WHY DO PEOPLE FALL ILL AFTER FLYING ON PLANES?

Modern aircraft draw outside air through the engine's compressor section to pressurize and condition the cabin. While this air is not from the combustion chamber, synthetic engine oils and hydraulic fluids can leak past worn or failed seals into the compressor stream. This heated, contaminated air—containing organophosphates and other toxic vapors—is then mixed with recirculated cabin air and distributed throughout the aircraft.

Key Articles and Sources
"Airline cover-up: Toxic oil from jet engines poisoning passengers" (Natural Health 365): Details how the shift to bleed air systems in 1963 introduced synthetic oils containing organophosphates (used in pesticides and nerve gas) into the cabin air supply.

"Toxic Cabin Air? New Information Reveals the Potentially Neurotoxic Effects..." (Legal Examiner): Discusses how internal Boeing documents from the 1950s recognized air contamination issues and how fume events can cause immediate headaches, dizziness, and potential long-term neurotoxic effects.

"'Cancer causing aircraft'" (The Ecologist, 2024): Reports on allegations that jet-powered aircraft routinely contaminate cabin air with heated engine oil and hydraulic fluid fumes, noting that HEPA filters remove particles but not gases or vapors.

"Aerotoxic syndrome" (Wikipedia): Explains that while HEPA filters clean recirculated air, they do not filter the "bleed air" from engines, which can carry contaminants from auxiliary power units (APU) or engine seals into the environmental control system.

Industry Response and Exceptions
HEPA Filters: These hospital-grade filters capture 99.97% of particles (bacteria, viruses) from recirculated air but do not remove toxic gases from the fresh bleed air supply.

Boeing 787 Dreamliner: This aircraft is frequently cited as an exception, using an "electric bleed" system that eliminates the use of engine bleed air, thereby removing the risk of oil contamination from the engine compressors.

Official Stance: Manufacturers like Boeing and regulatory bodies like the FAA maintain that cabin air quality is safe, citing studies that compare airline air to other indoor environments, though critics argue these studies do not adequately account for low-level, chronic exposure to chemical vapors.

📱 ROBINMG