Sounds above what level are considered hazardous noise pollution?

Options

A. above 30 dB
B. above 80 dB
C. above 100 dB
D. above 120 dB

Explanation

To determine the level of sound that is considered hazardous noise pollution, we can follow these steps:

1. **Understand Noise Pollution**: Noise pollution refers to harmful or annoying levels of noise that can have adverse effects on human health and well-being.

2. **Identify Decibel Levels**: The question provides several options regarding decibel levels: above 30 decibels, above 80 decibels, above 100 decibels, and above 120 decibels.

3. **Research Effects of Noise**: It is known that prolonged exposure to high decibel levels can lead to various health issues, including increased tension and changes in breathing patterns.

4. **Determine the Threshold**: According to the information provided, noise levels above 80 decibels for more than 8 hours a day can cause harmful effects on humans.

5. **Select the Correct Answer**: Based on the information gathered, the correct answer to the question is that sounds above 80 decibels are considered hazardous noise pollution.

### Final Answer:
Sounds above 80 decibels are considered hazardous noise pollution.

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