NDTV | India admits 'Delhi as polluted as Beijing' GlobalPost These extremely fine particles of less than 2.5 micrometres in diameter are linked with increased rates of chronic bronchitis, lung cancer and heart disease as they penetrate deep into the lungs and can pass into the bloodstream. Indian officials in ... India Rejects WHO Data Showing Delhi Air as World's Dirtiest Delhi most polluted city in the world, says World Health Organisation |
