The amount of tar inhaled and the level of carbon monoxide absorbed by marijuana smoker is what tobacco smokers

The amount of tar inhaled and the level of carbon monoxide absorbed by marijuana smoker is about 3-5 times of what tobacco smokers get. 

That makes marijuana have much more pulmonary hazard than tobacco, thus having a greater risk to develop chronic pulmonary obstruction disease.

Pain and infections

Explanation:

This is a typical short-term effect, long term ones being trauma, pregnancy etc. Hope this helps! :)