Pollution is the introduction of harmful contaminants into air, water or soil. These contaminants can have dire effects on entire ecosystems, making life more difficult for humans, plants and animals.
What Causes Pimples under the Armpits? Actually, pimples, wherever they are, are occurred due to similar causes. The causes can be sweat, dirt, dust, bacteria, hormone, your bad psychology condition and some others. Besides, the use of wrong deodorant or body soap can also be another factor if there is underarm pimple.
How To Remove Yellow Underarm Stains Dennis Grombkowski/Getty Images Armpit stains on shirts are caused by the reaction between antiperspirant ingredients and the salts in your sweat. Most antiperspirants contain aluminum compounds to reduce wetness. It is the aluminum that causes the build-up and yellowing on fabrics.