当前位置: X-MOL 学术Thorax › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Complex interplay between greenness and air pollution in respiratory health
Thorax ( IF 10 ) Pub Date : 2021-09-01 , DOI: 10.1136/thoraxjnl-2021-217272
Elaine Fuertes 1 , Debbie Jarvis 2, 3
Affiliation  

For many, it seems self-evident that a greener city improves the quality of life and health for its citizens. Epidemiological studies are providing increasing evidence that the presence and amount of vegetation around locations where one spends a lot of time (home, work and school) have numerous beneficial effects on physical and mental health, including increased longevity.1 Interestingly, the evidence supporting a positive role of vegetation on allergic and respiratory health is much weaker, possibly because of the complex role played by air pollution. Beneficial effects attributed to vegetation may be due to less air pollution, as levels tend to be lower in vegetated areas. Some vegetation types may also actively reduce air pollution levels, although the scientific consensus is that this occurs only to a limited extent.2 Air pollutants may also interact with vegetation, such as pollen,3 to influence associations with health. These mechanisms are relevant in urban settings where air pollution levels can be high. Various metrics are used to estimate ‘vegetation exposure’ in epidemiological studies. The Normalised Difference Vegetation Index (NDVI) is common and assesses surrounding levels of green vegetation, often termed ‘greenness’. The NDVI is calculated from satellite data giving the ratio of visible and near-infrared light reflection and ranges from −1 (water), 0 (barren rock) to +1 (dense green vegetation). It provides a measure …

中文翻译:

呼吸健康中绿色与空气污染之间的复杂相互作用

对许多人来说,绿色城市提高了市民的生活质量和健康似乎是不言而喻的。流行病学研究正在提供越来越多的证据表明,在人们花费大量时间(家庭、工作和学校)的地方(家庭、工作和学校)周围植被的存在和数量对身心健康有许多有益的影响,包括延长寿命。 1 有趣的是,证据支持植被对过敏和呼吸系统健康的积极作用要弱得多,这可能是由于空气污染所起的复杂作用。归因于植被的有益影响可能是由于空气污染较少,因为植被区域的水平往往较低。一些植被类型也可能积极降低空气污染水平,尽管科学共识是这仅在有限程度上发生。2 空气污染物也可能与花粉等植被相互作用 3,从而影响与健康的关联。这些机制与空气污染水平可能很高的城市环境相关。在流行病学研究中,各种指标用于估计“植被暴露”。归一化差异植被指数 (NDVI) 很常见,用于评估周围绿色植被的水平,通常称为“绿度”。NDVI 是根据卫星数据计算得出的,给出可见光和近红外光反射的比率,范围从 -1(水)、0(贫瘠的岩石)到 +1(茂密的绿色植被)。它提供了一种措施…… 在流行病学研究中,各种指标用于估计“植被暴露”。归一化差异植被指数 (NDVI) 很常见,用于评估周围绿色植被的水平,通常称为“绿度”。NDVI 是根据卫星数据计算得出的,给出可见光和近红外光反射的比率,范围从 -1(水)、0(贫瘠的岩石)到 +1(茂密的绿色植被)。它提供了一种措施…… 在流行病学研究中,各种指标用于估计“植被暴露”。归一化差异植被指数 (NDVI) 很常见,用于评估周围绿色植被的水平,通常称为“绿度”。NDVI 是根据卫星数据计算得出的,给出可见光和近红外光反射的比率,范围从 -1(水)、0(贫瘠的岩石)到 +1(茂密的绿色植被)。它提供了一种措施……
更新日期:2021-08-13
down
wechat
bug