电磁辐射的危害（The hazards of electromagnetic radiation）.doc

电磁辐射的危害（The hazards of electromagnetic radiation） The electromagnetic wave Waves are the propagation of vibrations in space. As the sound waves in air, in the spread of the surface wave and seismic wave in the earths crust, they are all made by vibration source of the vibration propagation in elastic medium, these waves are collectively referred to as mechanical wave. Light waves, thermal radiation, microwaves, and radio waves are all transmitted by the electromagnetic oscillations emitted by the vibration source. These waves are called electromagnetic waves. 电磁波依照波长的长短以及产生电磁辐射的方式进行分类电磁波的分类范围，，，，，波长(cm)，，，，，，，频率（Hz），，，，，，波数（cm-1）无线电波，，，，30，，，，，，，，，109，，，，，，，，0.03微波，，，，，30 - 0.1，，，，，， 1 x 109 - 3 x 1011，，，，0.03-10远红外，，0.1 –5 x 10-3，，，，，，3 x 1011 –6x 1012，，，，10-200中红外，，6 x 10－3－2.5 x 10-4，，6 x 1012 - 1.2 x 1014，，，200-4,000近红外，2.5 x 10-4-7.8 x 10-5，，，1.2 x 1014 - 3.8 x 1014，，4,000-12,800可见光，7.8 x 10-5 –3.8 x 10-5，，3.8 x 1014 - 7.9 x 1014，，12,800-26,300近紫外线 3.8 x 10-5 –2 x 10-5，，，7.9 x 1014–1.5 x 1015，，26,300-50,000远紫外，2 x 10-5 –1 x 10-6，，，，1.5 x 10-15 –3 x 1016，，50,000-1x106x 射线 ，10-6 - 10-8，，，，，，，3 x 1017 –3 x 1019，，，，1x106-1x108γ 射线 ，，，10-8，，，，，，，，， 3 x 1019 ，，，，，，，1x108 Second, the electromagnetic wave to human body health on earth, all kinds of electromagnetic wave is full of human living space, radio, television, mobile communication, wireless remote control, navigation, high voltage distribution lines into the air and ground radiation powerful electromagnetic energy. High frequency hardening, welding, melting, cutting, plastic heat sealing, wood drying, electromagnetic physiotherapy, microwave treatment, microwave heating induction heating equipment, etc will launch and leak of a certain intensity of electromagnetic energy to the environment, human life in the sea of such an electronic smoke. Since the advent of electromagnetic wave pollution electronic industry, it has not only revolutionized science and technology and industrial production, but also brought con