Discussion Post
• Discuss the reasons for air pollution regulations. Also, explain the concept of averaging time in the U.S. National Ambient Air Quality Standards (NAAQS). Finally, explain emission offsets. (200 words)
• Describe the purpose and operation of flue gas desulfurization. (200 words)
• Differentiate frequency, wavelength, loudness, and pitch. (300 words)
• Describe three methods to reduce indoor sources of noise pollution. (300 words)
The response must include a reference list. One-inch margins, double-space, Using Times New Roman 12 pnt font and APA style of writing and citations.