A Central Pollution Control Board-led Task Force today asked all agencies in Delhi-NCR to remain vigilant and take stringent measures to control air pollution.<br />'' <br />'' It asked them to intensify enforcement activities industrial areas and recommended the people to minimize the use of private vehicles.<br />'' <br />'' The overall Air Quality Index (AQI) in the national capital today recorded  395 in the evening which is in the poor category. <br />''