Amid the intense cold, pollution levels deteriorated in Delhi on Monday. Commuters faced difficulties due to low visibility caused by foggy conditions and bad pollution levels. The overall air quality in the National Capital dipped to 'very poor' category on January 02, with AQI recorded at 301. According to the System of Air Quality and Weather Forecasting and Research (SAFAR), the AQI in Gurugram stood at 353, while it was 351 in Noida.