MCQOPTIONS
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| 1. |
The permissible standards of air quality fixed in India for residential areas for SPM, SO2, NO, and CO in μg/m3 respectively are: |
| A. | 200, 80, 80, 2000 |
| B. | 500, 120, 120, 5000 |
| C. | 100, 30, 30, 1000 |
| D. | 160, 80, 100, 10000 |
| Answer» B. 500, 120, 120, 5000 | |