| R G Kar Hospital (S) | ||
| Months | Day | Night |
| Standard Limit in Leq dB(A) | 50 | 40 |
| January | 55 | 66 |
| Febraury | 48 | 51 |
| March | 51 | 61 |
| April | 56 | 65 |
| May | 58 | 57 |
| June | 66 | 66 |
| July | 58 | 59 |
| August | 60 | 62 |
| September | 52 | 56 |
| October | 54 | 58 |
| November | 58 | 60 |
| December | 59 | 59 |
| All Values are measured in Leq dB(A) | ||
| I= Industrial, C= Commercial, R= Residential, S= Silence | ||