Pollution in History

Historical Pollution As the population of the world increases, pollution problems are rapidly increasing since the existence of humans began. Throughout history, it is the leading cause of diseases such as glandular plague and plague. Many measures have been taken to help solve the contamination problem, but it has not yet been completely solved. One of the earliest forms of contamination was the result of defecation. Bacteria from human feces contaminate the water supply and cause human diseases of prehistoric times.

MTBE has solved the pollution problem once, but it was one of the biggest pollution problems in history. MTBE (methyl tert-butyl ether) is a gasoline additive used in the 1970's in place of alkyl lead additives. Its role is to reduce air pollutants by burning gasoline more efficiently, but it is less soluble in water and may leak out of the gas storage tank's underground storage tank. On March 12, 1998 the New York Times wrote a title in 2028 that "Asteroids are expected to approach the Earth". This mistake was made by Mr. Brian G. Marsden of the Smithsonian Observatory Astronomical Observatory Central Astronomy and Telegraph Office, and on October 26, 2028 asteroids will enter 300 thousand miles of the earth.

Air pollution is often referred to as primary or secondary pollutant. Major pollutants are pollutants that are directly emitted into the atmosphere from people or natural sources. Examples of major pollutants are exhaust gas (gas) from automobiles, smoke from smoke, storm of dust, ash from volcanic eruption (see the left figure). Secondary pollutants are pollutants produced by chemical reactions when pollutants are mixed with other major pollutants or natural substances such as water vapor. When major pollutants react with sunlight, many secondary pollutants are produced. Ozone and smoke are secondary pollutants. Ozone is a gas that blocks the sun from harmful ultraviolet rays. But as it approaches the ground it harms people and other creatures.

When harmful substances such as particulate matter and biomolecules are taken into the atmosphere of the earth, air pollution is caused These harmful substances are called air pollutants. These contaminants may take the form of solid waste, droplets, or gas. Substances mixed in the atmosphere may have devastating effects on living things and the environment. This directly complements the cause of air pollution. Garbage incineration will undoubtedly exacerbate the current air pollution situation. According to estimates by the National Center for Atmospheric Research (NCAR), more than 40% of the world's waste is burned with such a fire, and release of gas and particulate matter has serious consequences for human health and climate change There is a possibility.