| Access roads construction | Concrete pad construction | ||
| Unities | Noise level (dB (A)) | Unities | Noise level (dB (A)) |
Dump truck | 2 | 85 | 1 | 85 |
Bulldozer | 1 | 90 | 1 | 123 |
Grader | 1 | 85 |
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Scraper loader | 1 | 93 |
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