澳大利亚的紫外线和红外线辐射:评估好处,风险和最佳暴露指南
Kirti Sharma1, Katie M Dixon2, Gerald Münch1,3
1NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia.
Frontiers in public health
|January 2, 2025
概括
优化阳光照射需要平衡诸如维生素D生产之类的益处与DNA损伤之类的风险. 战略定时和防晒,特别是在澳大利亚,是健康的关键.
科学领域:
- 环境健康 环境健康
- 皮肤病学 皮肤病学
- 内分泌学 在内分泌学.
背景情况:
- 阳光暴露呈现出复杂的二分法,提供诸如维生素D合成和黑激素调节等必不可少的好处,同时也带来诸如氧化应激和DNA损伤等风险.
- 太阳辐射对人类健康的影响由包括吸收的特定波长 (例如近红外 (NIR) 和紫外线 (UVR)) 的因素调节,白天的时间和暴露时间.
- 优化阳光管理对公共健康至关重要,特别是在澳大利亚等太阳辐射较高的地区.
研究的目的:
- 审查太阳光谱成分,特别是NIR和UVR对人类健康的多方面的影响.
- 阐明暴露时间和持续时间对阳光有益和有害影响的影响.
- 为安全和有效的阳光照射实践提供基于证据的建议.
主要方法:
- 对研究不同太阳辐射波长的生理影响的研究进行系统的文献综述.
- 对流行病学数据的分析,将阳光照射模式与健康结果相关联.
- 评估当前关于防晒的公共卫生指南.
主要成果:
- 近红外辐射 (NIR) 有助于黑激素的产生,而UVB对维生素D的合成至关重要.
- 紫外线辐射 (UVR) 暴露会导致DNA损伤和氧化应激,当紫外线指数为3或更高时,风险会显著增加.
- 早上和晚上暴露于阳光 (紫外线指数<3) 可能会带来好处,同时最大限度地减少紫外线引起的伤害.
结论:
- 为了平衡阳光的有益和有害影响,需要了解辐射类型,暴露时间和强度之间的相互作用.
- 当紫外线指数为3或以上时采取防晒措施对于降低风险至关重要.
- 在较低紫外线指数 (<3) 的时期,对阳光的战略暴露,特别是NIR,可以帮助优化健康益处.
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