In January 2013, the Qatar Statistics Authority estimated the country's population at 1,903,447, of which 1,405,164 were males and 498,283 females. At the time of the first census, held in 1970, the population was 111,133.
A metallic taste in the mouth can be attributed to many factors, but the most common causes of this are: 1  Excessive Iron levels in the blood.  Side effect of medications (especially ones used to treat high blood pressure, arthritis and anti-depressants)
A metallic taste in the mouth is a form of dysgeusia, an abnormality of the sense of taste. There are many possible causes of having a metallic taste in your mouth, ranging from medicines to systemic disorders to environmental hazards.