![]() Slowly, over the course of the day and by early evening, they tend to fall back to nose level. Peaks usually occur in the late morning when pollen particles rise with the warming air, high into the atmosphere. Pollen counts can also be higher and lower at different times of the day. Pollen is on the ground at the start of the day and rises through as grass warms up.ĭuring the course of the day, the pollen then goes very high up into the atmosphere.Īs the temperature cools down during the course of the day, the pollen grains come down to earth again and at about 6pm they tend to be back at nose level. Hay fever symptoms tend to be worst around 11am and 6pm, and this is because pollen is at nose level. The pollen season also seems to be getting longer, with a US study last year finding that it has been extended by 30 days between 19. However, dry weather blows pollen into the air, where it can easily get into the eyes and nose. Wet and rainy conditions wash pollen away, reducing the number of people suffering from symptoms and their severity. The severity of hay fever depends on the weather. Symptoms include coughing and sneezing a runny or blocked nose itchy, red or watery eyes an itchy throat, nose, mouth or ears headaches and tiredness. The reaction usually happens when pollen comes into contact with someone's eyes, nose, mouth or throat. ![]() There is more pollen in the air in the spring and summer when plants are flowering. Hay fever is an allergic reaction to pollen, a fine powder which comes from plants. ![]()
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