The contamination of toxic substance in decoration materials is aroused much concerned.

Screening the primarily controlled toxic substances in air in Chongqing;

The adjustment of the identification criteria for inflammable liquids and toxic substances in the new edition of the IMDG Code, and its impects;

It was different for bio- gradation and included some toxic substances.

SHS solidification method for toxic materials under explosion is applied by setting sand-containing thermite around the explosion apparatus containing toxic materials.

This paper makes preliminary exploration of the harmfulness caused by waste liquid discharged from common poisonous substances in laboratory and the treatment of waste liquid.

The origins and harmfulness of toxic and harmful substances, including dioxins, heavy metals and their compounds,fluorescent substances, formaldehyde, total amount of bacteria, and other potential environment-controlled substances,were analysed, and the related limitation reqirement of these substames were introduced.