Titanium tetrachloride enters the environment primarily in the air from factories that make or use it in various
chemical processes, or as a result of spills.

If moisture is in the air, titanium tetrachloride reacts rapidly
with it to form hydrochloric acid and other titanium
compounds, such as titanium hydroxide and titanium
oxychlorides.

Some of the titanium compounds may settle out to soil or
water. In water, they sink into the bottom sediments.

The titanium compounds may remain for a long time in
the soil or sediments.

Some other titanium compounds, such as titanium dioxide,
are also found in air and water.