$CO_{2}$ is carried by haemoglobin as carbamino haemoglobin (about 20-25%). This binding is related to the partial pressure of $CO_{2}.\rho O_{2}$ is a major factor, which could effect this binding
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.