BREAKING: The Mayor of London has issued a high air pollution warning linked to air currents and ongoing hot weather.
Analysts from Imperial College London advising Sadiq Khan say there are signs that the capital’s skies will contain ‘high levels of ozone’ on Tuesday.
Although no specific health warnings have been issued, it means people with certain health conditions such as asthma may be at higher risk of adverse effects.It is present in at high concentrations in the upper atmosphere, where it absorbs UV radiation, and at low concentrations in the lower atmosphere, where it is normally harmless.
Weather conditions and human activity can cause higher concentrations of ozone near ground level, which is one of the two causes of smog. This can trigger inflammation of the respiratory tract, eyes, nose and throat, as well as asthma attacks.
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