Oil containing more than 0.5% sulphur by weight is said to be 'sour'.

Some contain sulphur or resorcinol; others, the powerful benzoyl peroxide.

The mineral water of the bath contains sulphur and carbon-dioxide which makes it smell like rotten egg.

The water from the hot spring contains natural sulphur which is known to have health benefits.

Fuel subject to both taxes will apparently be left undyed, regardless of how much sulphur it contains.

Sulphates are also emitted if the fuel contains sulphur.

The river contains many minerals, especially sulphur, carbonates and iron compounds.

The bad smell is usually caused by chemical molecules containing sulphur.

Another point is that the heavy fuel oil used by furnaces and cement factories should also contain less sulphur.

Asparagus contains sulphur, which does not do much for the taste of wine.