The industry has been aware at least since the 1960s that cigarettes contain significant levels of polonium.

News reports have supposed that regulators have been aware of these studies since 1980.

She was only too aware of his butchery since Culloden.

She had been too aware of him since their first meeting and he knew it.

Bolan had been aware of the situation in Boston since the first ignition.

Formally trained scientists have been aware of local fossils since at least the late 19th century.

Although Christie did not purchase the house until 1938, she had been aware of its existence since childhood.

I have been aware of this in Turkey since 1995.

After all it is clear that the Commission has been aware of this situation ever since 1988.

And let me say again to the Council: you have been aware of these demands since the beginning of the year.