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[April Theme} Soil Pollution - Acid Rain |
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by Seoyoon Min | 10-04-2022 12:36
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In my chemistry class, I learned about acid rain and how it affects the soil. Acid rain is rain that contains high levels of nitric and sulfuric acids. It can occur in the form of snow and fog also. Normal rain is slightly acidic, with a pH of 5.6, while acid rain generally has a pH between 4.2 and 4.4. (For reference, acidity and alkalinity are measured using a pH scale for which 7.0 is neutral.) The biggest causes of acid rain are coal-burning power plants, factories, and automobiles. The rain droplets absorb air pollution like sulfur and nitrogen oxides. When acid rain reaches Earth, it flows across the surface in runoff water, enters water systems, and sinks into the soil. The acid deposits dissolve essential nutrients from the soil such as calcium before plants can use them, and cause aluminum to be released in the soil, which makes it hard for trees to take up water. The acid rain is very harmful to forests. To prevent acid rain, we must reduce the cause of air pollution by burning fewer fossil fuels. Alternatives to burning fossil fuels are renewable energy sources like hydroelectricity, wind power, and solar energy. Also, many countries are turning to clean energy from nuclear power plants. The transitioning entirely to clean energy will take some time. In the meantime, the countries should make efforts to use fewer fossil fuels and develop technology to support the use of renewable and nuclear energy. https://www.nationalgeographic.com/environment/article/acid-rain https://terrapass.com/blog/consequences-of-burning-fossil-fuels |
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3 Comments
Acid rain is a really serious problem1 Thank you for writing about it!
Posted 02-08-2022 03:00
Hello Seoyoon, this is your mentor Chelwoon.
You learned about acid rain well! There are plenty of sources discharging large amounts of sulfur and nitrogen oxides into the air. Most of them come from coal-burning power plants, because they are primary byproducts in the process of combustion in boilers. In our country, we already have proper regulations set up to limit the amount of harmful substances being discharged. Then, how can we reduce the amount of them? For instance, every coal-burning power plant has an electric precipitator system which is also a large part of power plants.
Energy is directly related to the environment. If you learn more about the energy system in Korea, you will be able to understand environmental problems more deeply.
Thank you for the article!
Regards,
Chelwoon
Posted 12-04-2022 21:35
Hello Seoyoon, this is your mentor Joon.
I did not know that acid rain could negatively affect, or even pollute, the soil before I read the article of another ambassador. Apparently, if the pH of soil increases, which means excess Hydrogen Ion exists, it combines with the metallic ions which the living organisms require. This is a serious threat however, there is no clear solutions that we could make up for the loss except for reducing the frequency of acid rain by the process that you have pointed out.
Well read your article, and let's keep up!
Best,
Joon
Posted 11-04-2022 23:54