NewsTarget.com reports that the burning of incense releases high levels of some chemicals associated with lung cancer. New Scientist magazine reported that a set of chemicals called polycyclic aromatic hydrocarbons (PAHs) are of primary concern. PAHs include carcinogenic chemicals like the components of benzene and the chemical used in mothballs.

Dr. Ben Kim says the studies serve ‘as a good reminder to allow fresh air to circulate throughout one's living space.’ Dr. Kim says it is ‘beneficial to one's health to simply open a few windows for a minute or two each day to allow some fresh air to enter the residence.’