new study has found that pollution is now  world's biggest killer. One in six deaths worldwide is because of pollution. This is 16 per cent of all global deaths. Most of these deaths were from non-infectious diseases caused by pollution. These include heart disease, lung cancer and stroke.  study was published in  medical journal 'The Lancet'. Researchers said most pollution-related deaths occurred in poorer countries. About 92 per cent of these deaths were in low-income nations, especially countries where there is  lot of economic development, such as India and China. Bangladesh and Somalia were  worst affected countries. Brunei and Sweden had  lowest numbers of pollution-related deaths.
Study co-author Karti Sandilya said: "Pollution, poverty, poor health, and social injustice are deeply intertwined." He added: "Pollution threatens fundamental human rights, such as  right to life, health, wellbeing, and safe work." He said air pollution was  biggest killer. Air pollution led to 6.5 million premature deaths.  second biggest killer was water pollution, which caused 1.8 million deaths.  next largest killer was pollution in  workplace, which was linked to 800,000 worldwide deaths. Scientist Dr Penny Woods said: "Air pollution is reaching crisis point." She said  people who pollution hit  hardest are those with breathing and lung problems, children and  elderly.