Calf Muscles. 1  The calf muscles are six in number: the gastrocnemius, the soleus, the popliteus, the tibialis posterior, the flexor digitorum longus, and the flexor hallucis longus. 2  The gastrocnemius and the soleus run between the knee and the ankle. 3  One of the calf muscles, the soleus, has a special ability.
Air pollution leads to ozone pollution and acid rain. CFC compounds, used in aerosol sprays prior to 1995, destroy the ozone layer. Ozone pollution can cause damage to human respiratory tracts. Ozone can damage the vascular system of plants.
Ozone is a toxic air pollutant that is a concern for people's health when levels in outdoor are high. Ozone is the principal component of the mixture of air pollutants known as smog that is produced from the action of sunlight on air contaminants from automobile exhausts and other sources.zone levels are most likely to be elevated after noon through early evening on hot, sunny days. The United States Environmental Protection Agency (US EPA) last revised the National Ambient Air Quality Standard (NAAQS) for ozone in 2008.