Noise: Low Frequency Noise

• “Type of environmental noise characterized by sound waves 20 - 200 Hz.
• Distinctive environmental noise issue that affects many households
• Natural sources of LFN:
• Wind, thunder, lightning, waves, earthquakes, and volcanic eruptions,

• Artificial sources of LFN:

• Life-related noise
• (e.g., air conditioning, power distribution equipment, elevators, and fans)
• Traffic noise
• (e.g., railways and aviation)
• Industrial enterprise noise
• (e.g., substations, wind farms, and converter stations) (Liang, et al., 2023)

(Liang, et al., 2023)

• Construction noise
• (e.g., piling and decoration).

• As LFN becomes more prominent, its effects on humans intensify"