An apple a day does not always keep the doctor away

Area of Science:

• Forensic Pathology
• Occupational Health and Safety
• Toxicology

Background:

• Workplace suicides are a serious concern, with varied methods documented.
• Modified atmosphere packaging (MAP) environments utilize specific gas mixtures (e.g., CO2, N2, O2) for preservation.
• Accidental gas intoxications in industrial settings are more commonly reported than intentional suicides.

Observation:

• A 45-year-old male was found deceased in a MAP room at a fruit and vegetable packing company.
• Air monitoring revealed elevated carbon monoxide (CO) levels, initially suggesting CO poisoning.
• Blood analysis confirmed high carbon dioxide (CO2) and normal CO levels, with no significant autopsy findings.
• A suicide note indicated personal crisis and intent.

Findings:

• The cause of death was determined to be suicide by asphyxiation due to carbon dioxide (CO2) intoxication and subsequent oxygen (O2) depletion.
• This represents the first reported case of suicide utilizing CO2 intoxication and O2 depletion within a MAP environment.
• The initial CO readings were misleading, highlighting the importance of comprehensive toxicological analysis.

Implications:

• This case underscores the potential for novel suicide methods in specialized work environments.
• It emphasizes the need for heightened awareness and safety protocols in facilities using modified atmosphere technologies.
• Forensic investigations must consider the specific environmental conditions and potential for asphyxiation by inert or non-toxic gases in cases of suspected suicide.