ABSTRACT
This chapter deals with pollutant entry and often how the body initially deals with these entries, which are now legion. Pollutant entry and injury can take many pathways to cause chemical sensitivity and chronic degenerative disease. Pollutant entry can be through nasal–brain, pulmonary, skin, gastrointestinal or genitourinary tract. It is clearly shown that nasal cerebral, respiratory and dermal areas are the main avenue of air pollutant entry; some other routes are the gastrointestinal and genitourinary tracts. Air pollution is a multifaceted environmental toxin capable of assaulting the central nervous system through diverse pathways. Chemical pollutants, including electromagnetic frequency, can also cause single- and double-strand deoxyribonucleic acid breaks, increase permeability of the blood–brain barrier, and cause influx of calcium into cells. Pollutant and electromagnetic field stress of electrical impulses flow in brain and nerves is similar to psychological stress. The pathological changes seen in animals and patients are definite leading to end-stage disease, sensitivity, and pollutant exposure.
