The highest value was recorded in Berendrecht, in the province of Antwerp, with 193 micrograms of ozone per cubic meter of air. The information threshold of 180 micrograms of ozone per cubic meter was also exceeded in Schoten (185). In Dessel (180), also in the province of Antwerp, this value was just reached at 6 pm.

    When the information threshold is exceeded, the population must be informed, so that everyone can protect themselves against short-term exposures to high ozone concentrations.

    People who are particularly sensitive to air pollution (such as children, the elderly or people with respiratory problems) should not engage in unusual physical activity in the open air between 12 noon and 10 p.m. Ozone concentrations indoors are on average half lower than in the open air.

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