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Kris Hansen 10/28/25 Kris Hansen 10/28/25

When the Thieves are Guarding the Treasure

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Kris Hansen 9/29/25 Kris Hansen 9/29/25

The Elephant in the Room Part 3 (1992-1997) 3M’s work to avoid acknowledging PFOS in our blood

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Kris Hansen 9/8/25 Kris Hansen 9/8/25

3M’s Decade of PFAS Analytical Malaise, 1984-1993

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Kris Hansen 9/2/25 Kris Hansen 9/2/25

How 3M avoided taking That Obvious Next Step

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Kris Hansen 8/25/25 Kris Hansen 8/25/25

Ignorance and Misdirection: a corporate strategy for avoiding PFAS accountability

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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

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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

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Kris Hansen 7/9/25 Kris Hansen 7/9/25

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

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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.

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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.

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Kris Hansen 1/7/24 Kris Hansen 1/7/24

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

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Kris Hansen 10/2/23 Kris Hansen 10/2/23

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

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Kris Hansen 9/29/23 Kris Hansen 9/29/23

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

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Kris Hansen 9/28/23 Kris Hansen 9/28/23

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

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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?

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Kris Hansen 6/1/23 Kris Hansen 6/1/23

Mitigating PFAS Exposure is a Team Sport

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Kris Hansen 5/24/23 Kris Hansen 5/24/23

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

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Kris Hansen 4/24/23 Kris Hansen 4/24/23

Challenges to Demonstrating Chronic Health Effects Associated with PFAS

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Kris Hansen 4/10/23 Kris Hansen 4/10/23

What Will PFAS-free Drinking Water Cost?

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Kris Hansen 4/4/23 Kris Hansen 4/4/23

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

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