1)Benzoin incense is rarely pure, as factories mix
the benzoin with damar resin and other ingredients
to make incense blocks. Damar is a resin from Pine,
used in incense sticks instead of benzoin. These burn
more slowly. The researchers say that smoke from
burning incense stick is laden with cancer causing chemicals.
Beyond the cancer scare, incense is actually bad for air.
Incense burning creates more pollution than road traffic
at a local intersection. A large group of highly
carcinogenic chemicals are released, when
certain substances are burnt. A polycyclic aromatic
hydro carbons (P.A.Hs) called benzopyrene which
is thought to cause lung cancer was found in very high
quantities inside a Buddhist temple in Tainan city,
Thaiwan, by researchers.