The pollen count is highest between 5 a.m. and 10 a.m. and again at dusk, so plan your workouts for other times of the day when pollen levels are lower. If you go out during high-pollen times, wear a face mask designed to filter out pollens.Click to see full answer. Besides, what time of day are pollen levels highest?The pollen counts are the highest between 5am and 10am, so limiting your outside exposure during those times can be extremely helpful for diminishing your allergies. Limit exposure on mornings that are especially warm and dry; these will usually be the high pollen count days.One may also ask, is pollen worse in the morning or evening? The amount of pollen in the air varies from day to day, as well as throughout the day. On an average day, pollen counts rise during the morning, peak about midday, and then gradually fall. So the lowest pollen counts are usually before dawn and in the late afternoon to early evening. Beside this, what time of day do trees release pollen? Starting March to mid-May, trees release pollen spores most often between noon and 6 p.m. With trees like elm, willow, oak, hickory, maple, cedar, ash, beech and birch causing the most asthma symptoms. As we head into summer, mid-May to July, grass pollens take over.Do pollen levels decrease at night?For the majority of pollen types investigated (i.e. alder, grass and mugwort), mean pollen levels were significantly lower at night. Mugwort recorded very low night-time pollen concentrations; the mean and maximum Artemisia pollen levels were significantly lower during night than during the day (p < 0.000).