Air Pollution: The Invisible Killer
Earlier the air we breathe in use to be pure and fresh but due to increasing industrialization and concentration of poisonous gases in the environment the air is getting more and more toxic day by day. Also these gases are the cause of many respiratory and other diseases. There's nothing quite like opening the door and breathing fresh, clean, air but how clean is the air you're breathing right now? The gases you're sucking up through your nose could be slowly killing you. According to the World Health Organization, around 4.2 million people die prematurely from the effects of polluted, outdoor air every single year. Air pollution is a huge problem and not just for people living in smog-choked cities through such things as global warming and damage to the ozone layer. It has the potential to affect us all. Air pollution is obvious when it pours from a smokestack (chimney), but it's not always so easy to spot. Its pollutants include sulfur dioxide and the gre...