Some of the common sources of nitrogen oxides include lightning bolts and car engines. Nitrogen oxides are most commonly found and formed in places with high temperature, when nitrogen chemically combines with atmospheric oxygen due to the high temperatures. Nitrogen oxides can irritate the lungs and lower resistance to respiratory infections such as influenza. The effects of short-term exposure are still unclear, but continued or frequent exposure to concentrations that are typically much higher than those normally found in the ambient air may cause increased incidence of acute respiratory illness in children. Nitrogen oxides contribute to ozone formation and can have adverse effects on both terrestrial and aquatic ecosystems. Nitrogen oxides in the air can significantly contribute to a number of environmental effects such as acid rain and eutrophication in coastal waters. Eutrophication occurs when a body of water suffers an increase in nutrients that leads to a reduction in the amount of oxygen in the water, producing an environment that is destructive to fish and other animal life. At the same time, it contributes to global warming and hampers the development of plants.
Sources of nitrogen oxides are from vehicle exhaust fumes, chemical plants and lightning. In the presence of very high temperatures nitrogen and oxygen do react together to form nitric oxide. These conditions are found in the combustion of coal and oil at electric power plants, and also during the combustion of gasoline in automobiles or from lightning bolts. All these sources contribute about equally to the formation of nitrogen oxides.
Nitrogen oxides can lead to many environmental problems such as interfering with the ability of sensitive plants to produce and store food, making them more susceptible to certain diseases, insects, other pollutants, competition and harsh weather; damaging the leaves of trees and other plants, negatively impacting the appearance of urban vegetation, as well as vegetation in national parks and recreation areas; and reducing forest growth and crop yields, potentially impacting species diversity in ecosystems. Nitrogen oxide causes a wide variety of environmental impacts because of various compounds and derivatives in the family of nitrogen oxides, including nitrogen dioxide, nitric acid, nitrous oxide, nitrates, and nitric oxide. These impacts include Ground-level Ozone (Smog), Acid Rain, Water Quality Deterioration and even Climate Change. Ground-level Ozone (Smog) - is formed when Nitrogen oxides and volatile organic compounds (VOCs) react in the presence of heat and sunlight. Nitrogen oxides and sulfur dioxide react with other substances in the air to form acids, which fall to earth as rain, fog, snow or dry particles. Increased nitrogen loading in water bodies, particularly coastal estuaries, upsets the chemical balance of nutrients used by aquatic plants and animals. One member of the Nitrogen oxides, nitrous oxide, is a greenhouse gas. It accumulates in the atmosphere with other greenhouse gasses causing a gradual rise in the earth's temperature. This will lead to increased risks to human health, a rise in the sea level, and other adverse changes to plant and animal habitat.
Some of the common sources of nitrogen oxides include lightning bolts and car engines. Nitrogen oxides are most commonly found and formed in places with high temperature, when nitrogen chemically combines with atmospheric oxygen due to the high temperatures. Nitrogen oxides can irritate the lungs and lower resistance to respiratory infections such as influenza. The effects of short-term exposure are still unclear, but continued or frequent exposure to concentrations that are typically much higher than those normally found in the ambient air may cause increased incidence of acute respiratory illness in children. Nitrogen oxides contribute to ozone formation and can have adverse effects on both terrestrial and aquatic ecosystems. Nitrogen oxides in the air can significantly contribute to a number of environmental effects such as acid rain and eutrophication in coastal waters. Eutrophication occurs when a body of water suffers an increase in nutrients that leads to a reduction in the amount of oxygen in the water, producing an environment that is destructive to fish and other animal life. At the same time, it contributes to global warming and hampers the development of plants.
ReplyDeleteBy: Group 4 (Duncan, Zhi Yuan, Joe, Ngai Chun)
Sources of nitrogen oxides are from vehicle exhaust fumes, chemical plants and lightning. In the presence of very high temperatures nitrogen and oxygen do react together to form nitric oxide. These conditions are found in the combustion of coal and oil at electric power plants, and also during the combustion of gasoline in automobiles or from lightning bolts. All these sources contribute about equally to the formation of nitrogen oxides.
ReplyDeleteNitrogen oxides can lead to many environmental problems such as interfering with the ability of sensitive plants to produce and store food, making them more susceptible to certain diseases, insects, other pollutants, competition and harsh weather; damaging the leaves of trees and other plants, negatively impacting the appearance of urban vegetation, as well as vegetation in national parks and recreation areas; and reducing forest growth and crop yields, potentially impacting species diversity in ecosystems.
Nitrogen oxide causes a wide variety of environmental impacts because of various compounds and derivatives in the family of nitrogen oxides, including nitrogen dioxide, nitric acid, nitrous oxide, nitrates, and nitric oxide. These impacts include Ground-level Ozone (Smog), Acid Rain, Water Quality Deterioration and even Climate Change. Ground-level Ozone (Smog) - is formed when Nitrogen oxides and volatile organic compounds (VOCs) react in the presence of heat and sunlight. Nitrogen oxides and sulfur dioxide react with other substances in the air to form acids, which fall to earth as rain, fog, snow or dry particles. Increased nitrogen loading in water bodies, particularly coastal estuaries, upsets the chemical balance of nutrients used by aquatic plants and animals. One member of the Nitrogen oxides, nitrous oxide, is a greenhouse gas. It accumulates in the atmosphere with other greenhouse gasses causing a gradual rise in the earth's temperature. This will lead to increased risks to human health, a rise in the sea level, and other adverse changes to plant and animal habitat.
By: Group 5 (Htoo, Qianhong, Jieling, Wangyu)