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Noise levels in different industries
| Industries | Range (dBA) |
|---|---|
| Textile industries | 102-114 |
| Pharmaceutical firms | 93-103 |
| Fertilizer plants | 90-102 |
| Oil and natural gas complex in Bombay high | 90-119 |
| Road traffic in Ahmedabad city | 60-102 |
| Surface rail traffic | 90-102 |
| Metro rail | 70-111 |
| Air traffic | 90-112 |
