New Delhi, March 8 -- The Capital's seven-day streak of "moderate" pollution levels was snapped on Friday, as the average air quality index (AQI) reading slipped into the poor zone following a slowing down of wind speeds. The deterioration of air quality prompted the Commission for Air Quality Management (CAQM) to reimpose curbs under the Graded Response Action Plan (Grap), with stage 1 restrictions introduced with immediate effect....