SUSPENDED particles released in the air from different sources have remained trapped and stationary under a blanket of cloud over Dhaka city in the last few days. Prolonged cold weather has created fog to a suffocating environment for city dwellers.  The fog added with suspended particles, harmful gases, dust, smoke has created smog that hovers all over the city and affects health of the city dwellers. The air of Dhaka city where almost ten percent of the total population of the country lives is dangerously polluted.  The densely populated city is burdened with old and faulty vehicles, thousands of brickfields around it. 

Huge dust in the dry winter contributes to air pollution at an alarming rate. The smog effect is the worst situation created due to air pollution over a long period during dry season.  A huge number of vehicles (60 % of the total vehicles in the country.) ply in the city and emit suspended particulate matter (SPM) that contains soot, responsible for absorbing and carrying harmful organic compound to lungs. Carbon monoxide when inhaled makes it difficult for heart to pump blood through arteries.

The smog effect is dangerous threat to city dwellers especially to women and children. It can cause anything from minor pain to deadly diseases like cancer.  Smog can irritate and inflame pulmonary membranes, causing chest pains, colds, pneumonia, coughing, and throat irritation.  People with asthma problems have higher risks to face respiratory attack because of smog effect.  A minor exposure to smog cause a healthy person to get asthma attacks. There is a little scope to deal with things that is concentrated on atmosphere naturally.  Steps are needed to stop emission of poisonous particles and also to make people aware the harmful effects of smog.