Question

Lead concentration in blood is considered alarming if it is

• A. 30 µg/100 ml
• B. 4-6 µg/100 ml
• C. 10 µg/100 ml
• D. 20 µg/100 ml

Answer 1

Answer: (C)

10 µg/100 ml

Answer 2

Lead, a prominent heavy metal pollutant, is predominantly discharged into the environment through vehicle emissions. It lingers in the atmosphere and subsequently settles during rainfall. Lead can enter the human body when ingested via water or inhaled as suspended particles. When the concentration of lead in the bloodstream reaches 30μg/100ml, it is deemed toxic, as it has the potential to induce conditions like aplastic anemia, tumors, and cancer.Therefore, the accurate answer is '30μg/100ml.'