在巴西,PM2.5和O3对与热有关的心肺呼吸系统住院治疗的改变效应
Weeberb J Requia1, Heresh Amini2, Paulo Hilario Nascimento Saldiva3
1Center for Environment and Public Health Studies, School of Public Policy and Government, Fundação Getúlio Vargas Brasília, Distrito Federal, Brazil. weeberb.requia@fgv.br.
Scientific reports
|October 10, 2025
概括
极端高温对公众健康构成风险,特别是与空气污染相结合时. 细颗粒物 (PM2.5) 在巴西加剧了高温对呼吸系统健康的影响,而臭氧 (O3) 的影响则有所不同.
科学领域:
- 环境健康 环境健康
- 公共卫生 公共卫生
- 流行病学 流行病学
背景情况:
- 极端高温是全球重大健康威胁,不成比例地影响低收入和中等收入国家.
- 热暴露和空气污染对健康结果的相互作用需要进一步研究.
- 了解这些相互作用对于开发有效的公共卫生干预措施至关重要.
研究的目的:
- 调查空气污染物,特别是PM2.5和O3,如何改变巴西极端高温和因呼吸和循环系统疾病入院的相关性.
- 量化PM2.5和O3对巴西不同地区与热有关的健康风险的影响.
主要方法:
- 利用2008年至2018年巴西循环和呼吸系统疾病的每日住院数据.
- 集成的高分辨率温度数据,每天测量PM2.5和O3度.
- 采用了通用的添加模型和随机效应元分析来评估热量和空气污染物之间的相互作用.
主要成果:
- 颗粒物 (PM2.5) 显著放大了与热有关的呼吸道吸收风险,在高PM2.5条件下增加了20.1%.
- 臭氧 (O3) 呈现出可变效应,在高度下显示出国家一级的保护性关联 (降低7.6%的风险).
- 区域分析表明,巴西北部和东南部地区的热气污染相互作用更强烈.
结论:
- 在巴西,PM2.5加剧了因呼吸道疾病而因热而入院的情况.
- 臭氧对与高温相关的住院治疗的影响是复杂的,并且根据地区而异.
- 调查结果强调需要针对特定区域的定制公共卫生政策和空气质量管理战略,以减轻热量和污染风险的综合风险.
相关概念视频
Factors Affecting Pulmonary Ventilation
2.8K
Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
2.8K
Factors Affecting Respiration
9.0K
Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
9.0K
COPD: Pathogenesis and Clinical Features
1.8K
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
1.8K
COPD: Management Using Bronchodilators and Corticosteroids
726
Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
726
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
4.2K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
4.2K
Other Factors Affecting Respiration Centers
1.4K
Breathing is primarily an involuntary activity regulated by the brainstem respiratory centers. However, it can also be consciously controlled, allowing us to hold our breath or take deeper breaths when needed. This voluntary control is facilitated by the cerebral motor cortex, which bypasses the medullary centers to stimulate the respiratory muscles directly.
However, the ability to hold one's breath voluntarily is not limitless. When the CO2 concentration in the blood reaches a critical...
However, the ability to hold one's breath voluntarily is not limitless. When the CO2 concentration in the blood reaches a critical...
1.4K


