Energy radiation pollution

Ozone is a very important constituent of the atmosphere. At upper levels, it protects us by absorbing high-energy radiation from the sun. Near the earth s surface, it produces harmful air pollution. Write the Lewis structure for ozone, O3. 

Photocatalytic degradation of environmental pollutants by solar energy is a very attractive technology for the remediation of contaminated water [253,323], In some variants of this process, solar UV radiation is absorbed by semiconductor catalyst particles suspended in water. TiOz photocatalytic particles are the most widely used for these applications. 

The energy required to break bonds can also come from the absorption of electromagnetic radiation. As the radiation is absorbed by reactant molecules, the atoms in the molecules may start to vibrate so rapidly that the bonds between them are easily broken. In many instances, the direct absorption of electromagnetic radiation is all it takes to break chemical bonds and initiate a chemical reaction. As we discuss in Chapter 17, for example, the common atmospheric pollutant nitrogen dioxide, N02, may transform to nitrogen monoxide and atomic oxygen merely upon exposure to sunlight ... 

Ozone is formed from automobile emissions and is an urban air pollutant, but it is also formed naturally in the stratosphere. At altitudes of 20 to 30 kilometers, high-energy ultraviolet (UV) radiation breaks diatomic oxygen down to atomic oxygen, which then reacts with additional Oz to form ozone ... 

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