Telegraph: The Pollutant Standards Index, Singapore's main measure for air pollution, surged to a record reading of 371, breaching the "hazardous" classification that can aggravate respiratory ailments. The previous all-time high before this week was in 1997, when the index reached 226. Nearby Malaysia closed 200 schools and banned open burning in some areas. "I feel quite sad, but we have to survive, we have to keep moving, make to do with the best that we have with us," said Singapore tour guide Raj Rai....