| Anna Nagar (S) | ||
| Months | Day | Night |
| Standard Limit in Leq dB(A) | 50 | 40 |
| January | 59 | 58 |
| Febraury | 73 | 74 |
| March | 82 | 82 |
| April | 82 | 83 |
| May | 81 | 81 |
| June | 69 | 70 |
| July | 70 | 70 |
| August | 66 | 67 |
| September | 65 | 66 |
| October | 64 | 64 |
| November | 49 | 48 |
| December | 60 | 61 |
| All Values are measured in Leq dB(A) | ||
| I= Industrial, C= Commercial, R= Residential, S= Silence | ||