Indian capital resumes some activities despite hazardous air, river foam
NEW DELHI, Nov 20 (Reuters) - India's capital Delhi re-opened schools and some building sites on Monday amid signs of receding air pollution, although it remained classified as hazardous, while a toxic foam besmirched stretches of the Yamuna river flowing through the city.
The world's most polluted capital resumed its annual battle on pollution this month, despite government pledges to improve. Monday's air quality index (AQI) of 336 was down from Thursday's level of 509, but still "hazardous", Swiss group IQAir said.