Air pollution may increase mortality risk

Air pollution can increase the risk of death from kidney ,bladder and colorectal cancer besides causing lung cancer.According to researchers, air pollution represents a complex mixture of a broad range of carcinogenic and mutagenic substances  that may play a role in chronic systemic inflammation,oxidative stress and DNA damage in tissues that could ultimately prove fatal.
     For the study ,the team included more than 600,000 adults and examined associations of mortality from cancer at 29 sites with long -term residential exposure to three ambient pollutantts