These seven (7) things are all that come to mind and I'm not sure if any, all or a combination of them could cause the lymph nodes under my jaw to become moderately sore and swollen. Again, they are not huge, hot to the touch, red, etc and there is no tracking.
Lichens and Air Pollution. One of the most common indicator species used to measure air pollution are lichens. Lichens are similar to fungi and algae, and absorb water and minerals from the air to grow on living and nonliving surfaces.As such, lichens absorb all the pollutants in the environment, and some varieties of lichen survive better in the presence of pollution than others.ichens and Air Pollution. One of the most common indicator species used to measure air pollution are lichens. Lichens are similar to fungi and algae, and absorb water and minerals from the air to grow on living and nonliving surfaces.
Public Release: 29-Mar-2011 How plants absorb pollutants. Madison, WI, MARCH 29, 2011 - The environmental concern is great when considering the role of toxic contaminants in the plant-soil relationship. Understanding plant's absorption and accumulation of these contaminants from the soil would be incredibly beneficial. One highly carcinogenic contaminant commonly found in soil is called polycyclic aromatic hydrocarbons. They are the byproduct of the incomplete combustion of coal, oil, gas, and garbage.