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The researchers looked at daily pollen counts, availability of allergy specialists and over-the-counter medication use for population's in 100 of the nation's largest cities.
The report also ranked cities based on levels of different types of pollen, including tree, weed and grass pollens. Wichita, Kansas, topped the rankings in all three pollen categories. The best ...
Denver, Colorado Springs, Colorado and Dallas, Texas had the highest counts of pollen, in the first week of April. Higher levels of CO2 can boost pollen production in plants, such as grasses and ...
The combination of summer grass pollen and the confining shape of the hills around Eugene make it "the area of the highest grass pollen counts in the USA (>1,500 pollen grains/m 3 of air)." [ 67 ] These high pollen counts have led to difficulties for some track athletes who compete in Eugene.
Avoid working outdoors in the morning, when pollen counts are highest. Keep an eye on your local pollen count before heading outside. Check the wind speed in your area — wind transmits a lot of ...
The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter ( PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively).
Below is a list of 526 cities sorted by their annual mean concentration of PM2.5 (μg/m 3) in 2022. [1] [2] By default the least polluted cities which have fewest particulates in the air come first. Click on the arrows next to the table's headers to have the most polluted cities ranked first. Please note that constraints exist in this type of ...
Eugene's allergy season has lengthened significantly since 1970. This week, grass pollen counts rose to their highest levels of the year so far.