Barcelona, Spain – The city of Barcelona has launched a pioneering initiative involving the distribution of smart bracelets to monitor the body temperatures of outdoor workers. This proactive measure aims to provide an early warning system to protect workers from the severe health risks associated with extreme heatwaves striking Spain, which already caused over a thousand additional deaths this past June.
Distribution of 1,400 Smart Bracelets to High-Risk Groups
Local authorities have distributed approximately 1,400 smart bracelets to employees in sectors requiring fieldwork outdoors, including street cleaners, lighting maintenance crews, gardeners, and waste management personnel. In this context, Pep Llimona, the prevention coordinator at the Parks and Gardens Department in Barcelona, explained that this technological initiative is part of the city’s ongoing efforts to adapt to climate changes that have become increasingly severe in recent years.
How the Bracelets Work to Prevent Heat Stress
The smart bracelets rely on the continuous measurement of the worker’s body temperature. If vital signs indicating that the wearer is at risk of heat stress or that their body temperature has reached critical levels are detected, the bracelet triggers an audio alarm accompanied by a vibration for an immediate alert. Upon receiving this warning, the worker is required to stop working immediately and move to a safe, shaded area to receive necessary care, effectively contributing to the reduction of heat-related injuries and workplace accidents.
Fallout from Unprecedented Heatwaves
These preventive measures follow a number of tragic fatalities among street workers across Spain in recent years due to direct exposure to extreme heat. This prompted authorities to comprehensively review occupational safety procedures and adjust working patterns to suit harsh climatic conditions. Spain has experienced an exceptional heatwave in recent weeks, with the Spanish Meteorological Agency confirming that June 2026 was the second hottest June since climate records began. With warnings of a new heatwave expected to start early next week, the urgent need for such protective measures is further solidified.



