Melosi Auto Emissions and Air Pollution The Santa Barbara oil spill was a dramatic reminder of the risks inherent in the search for energy resources.
More likely than not, getting a vehicle from point "A" to point "B" involves combustion of a fossil fuel, a process that emits gasses and affects the environment.
In Decemberthe U. Department of Transportation reported over See Reference 4 That number nearly tripled to over See Reference 3 Such a sharp incline in traffic volume begs the question: According to the U. Environmental Protection Agency, more than half of the air pollution in the nation is caused by mobile sources, primarily automobiles.
See Reference 6 Further contributing to the pollution potential of cars is the fact that they are filled with numerous fluids, which can harm the environment in the cases of leakage or improper disposal. Of particular concern to the environment are carbon dioxide, a greenhouse gas; hydrocarbons -- any of more than a dozen volatile organic compounds, some of which are known carcinogens; nitrogen oxides; sulfur oxides; and particulate matter, tiny particles of solids, such as metal and soot.
Other emissions that affect human health and create smog include ozone and carbon monoxide. See Reference 1 The good news is that despite the increase of vehicles on the road, air quality today is actually better than it was in the s, thanks to the Clean Air Act.
In fact, lead emissions from cars have been almost completely eradicated because of the phasing out of leaded gasoline.
See Reference 2, page 2 Effects on the Environment Vehicle emissions can affect the environment in several ways. Cars emit greenhouse gasses, such as carbon dioxide, which contribute to global warming.
See Reference 2, page 13 Some air pollutants and particulate matter from cars can be deposited on soil and surface waters where they enter the food chain; these substances can affect the reproductive, respiratory, immune and neurological systems of animals.
See Reference 5 Nitrogen oxides and sulfur oxides are major contributors to acid rain, which changes the pH of waterways and soils and can harm the organisms that rely on these resources. See Reference 7 Substances that contribute to ozone depletion usually have high concentrations of chlorine or bromine atoms and include chlorofluorocarbons, or CFCs, halons, methyl bromide, carbon tetrachloride and methyl chloroform.
Vehicle emissions contain few chlorine- or bromine-heavy substances, and therefore have little effect on ozone depletion.
Even though they are not good for human health, hydrocarbons are recognized by the EPA as having no ozone depletion potential. See Reference 8 Vehicle Fluids Vehicles contain many different fluids, including motor oil, antifreeze, gasoline, air-conditioning refrigerants, and brake, transmission, hydraulic and windshield-wiper fluids.
In most cases, these fluids are toxic to humans and animals, and can pollute waterways if they leak from a vehicle or are disposed of incorrectly. Many vehicle fluids are exposed to heat and oxygen while an engine is running, and undergo chemical changes. These fluids also pick up heavy metals from engine wear and tear, making them even more toxic to the environment.This resulted in dramatic reductions in ambient lead levels and alleviated many serious environmental and human health concerns associated with lead pollution.
The next major milestone in vehicle emission control technology came in Transportation produces almost thirty percent of all U.S. global warming emissions—but cleaner vehicles can help. John is one of the nation's first drivers to use a zero-emission, battery electric school bus.
Read more about John's work > Infographic. The Impact Of Automobile On Air Pollution Environmental Sciences Essay.
Print Reference this. Published These tests have provided us with answers to show the emissions from a car that are put into the atmosphere can be directly connected to human health issues.
Air pollution and the Environment: Health Effects of . There are many ways vehicle emissions affect human health and the environment, The effects of car pollution are widespread, affecting air, soil and water quality. There are several ways that car and truck owners can reduce the effects of car pollutants on the environment.
Old and poorly maintained vehicles cause most pollution from cars. There are several ways that car and truck owners can reduce the effects of car pollutants on the environment. Old and poorly maintained vehicles cause most pollution from cars, but electric, hybrid and other clean, fuel-efficient cars have a reduced impact.
The Automobile and the Environment in American History. by Martin V. Melosi. Auto Emissions and Air Pollution. The Santa Barbara oil spill was a dramatic reminder of the risks inherent in the search for energy resources.