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Evaluate the pollution management strategy for photochemical smog - Coggle…
Evaluate the pollution management strategy for photochemical smog
Introduction
Photochemical smog
: Muture of about 100 primary and secondary pollutants formed under the influence of sunlight. Ozone is the main pollutant.
Pollution
: The release into the environment of a substance or an agent by human activities, at a rate at which it cannot be rendered harmless. Pollution ca be natural, deliberate or may be accidental. It includes the release of substances that affect air, water, and salt which reduces human quality of life
Secondary pollutants
: Pollutants formed when primary pollutants undergo a variety of reactions with other chemicals that are already present in the atmosphere. Sometimes this is a photochemical reaction in the presence of sunlight.
Photochemical smog is formed when ozone, nitrogen oxides and gaseous hydrocarbons from vehicle exhausts interact with strong sunlight.
Motor vehicle exhausts in cities is one of the main ways that contributes to the production of photochemical smog. Smog is most often formed over cities that have high humidity, surrounded by mountains and calm winds.
Photochemical smog causes harmful effects on human health. For example, it can cause eyes, nose and throat irritation, exacerbate conditions like asthma and emphysema. Smog increases the risk of respiratory infection. It is especially harmful to young children, older people and exposure in pregnant women has been linked to low birth weight and potential birth defects. Therefore, pollution management strategies are used to reduce the pollution of photochemical smog.
Conclusion
These strategies have advantages and disadvantages on the environment. Overall, regulate and reduce is the most effective pollution management strategy in reducing the photochemical smog pollution. Some of the government regulations in china, India and Europe have been successful in reducing the uses of fossil fuels and improving the air quality.
The advantages outweigh the disadvantages of other strategies including that clean up is expensive. Altering forces people.
2nd paragraph
Altering human activity
Consume and burn less fossil fuel
Use public transportation
Good in theory, and can reduce the use of fossil fuel
But hard to implement that requires a change in life style. It may force people and many are unwilling to follow.
4th paragraph
Clean up
Afforestation, add more trees
Re-greening of cities, more trees and parks that absorb CO2.
Good for environment health and effective
But it is expensive and space is limited in cities.
3rd paragraph
Regulate & Reduce
Government regulation
China: The government prohibited near coal-fuel power plants and shut down other operations in the most polluted regions. Air quality improved by 33% in Beijing and 15% on the Pearl River Delta.
India: The NCAP and Indian governments have set aside about $1.7 billion to fight air pollution. Hence, helps to reduce air pollution by 15% each year.
Europe: In late 2013, the Europe Commission adopted a proposed clean air quality package including new measures to reduce emissions and set targets to improve air quality.
Hard to enforce, needs to regularly doing the maintain, can be expensive