A Brainy Menace
Lead poisoning is preventable. Yet widespread use of lead in consumables including paints and gasoline continues to pose major risks to environment and public health. WHO ranks exposure to the versatile and toxic substance among the top ten priority chemicals of public health concerns in Africa. In a recent self-assessment survey by WHO, majority of Member States in Africa identified lead poisoning as a key public health threat. Exposure is pervasive to human health. Lead poisoning kills about 494,550 people yearly, accounting for over 9.3 million disability adjusted life years (DALYs) due to long-term health effects. In Africa, it is responsible for about 22,605 deaths in 2016. There is no known safe concentration of lead in the blood. In the body, the heavy metal affects brain, liver, kidney and bones. Exposure produces a spectrum of irreversible injuries including loss of cognition, shortening of attention span, alteration of behavior, attention def...