Why is the proportion of people with hay fever so high in urban areas? –Weathernews



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03/18/2021 05:53 AM Weathernews

This spring, when the cherry blossoms bloom earlier than usual. The temperature is constantly rising as the temperature and temperature repeats every day, and the arrival of spring is just around the corner. On the other hand, the amount of pollen spread has increased and the difficult season for people with hay fever has arrived.

Cedar pollen is said to have the greatest effect on the body. However, the survey results show that urban areas, where the area of ​​sugi plantations must be small, have a higher proportion of patients with pollinosis than rural areas.

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Relationship between the proportion of people with Japanese cedar pollinosis and the proportion of artificial Japanese cedar forests

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