A fuel cell vehicle is definitely an advantage over the smoke-spewing cars, and many companies are already planning such vehicles, writes Sangeeta Sen It is 9:30 in the morning. It is just another day at a busy crossing. Pankaj Gupta, who goes to office by scooter every day suffers from severe bouts of allergic coughing due to the inhalation of carbon monoxide and other harmful air pollutants found in fumes, petrol and diesel exhausts that are regularly emitted from vehicles plying on the roads. According to investigations by a group of doctors from St. Bartholomew