在不同的作物和阴影条件下,农场工人相关的热量暴露
John C Flunker1, June T Spector1,2, Maria Blancas1
1Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA.
Journal of agromedicine
|June 14, 2024
概括
农业工人面临着热病的风险. 阴影结构显著降低了热量暴露,特别是在更长的休息时间和更低的努力下. 需要进一步的研究来优化工人保护战略.
科学领域:
- 职业健康 职业健康 职业健康
- 环境科学 环境科学
- 农业 农业 农业 农业
背景情况:
- 农业工人容易患上与热量有关的疾病,这是一个可以预防的职业危险.
- 现有有限的实地研究比较了不同农业工作环境中的热量暴露.
- 了解热量暴露对于为农场工人制定有效的预防策略至关重要.
研究的目的:
- 评估和比较桃和葡萄田内的不同微气候中的热暴露.
- 为农业工人制定更好的职业防热策略提供信息.
主要方法:
- 在华盛顿州东部使用湿球球体温度 (WBGT) 和黑球体温度 (BGT) 监测器测量热暴露.
- 在2022年8月的三天里,在作物排列 (中排),阴影结构下和开放场地的位置进行了测量.
- 统计模型 (LMER) 对不同地点的热暴露进行了比较,分析在各种工作休息场景下评估了职业暴露限值 (OEL).
主要成果:
- 与桃和葡萄田的开放场地相比,阴影结构显著减少了WBGT.
- 在中排和开放场地之间没有发现WBGT的显著差异.
- 与阴影区域相比,黑色球体温度 (BGT) 在中间行显著更高,表明辐射热暴露更大.
结论:
- 遮阳罩,而不是作物,有效地减少了农业工人的热量暴露.
- 随着更长的阴影休息和减少工作量,观察到保护的增加.
- 建议对阴影类型和工作休息周期进行进一步的研究,以优化工人保护,包括适应和避免高温工作.
相关概念视频
Photoreceptors and Plant Responses to Light
20.3K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
20.3K
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K
Adaptations that Reduce Water Loss
25.5K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.5K
Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
Factors Affecting Body Temperature
4.1K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
4.1K


