Aerotoxic Syndrome (by Dr. Michel Mulder)

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Mary-Roos Nijs
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Aerotoxic Syndrome (by Dr. Michel Mulder)

Post by Mary-Roos Nijs » 03 Nov 2017, 20:20

Meeting for active aircrew and medical personnel regarding long term effect of contaminated cabin air in jet airliners.

This presentation is an essential event for those seeking to understand the aspects of the aerotoxic syndrome, of contaminated air, the implications on their health, the flight safety implications, the latest scientific and medical evidence, investigating the contaminated air. We want to explore on the solutions available to aircrew and their airliners.

Dr. Michel Mulder is a medical doctor, specializing in aviation medicine. After qualifying as a pilot, Michel became a KLM pilot ending up on long-haul routes. At the same time he continued to practice as an aeromedical examiner on his days off. He has now seen hundreds of Aerotoxic cases. He was diagnosed with Aerotoxic syndrome himself and was grounded for medical reasons in 2006. In 2012 he diagnosed Richard Westgate as suffering the severest effects of Aerotoxic Syndrome. Since 2008 Dr. Mulder was involved in numerous research projects and co-authored scientific studies and articles, in the development of diagnostic tests and 6 post mortem studies of prematurely deceased airline personnel. He was advisor in different court cases and was seen in several documentaries on TV.

• Part 1: Presentation
• Part 2: Q&A

MORE INFO: click here or ask Mary-Roos Nijs (Brussels Airlines)
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Re: [Meeting] Aerotoxic Syndrome by Dr. Michel Mulder

Post by sn26567 » 03 Nov 2017, 20:44

Welcome to, Mary-Roos. Good luck with this meeting!
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Re: [Meeting] Aerotoxic Syndrome by Dr. Michel Mulder

Post by luchtzak » 09 Nov 2017, 08:19


Non-disclosure clause for former KLM pilot regarding toxic air on airplanes

Neurologist: KLM were "highly irresponsible" when allowing this pilot to continue to fly KLM banned former pilot Willem Felderhof, in a non-disclosure clause, from ever discussing the presence of toxic fumes on board airplanes. The pilot suffers from headaches, disrupted balance and delayed response times. His neurologist is convinced that Felderhof’s symptoms are caused by what’s known as ‘aerotoxic syndrome’, because of which he is no longer able to fly. When his contract was terminated, KLM drew up detailed non-disclosure clauses. Felderhof is prohibited from offering “his opinion, his views and the facts regarding the air quality in KLM airliners in connection with his health condition, employment conditions and ‘aerotoxic syndrome’.” Should Felderhof breach the clause, the penalty compels him to refund his severance pay of €300.000 to KLM.

The contract has come into ZEMBLA’s hands. If ‘third parties’ discuss Felderhof, he will also be required to repay his severance package in full. Doctor and former KLM pilot Michel Mulder is mentioned by name. Mulder: “It’s a one-sided ban, because I never agreed to it.” Mulder has been conducting research into airline crew who became ill after unknowingly inhaling poisonous oil fumes on board.

According to Mulder, KLM turned deaf ears to the complaints of these crew members, himself included.
KLM had this to say to ZEMBLA about the non-disclosure clause: “A settlement is designed to conclude a protracted discussion with an employee. It’s common business practice for many companies to include a confidentiality clause in their service termination contracts”.

If Mulder breaks the unilateral ban, the terms of the contract mean that KLM can oblige Felderhof to file a complaint with the medical regulatory body. According to employment lawyer Inge de Laat, such sweeping non-disclosure clauses are highly unusual.

Neurologist Gerard Hageman of the Medisch Spectrum Twente calls Willem Felderhof one of the best documented cases. The neurologist is convinced that the occupational disease is very real. Hageman: “We can name dozens of people whom we believe are suffering from aerotoxic syndrome, as it’s called.”
KLM declines to answer ZEMBLA’s questions concerning the number of employees who are too sick to work. The Dutch national cabin air advisory group, founded in 2015 by state secretary Mansveld, claims to have no idea how many people’s health might be affected. Chairman Pieter Jan Biesheuvel: “We’ve never sat down and looked at the hard figures.” ZEMBLA is privy to documents in which a KLM company doctor states that “there is a large number of employees presenting with similar symptoms.”

