These include during manufacturing, vehicle operation, refueling and also disposal. Not forgetting emissions related to fuel refining and distribution. These pollutions then divide into primary and secondary pollutions. Primary pollutions are those that are emitted directly into the atmosphere while secondary are those resulting from chemical reactions between pollutants and the atmosphere. The major car associated pollutants include; particulate matter, particles of metal and soot which gives smog its murky color. They can deep penetrate into the lungs hence cause a serious risk to human health (Fenger, 2009).
Hydrocarbons are also secondary pollutants which in the presence of sunlight, reacts with nitrogen oxide to form ground-level ozone. This gas affects the respiratory system as it causes choking, coughing and reduced lungs capacity at ground level Ozone though useful in the upper atmosphere. (Fenger, 2009) Nitrogen oxide is also a pollutant that weakens the body immunity and cause lung irritation. Other pollutants which are very hazardous to human health include carbon monoxide, sulfur dioxide.
Energy sources that have no undesired consequences are called alternative energy. Examples are the nuclear energy and fossil fuels. They are renewable sources and are said to be free from the environment. Their carbon release to the environment is low down; as compared to the usual energy sources they include solar energy, wind energy, biomass energy, geothermal energy and hydroelectric energy sources. The adoption of clean alternative sources such as solar powered cars in conjunction with recycling will guarantee mans continued existence into the 21st century and beyond. (Dresslhous & Thomas, 2001) The alternative energy forms include the below.
Solar energy is one of the most use alternative sources of energy in the world. Only 30% of the sunlight meets up human demand, as 70% of it is reflected back into the space. Not