Types of pollutants

A

Arsenic

Metalloid used as hardener for alloys. It is also the arsenates, used as biocides in agriculture, which make it a reputable poison.

Asbestos

Magnesium or calcium silicates, in the form of fibers with refractory properties, but whose inhalation triggers human cancers and whose presence in large quantities is harmful to the environment.

B

BTEX (monocyclic aromatics)

This acronym includes benzene, toluene, ethylbenzene and xylenes, which are found in gasolines, solvents...

C

Cadmium

This metal of alloy, which one also finds in the accumulators, pigments ... Its toxicity is due to its similarity with the calcium, which is replaced in the bones.

Chrome

This metal is widely used to make stainless steels, but it is its salts, or chromates, used to make green, orange, and yellow pigments which are soluble and very toxic.

Copper

For this metal also, it is the biocidal properties of the oxides that make it toxic (algaecide and anti-foam well known).