Lucknow has become noisier that ever before. This was revealed in Indian Institute of Toxicology Research (IITR) noise monitoring report. Indiranagar had the highest daytime noise level, averaging 73.5 decibels (dB(A)), followed by Gomti Nagar (72.1 dB(A)), Vikas Nagar (68.8 dB(A)), and Aliganj (61.8 dB(A)). At night, Gomti Nagar registered the highest noise levels at 64.2 dB(A), followed by Aliganj (57.3 dB(A)), Vikas Nagar (55.7 dB(A)), and Indira Nagar (61.5 dB(A)).
In industrial areas, the permissible limit is 75dB for daytime and 70dB at night. In commercial areas, it is 65dB and 55dB while it is 55dB and 45 dB respectively in residential areas.