Delhi blanketed by smog so toxic it can't be measured

Dust storms come months before the start of city's traditional 'pollution season'Smog more toxic than can be measured by monitoring devices has blanketed the Indian capital this week, months before the start of Delhi's traditional "pollution season".A thick haze was visible across the city from Tuesday and some government pollution monitors have recorded concentrations of 999 - the highest they can measure - as dust storms kicked up in nearby Rajasthan state blanketed the region. Continue reading...