火灾污染物大气成分及其对葡萄牙野火季节死亡率的影响
Ediclê de Souza Fernandes Duarte1,2,3, Vanda Salgueiro1,2,3, Maria João Costa1,2,3
1Instituto de Ciências da Terra-ICT (Pólo de Évora) Instituto de Investigação e Formação Avançada (IIFA) Universidade de Évora Évora Portugal.
GeoHealth
|October 9, 2023
概括
野火季节的空气污染和天气条件对葡萄牙的心脏呼吸道死亡率产生重大影响. 更温暖,更干燥和更受污染的时期与COPD和喘等疾病有更强的关联.
科学领域:
- 环境健康 环境健康
- 公共卫生 公共卫生
- 大气科学 大气科学
背景情况:
- 野火事件会释放出可能影响人类健康的污染物.
- 了解火灾,空气质量和气象因素之间的相互作用对公共卫生至关重要.
- 心肺疾病是死亡的主要原因,环境触发因素需要调查.
研究的目的:
- 分析火灾,污染物和气象变量对葡萄牙野火季节心肺死亡率的影响.
- 确定与死亡率增加相关的特定环境条件.
- 开发指数,以便更好地理解这些复杂的相互作用.
主要方法:
- 收集了2011-2020年燃烧面积,空气污染物 (PM10,PM2.5,CO,NO2,O3),气象变量和死亡率的数据.
- 利用主要成分分析 (PCA) 来创建污染物燃烧相互作用 (PBI) 和大气污染物相互作用 (API) 指数.
- 雇员集群分析以基于PBI-API指数的数据进行分组.
- 应用主要组件线性回归来评估死亡率与开发的指数之间的相关性.
主要成果:
- 确定了两个不同的集群:集群1 (更冷,更湿,更高NO2) 和集群2 (更热,更干,更高PM10,PM2.5,CO,O3).
- 集群1显示PBI和呼吸系统疾病 (RSD) 和肺炎 (PNEU) 死亡率之间存在显著的相关性.
- 集群2在PBI和RSD,PNEU和慢性阻塞性肺病 (COPD) 死亡率之间以及在API和循环系统疾病 (CSD),RSD,PNEU和COPD死亡率之间显示出显著的相关性.
- 更温暖,更干燥,更受污染的野火季节月份 (集群2) 与心肺呼吸道死亡率的增加密切相关.
结论:
- 该研究强调了野火季节环境条件与心肺呼吸道死亡率之间的重要联系.
- 特定的天气模式 (温暖,干燥) 与高水平的空气污染相结合,带来更大的风险.
- 开发的PBI和API指数为评估与野火相关的环境健康风险提供了有用的框架.
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