American Journal of Industrial Medicine. Vol. 56, Iss. 10, October 2013
Heat exposure in sugarcane harvesters in Costa Rica
Background Occupational heat stress is a major concern in sugarcane production and has been hypothesized as a causal factor of a chronic kidney disease epidemic in Central America. This study described working conditions of sugarcane harvesters in Costa Rica and quantified their exposure to heat.
Methods Non-participatory observation and Wet Bulb Globe Temperatures (WBGT) according to Spanish NTP (Technical Prevention Notes) guidelines were utilized to quantify the risk of heat stress. OSHA recommendations were used to identify corresponding exposure limit values.
Results Sugarcane harvesters carried out labor-intensive work with a metabolic load of 261 W/m2 (6.8 kcal/min), corresponding to a limit value of 26° WBGT which was reached by 7:30 am on most days. After 9:15 am, OSHA recommendations would require that workers only work 25% of each hour to avoid health risks from heat.
Conclusions Sugarcane harvesters are at risk for heat stress for the majority of the work shift. Immediate action is warranted to reduce such exposures.
Keywordsagricultural worker, Central America, exposure, heat stress, sugarcane
Articoli correlati che potrebbero interessarti
Electrocardiographic Responses During Fire Suppression and Recovery Among Experienced Firefighters
Journal of Occupational and Environmetal Medicine. Vol. 57, Iss. 9, September 2015
Heat Index and Adjusted Temperature as Surrogates for Wet Bulb Globe Temperature to Screen for Occupational Heat Stress
Journal of Occupational and Environmental Hygiene. Vol. 12, Iss. 5, May 2015
Whole-body vibration and the risk of low back pain and sciatica: a systematic review and meta-analysis