Air quality too, to be monitored at five spots, during Deepavali

It’s a busy time of year for officials of Tamil Nadu Pollution Control Board (TNPCB). A week head of Deepavali, they have begun measuring levels of noise and ambient air quality at five places in the city. Monitoring stations have been established in thickly-populated areas like Besant Nagar, T. Nagar, Sowcarpet, Nungambakkam and Triplicane to collect dust samples before, during and after the festival. According to an official, noise levels will be recorded for six hours every evening and pollution levels, every 24 hours from 6 a.m.