Air pollution is the addition of any harmful substances (dust particles, fumes or odour) to the atmosphere, which causes the damaging of the environment, humans, animals and plant.
Air pollution can result from both human and natural actions. Natural events that pollute the air include wind erosion, volcanic eruptions, forest fires, and natural radioactivity. Pollution from natural occurrences are not very often. Human activities that result in air pollution include the burning of incomplete combustion of several fuels, such as coal, petrol and wood.
Transportation especially the car has become a key part of our lives but the car is the largest single source of air pollution in the world. …show more content…
The formation of this new energy is used by us for driving the car. For example: when you put fuel in your car, the engine burns the fuel and converts the energy produced by burning of fossil fuel to mechanical energy which results in movement of vehicle forward and which produces fumes from car exhaust which contain dangerous gases such as carbon monoxide, oxides of nitrogen, hydrocarbons and particulates which cause great harm to people who breath them and pollutes environment. And also they react with environmental gases to create further toxic gases (Secondary …show more content…
Catalytic converters work best at higher temperatures.They convert an estimated 90% of the hydrocarbons, carbon monoxide, and nitrogen oxides produced into less harmful compounds.
Catalytic converters can effectively remove hydrocarbons, carbon monoxide, and nitrous oxides from car exhaust. But they do not reduce harmful emissions of carbon dioxide (CO2), which is a greenhouse gas that contributes significantly to global warming.
Fuel cells are another technology that is in development. Hydrogen fuel cells harness the energy released when H and O come together to create H2O. Fuel cells are extremely efficient and they produce no pollutants. But developing fuel cell technology has its problems. The oxygen the fuel cell uses comes from the atmosphere, but there is no easy source of hydrogen. Natural gas is a source, but converting it into usable hydrogen decreases the efficiency of the fuel cells and increases pollution, including greenhouse gases. Natural gas also has other important