You may be allergic to things that grow in the summer, fall, winter, spring, or all of them. For some people fall is not enjoyable because weeds and molds can be contributed to allergies. If you have pollen allergies outdoor activities should be planned after 10:A.M. Mold is a fungus that billions of people have an allergy towards. Molds are microscopic fungi with spores that float in the air like pollen. If you are trying to avoid mold spores the afternoon is the time to avoid them, because spore counts peak in the afternoon. Mold is a common trigger for allergies and can be found in damp areas, such as the basement and the bathroom. Mold symptoms include sneezing, itchy watery eyes, runny nose, and coughing. Mold may survive the first frost. Warm and humid conditions encourages mold to grow. Some trees and grasses have pollinated in the fall. Some trees include cedar elm, Chinese elm, September elm, and eucalyptus. Grasses include pampas grass, fountain grass, and wild mustard.  Ragweed is another common outdoor allergy. Ragweed ends after first frost. Its pollen can be spread over 400 miles, so don’t think you’re not affected. Natural latex comes from the rubber tree Heveabrasilensis.  A report of hypersensitivity to latex has increased a lot since the first case was reported in 1979.  Many people may not realize that they may have an allergy to latex.    The allergy develops most often for people with significant cumulative latex exposure, such as those in the health care and rubber industries.  The best way to avoid this allergy is to limit ones exposure to latex.  There were sixteen deaths in 1991 which occurred in association with the use of latex barium.  This helped to increase the awareness of the risk of this allergy. The climate warming can be a problem related to allergies. The warming of the earth can make pollen allergies occur because pollen grows on trees and trees come out in warmer weather. Grass comes out in warmer climate and lots of people are very allergic to grass. The warmer climate also causes more insect bites. That happens because bees, wasps, horseflies, and other insects do not come out in cooler weather or snow. Bees don’t come out because the flowers have all dried up or been snowed on. That means that the bees cannot get pollen so they can’t make honey in the hive. Air pollution is a cause of allergies. Smoke from factories may affect your allergies. This can cause severe coughing, sneezing, and nose bleeds. Road traffic has been blamed for allergies because car exhaust is an allergen. Pollen is a major outdoor allergen. The cedar tree gives a very large amount of pollen. If you live in a desert or a place with not much trees than you probably wont have as much allergies or even not any at all. The most common season for pollen allergies is spring.