Global trade relies heavily on the transportation of goods in shipping containers. However, these containers can harbor hazardous gases. Toxic substances, such as fumigants used for disinfection and volatile organic compounds (VOCs) emitted from packaging materials and transported goods, pose significant health risks to workers, employees of inspectorates, customs officers and cargo recipients.
Employers must ensure the safety of anyone exposed to harmful gases. Effectively minimizing health and business risks requires a thorough risk assessment and the implementation of technologies that enable simultaneous, rapid and accurate measurement of multiple gases.
Sources of hazardous gases in freight containers
Toxic gases in freight containers have multiple sources:
- Fumigation: such as phosphine and methyl bromide are used to treat food, textiles, and wooden items. Residual levels can linger for weeks
- Chemical emissions from goods: VOCs, like formaldehyde or benzene, can be emitted by packaging, furniture, electronics and cleaning agents
- Previous cargo residues: may release harmful substances if containers were not properly cleaned
Incidents involving improperly secured shipping containers occur worldwide. For example, in Albania, a vessel was suspected of transporting toxic waste, highlighting the risks associated with reusing containers without proper decontamination.
Detecting contaminated freight containers
Many hazardous gases are odorless, making detection challenging. Symptoms of poisoning may appear only after several minutes of exposure to high concentrations of toxic substances. Beyond the immediate risk of poisoning, prolonged exposure to harmful gases can lead to severe health issues, including nervous system damage, respiratory difficulties and even cancer.
Risk analysis and professional measurement solutions
To ensure the safety of workers and cargo recipients, it is essential to monitor the concentration of harmful gases in freight containers before opening them. Modern technologies allow simultaneous measurement of multiple gases, ensuring fast detection of hazards and the implementation of appropriate measures.
Specialized companies offer comprehensive services in risk analysis, gas concentration measurements and safe ventilation, enabling the identification and elimination of hazardous gases. Such actions effectively minimize the risk of poisoning and prevent financial losses associated with the improper handling of dangerous cargo.
How we help reduce risk
We use cutting-edge technology to monitor multiple gas types simultaneously, providing rapid, reliable results. Whether you're a logistics manager, customs officer or safety inspector, our services help you identify hidden hazards before opening containers.
Our specialists offer end-to-end support:
- On-site gas concentration measurement
- Risk analysis tailored to your cargo and routes
- Ventilation procedures for safe container opening
- Training and guidance on safe handling practices
Prevention starts with detection
Hazardous gases in shipping containers represent a real threat with potentially severe health and environmental consequences. Fumigants, VOCs, and chemical residues can linger in enclosed spaces for extended periods, posing risks to those handling the cargo. Monitoring the internal atmosphere of containers before opening is crucial. Conducting thorough risk assessments and implementing appropriate measurement procedures are steps toward enhancing safety in the global supply chain.
If you would like to learn more about methods for monitoring air quality in containers and protection against toxic substances, contact us today.
For further information, please contact:
Marek Grzywacz
Agri Commodities
Trade and Inspection Division Manager
t: +48 691 767 446
About SGS
SGS is the world’s leading Testing, Inspection and Certification company. We operate a network of over 2,500 laboratories and business facilities across 115 countries, supported by a team of 99,500 dedicated professionals. With over 145 years of service excellence, we combine the precision and accuracy that define Swiss companies to help organizations achieve the highest standards of quality, compliance and sustainability.
Our brand promise – when you need to be sure – underscores our commitment to trust, integrity and reliability, enabling businesses to thrive with confidence. We proudly deliver our expert services through the SGS name and trusted specialized brands, including Brightsight, Bluesign, Maine Pointe and Nutrasource.
SGS is publicly traded on the SIX Swiss Exchange under the ticker symbol SGSN (ISIN CH1256740924, Reuters SGSN.S, Bloomberg SGSN:SW).