Reputation damaged
A doctor of the Netherlands Employees Insurance Agency, or UWV, told the KLM that in future, Felderhof should be employed in an environment that was free of organophosphates. To which KLM Health Services responded by filing a complaint with the UWV. This letter of complaint has also been passed on to ZEMBLA. In the letter, director Brinio Veldhuijzen van Zanten writes that the advice “has damaged the reputation of KLM Health Services [...].”


KLM asserts that there is no connection between the health complaints and the cabin air. Nor is the aerotoxic syndrome recognised by the Dutch government.

They base their assertion on an array of research studies. One of which was financed by KLM and partly conducted by KLM staff. Another survey was carried out by the Netherlands Centre for Occupational Diseases (NCVB). In the programme, the researcher admits that his research relates solely to the five persons who took part in the survey and not to whether or not the occupational illness exists. However, KLM uses the research findings for that very purpose: in Felderhof’s file, KLM refers to the NCVB study to bolster its claim that there is no evidence to support the existence of any such occupational disease.
After reviewing Felderhof’s journals, the NCVB researcher agrees that the former pilot’s illness is work-related.

Aerotoxic syndrome
Aerotoxic syndrome is an – as yet unacknowledged – illness that affects pilots, cabin crew and frequent flyers. The complaints range from headaches to paralysis, disrupted balance, poor memory and shaking hands. The symptoms are comparable to those caused by organophosphate poisoning. Organophosphates are toxic substances found in engine oil. Small quantities of engine oil leak into the cabin air and are unknowingly inhaled by crew and passengers. So-called ‘fume events’ have been documented – instances when a substantially higher amount of oil enters the air. The exact percentage of concentrations leaked has never been researched.

ZEMBLA examined this topic earlier, in 2010 and 2013.

Now ZEMBLA is devoting two programmes to it, airing on 8 and 15 November at 21:15 on NPO2.

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Re: [Meeting] Aerotoxic Syndrome by Dr. Michel Mulder

Post by Passenger » 04 Apr 2018, 12:26

Shocking report on Aviation Herald:

Spirit Airlines A319-100 at Boston on Jul 17th 2015, fumes on board, captain died 50 days later

A Spirit Airlines Airbus A319-100, registration N519NK performing flight NK-708 from Chicago O'Hare,IL to Boston,MA (USA), reached the top of descent into Boston when a strong odour of dirty socks occurred, both flight crew became aware of the odour. When ATC called to hand them off to the next frequency, both flight crew were unable to interprete the frequency and unable to select the new frequency until they finally managed to write it down after several repeats by air traffic control and process it from there. Operating increasingly erratically the first officer finally donned his oxygen mask, recovered a bit and recognized that the captain had sunk into his seat and was incapacitated. The first officer put the oxygen mask on the captain, too, who subsequently began to recover as well. The flight crew managed to land the aircraft without further incident, however, did not recall how they managed to land or taxi the aircraft.

Both flight crew continued two more sectors the next day after a night's rest at a hotel, then both pilots went to see doctors. The captain was diagnosed with internal bleeding and abnormal blood values consistent with ToCP poisoning. Both flight crew were sick with diarrhea, vomiting, tremors, body shakes and feeling of tiredness that began to subside only after a couple of days.

The first officer returned to duty about a week later, the captain returned to duty a couple of days after the first officer, however, was described as unconcentrated and erratic throughout the following flights developing eye-hand coordination issues and increasingly unusual behaviour.

On Sep 5th 2015, 50 days after the occurrence, the captain died. According to the captain's family the official cause of his passing was a heart attack.

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Much more info:

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Re: Aerotoxic Syndrome (by Dr. Michel Mulder)

Post by Mary-Roos Nijs » 31 Oct 2018, 09:44

A new presentation on 13 December: ... 1578149634
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Re: Aerotoxic Syndrome (by Dr. Michel Mulder)

Post by Mary-Roos Nijs » 14 Aug 2019, 11:19

New presentation on 10 October 2019

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