LUCKNOW, Oct. 18 -- Ahead of Diwali, city markets are bustling with customers, and this increased activity, combined with chock a block roads and increased honking, is contributing significantly to a rise in noise pollution levels. A reality check confirms that noise levels in some areas have already exceeded permissible limits during the pre-Diwali period. There is honking sound all over the markets- prompting people to speak on top of their voice to be audible to shopkeepers. As per ambient air quality standards in respect of noise, the permissible limits in commercial areas during day time is 65 decibels. When Team HT, with the help of a decibel meter, recorded the sound in various prominent markets, the readings were quite higher than the permissible limits. At Naka Hindola, the maximum sound level was 89 dB during daytime with an average of 51 dB. Similarly, Aminabad's maximum sound level was recorded at 88 dB and the average was 84 dB. "Prolonged exposure to noise above 85 dB can damage the inner ear, leading to permanent hearing loss. It can also lead to tinnitus - constant ringing or buzzing in the ears due to nerve damage and reduced sleep quality - causing fatigue and poor concentration. This may lead to continuous loud noise that increases stress hormones and blood pressure - leading to risk of heart disease. Chronic noise exposure is linked to anxiety, irritability and depression," said Abhay Raj, scientist at Indian Institute of Toxicology Research, "Noise in schools or homes near airports and roads can affect reading and memory skills. Constant noise exposure may also hinder language learning," the scientist added....