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.
Water. Because lichens do not have a waxy cuticle like plants, they cannot conserve water during drought periods. On the other hand, lichens can absorb everything through their cortex, including water and water vapor.Many lichens are found in foggy areas like the coast, but not farther inland simply because there is not enough water in the air to support them.ichens need clean, fresh air to survive. They absorb everything through their cortex. From beneficial nutrients to harmful toxins, lichens absorb it all. They also absorb water in the air, which is why so many are found in fog belts along oceans and big lakes.