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Pollution and its effects on human health
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Botkin (2010) primary pollutants are emitted directly to air. They are chemicals released directly into the air in a harmful form and are substances directly emitted from a process, such as ash from a volcanic eruption, the carbon monoxide gas from a motor vehicle exhaust or sulfur dioxide released from factories. Once emitted into the atmosphere, some of these primary pollutants can be altered by light energy, heat or the presence of other chemicals (e.g. oxygen) to form secondary pollutants. Primary pollutants include particulates, sulphur dioxide, carbon monoxide, nitrogen oxide and hydrocarbons. Primary pollutants are those, which are emitted directly into the atmosphere from different sources such as industrial stacks, household discharges …show more content…
Nitrogen oxide (NOx) Nitrogen oxides (NOx) especially nitrogen dioxide are emitted from high temperature combustion. Nitrogen dioxide is the chemical compound with the formula NO2. It is one of the several nitrogen oxides. This reddish-brown toxic gas has a characteristic sharp, biting odor. NO2 is one of the most prominent air pollutants. Nitrogen oxides (NO and NO2, referred together as NOx) are highly reactive gases formed when oxygen and nitrogen react at high temperatures during combustion or lightning strikes. Nitrogen 7 present in fuel can also be emitted as NOx during combustion. Emissions are dominated by fossil fuel combustion at northern mid-latitudes and by biomass burning in the tropics. In the atmosphere NOx reacts with volatile organic compounds (VOCs) and carbon monoxide to produce ground-level ozone through a complicated chain reaction mechanism. It is eventually oxidized to nitric acid (HNO3). Like sulfuric acid, nitric acid contributes to acid deposition and to aerosol formation. NO2 is one of the most prominent air pollutants. Nitrogen in coal, oil, and natural gas cannot be removed prior to combustion. Thus the removal of NOx is only possible during or after combustion has occurred.
from solid or not. He is going to conduct an experiment that will tell him if
Nitrogen gas makes up about 78% of the air, and most of this gas just passes right through the car. Carbon dioxide is one of the products of combusion. The carbon in the fuel bonds with the oxygen in the air to form carbon dioxide. Water vapor is the other product of combusion. The hydrogen in the fuel bonds with the oxygen in the air to form water vapor. However, the combustion process is never perfect, so some smaller amounts of more harmful emissions are also produced in car engines. They include carbon monoxide, hydrocarbons or volatile organic compounds, and nitrogen oxides. These are the three main regulated emissions, and also the ones that catalytic converters are designed to reduce.
greenhouse gases emitted in its creation as well as use, and pollutants that cause acid rain, smog,
Gasoline, nail polish remover, felt-tip markers, and glue contain volatile solvents. Sprays that contain propellants and solvents fall under the aerosol category. Paint, deodorant, cooking products, and silver and gold spray paint are familiar aerosols. Substances that lack definite shape or volume such as refrigerants and medical anesthetics are gases. Nitrous oxide, also known as laughing gas, is abused more often than any gas. It can be obtained from whipped cream dispensers, products that boost octane levels in racing cars, balloons, or small sealed vials called whippets. Gases found in butane lighters, air c...
“The pace of global warming is accelerating and the scale of the impact is devastating.” Says American lawyer, Eliot Spitzer (Eliot). This is the most accurate statement about global warming. The environmental issue has seen an incredible escalation lately, and the effects on our environment and especially our health, are desolating. There are many readily identified and advertised effects of global warming. The obvious climate change, the pollution of air, the destruction of ecosystems, and plenty more. But those all impact the planet. And many ask “why does that matter to me?” True, those are huge effects on the planet, however they can have disastrous consequences on humans as well. If we continue to destroy our planet through global warming,
The second form of waste disposal is incineration. This type of disposal releases many air pollutants to include admium, lead, mercury, dioxin, sulfur dioxide, hydrogen chloride, nitrogen dioxide, and particulate matter according to the Environmental Protection Agency. Gases such as sulfur dioxide and nitrogen dioxide contribute to acid rain and smog. The incinerators mainly contribute to air pollution but the ash left over from burning waste has to be buried in landfills thus contributing to ground pollution too.
Coal-burning power plants are the largest U.S. source of carbon dioxide pollution. So you might wonder, what is the coal being used for? Well coal is a black sedimentary rock. It is formed from high pressure and temperatures, from organic matter that lived millions of years ago, through a process called coalification. The amount of carbon, hydrogen and oxygen in the coal are the main factors during the combustion. The carbon amount determined how much CO2 emi...
Until 10 years ago, air pollution was thought to be just an urban or local problem until it was discovered that the pollutants could move across continents and oceans. Air pollution is the fundamental factor that causes greenhouse gases, hence climate change and global warming. Air pollutants are the waste products generated from industrial and other processes. They usually come in gases, though aerosols (particles suspended in air, emitted as or formed by transformatio...
furnaces. By letting all these gases release into the air, it makes it harder to breathe.
Photochemical smog starts with certain primary pollutants which are from the combustion of fossil fuels. These are influenced by sunlight and addition of chemicals and they are transformed into secondary pollutants. Secondary pollutants are involved directly in formation of smog. NO can react with radicals produced from VOCs to form PAN. Peroxyacetyl Nitrates (PAN) are secondary pollutants, which means they are not directly emitted as exhaust from power plants or internal combustion engines, but they are formed from other pollutants by chemical reactions in the atmosphere. Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the
There are many kinds of air pollution. The ones I want to talk about are the ozone, acid rain, carbon monoxide and toxic air contaminants. Ozone is formed when hydrocarbons and nitrogen oxide react in sunlight. Therefore, ozone is at its peak during hot summer days. Exposure to high levels of ozone can have serious consequences on your health. It can cause respiratory disease, loss of pulmonary elasticity, and premature aging of our lungs. Next, is acid rain, which occurs in the atmosphere in the form of sulfur and nitrogen oxide. These pollutants can have serious damaging affects on aquatic, forest and wildlife ecosystems, as well as deterioration of buildings. Carbon monoxide is another form of pollution. It reduces the blood?s ability to carry oxygen. If a human is exposed to higher levels, it can cause chest pains, angina attacks or even death.
...rbon dioxide, hazardous chemicals, and other pollutants, which can put a hole in the ozone. Also, the usage of some mineral resources can also pollute the air; burning any kind of fuel fossils releases dangerous elements into the air, such as carbon dioxide and carbon monoxide. All of these kinds of pollution which are caused by the increase of technology, can lead to global environmental problems.
For example, if u paint a wall, the house will most likely smell making it hard to breathe.
What is pollution? Pollution is a detrimental enemy to all species that walk on earth. It is a product of mankind carbon foot print on the environment. It consists of chemicals or particles in the air that can harm the health of humans, animals, and plants. Pollution occurs when pollutants contaminate the natural surrounding; which brings about changes that affect our normal lifestyles adversely. Pollutants are the key elements of pollution which are generally waste materials of dissimilar forms. Pollution disturbs our ecosystem and the balance in the environment. With innovation and development in our lives pollution has reached its peaks; giving rise to global warming and human illness. When raw materials, water, energy and other resources
Factories and transportation depend on huge amounts of fuel--billions of tons of coal and oil are consumed around the world every year. When these fuels burn they introduce smoke and other, less visible, by-products into the atmosphere.