What are the differences between LD50 and LC50?

Key differences between LD50 and LC50:

LD50:

• Stands for Lethal Dose 50%
• Indicates the lethal dose of a substance that can cause 50% deaths when exposed to a population 
• Unit of measurement is milligrams of substance per kilogram of population or mg/kg bw/d (mg of substance per kg of body weight administered per day

LC50:

• Stands for Lethal Concentration 50%
• Indicates the lethal concentration of a substance that can cause 50% deaths when exposed to a population
• Unit of measurement is milligrams per cubic meter or ppm