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International study finds air pollution leads to millions of hospital visits for asthma attacks worldwide

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—Dr Johan Kuylenstierna, co-author and Policy Director of the Stockholm Environment Institute (SEI). Other key findings include: About half of the asthma emergency room visits attributed to dirty air were estimated to occur in South and East Asian countries, notably India and China. Anenberg, Daven K. Henze, Veronica Tinney, Patrick L.

Pollution 207
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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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Quantitative use of this indicator ratio is subject to three major uncertainties: (1) the split between NO x -limited and NO x -saturated conditions may shift in space and time, (2) the ratio of the vertically integrated column may not represent the near-surface environment, and (3) satellite products contain errors.

Ozone 150