SCIENCE, 3M’s PFAS Ethical Debacle, Part IIb: PFOS Environmental Contamination
Kris Hansen 10/2/23 Kris Hansen 10/2/23

UNDONE SCIENCE, 3M’s PFAS Ethical Debacle, Part IIb: PFOS Environmental Contamination

Read More
UNDONE SCIENCE, 3M’s PFAS Ethical Debacle, Part IIa: PFOS Carcinogenicity
Kris Hansen 9/29/23 Kris Hansen 9/29/23

UNDONE SCIENCE, 3M’s PFAS Ethical Debacle, Part IIa: PFOS Carcinogenicity

Read More
UNSEEN SCIENCE: 3M’s PFAS              Ethical Debacle, Part I
Kris Hansen 9/28/23 Kris Hansen 9/28/23

UNSEEN SCIENCE: 3M’s PFAS Ethical Debacle, Part I

Read More
Control the Chemical or Control the Narrative? What did Industry learn from 3M’s $10 Billion Loss?
Kris Hansen 6/30/23 Kris Hansen 6/30/23

Control the Chemical or Control the Narrative? What did Industry learn from 3M’s $10 Billion Loss?

Read More
Mitigating PFAS Exposure is a Team Sport
Kris Hansen 6/1/23 Kris Hansen 6/1/23

Mitigating PFAS Exposure is a Team Sport

Read More
Minnesota Led the World into Global PFAS Contamination - Now We are Leading the Resolution
Kris Hansen 5/24/23 Kris Hansen 5/24/23

Minnesota Led the World into Global PFAS Contamination - Now We are Leading the Resolution

Read More
Challenges to Demonstrating Chronic Health Effects Associated with PFAS
Kris Hansen 4/24/23 Kris Hansen 4/24/23

Challenges to Demonstrating Chronic Health Effects Associated with PFAS

Read More
What Will PFAS-free Drinking Water Cost?
Kris Hansen 4/10/23 Kris Hansen 4/10/23

What Will PFAS-free Drinking Water Cost?

Read More
The Complexity of the Real World: a case study of PFAS in Norwegian Wildlife
Kris Hansen 4/4/23 Kris Hansen 4/4/23

The Complexity of the Real World: a case study of PFAS in Norwegian Wildlife

Read More
Challenges to Enacting the EU’s Total Weekly Intake Regulations for PFAS in Food
Kris Hansen 3/31/23 Kris Hansen 3/31/23

Challenges to Enacting the EU’s Total Weekly Intake Regulations for PFAS in Food

However necessary, it will be challenging for food producers to demonstrate compliance with the EU’s TWI limits for PFAS in food.

Read More
Summary of EPA’s 03/29/2023 Presentation: Drinking Water Professional Community Webinar on the Proposed PFAS (Perfluoralkyl Substances) National Primary Drinking Water Regulation (NPDWR)
Kris Hansen 3/29/23 Kris Hansen 3/29/23

Summary of EPA’s 03/29/2023 Presentation: Drinking Water Professional Community Webinar on the Proposed PFAS (Perfluoralkyl Substances) National Primary Drinking Water Regulation (NPDWR)

Summary of a technical webinar on proposed PFAS standards for drinking water, presented by EPA on March 29, 2023

Read More
PFAS and my community
Kris Hansen 3/23/23 Kris Hansen 3/23/23

PFAS and my community

Mapping the PFAS in my community.

Read More
Response to NYT article: How Widespread Are These Chemicals? They are Everywhere.
Kris Hansen 2/24/23 Kris Hansen 2/24/23

Response to NYT article: How Widespread Are These Chemicals? They are Everywhere.

Becoming aware of what we can’t see.

Read More
Industry’s Lack of Transparency delays Human Health Protections
Kris Hansen 5/28/19 Kris Hansen 5/28/19

Industry’s Lack of Transparency delays Human Health Protections

Industry’s sense of urgency around profits doesn’t extend to protecting the communities and the consumers they touch.

Read More

Made with Squarespace