Question

A person is considered to be suffering from lead poisoning if it's concentration in him is more than 15micrograms of lead per deciliter of blood concentration in parts per billion parts is

Answer 1

Hey !!

10 μ G = 10 × 10⁻⁶ g = 10⁻⁵ g

  1 decilitre = 0.1 L = 100 mL

Thus, 100 mL of blood contain lead = 10⁻⁵ g

∴ 1 billion (10⁹) parts will contain lead

              = 10⁻⁵ / 100 × 10⁻⁹ = 10²    

_____= 100 parts

Therefore, concentration = 100 parts per billion parts.

HOPE IT HELPS YOU !!