The article describes occupational exposure assessment, biological exposure monitoring, biomarkers, and analytical methods. It compares biological monitoring with workplace air analysis. The information can be used by labour inspectors, occupational hygiene specialists and persons exposed to chemicals during their production, transport, processing or use in other work processes.

A website providing extensive information on risk prevention and health protection and safety at work. It offers up-to-date professional resources concerning nanomaterials: normative documents, details on nanoscience, nano-research in the Czech Republic and the EU. Another part consists of databases of nanomaterials, information sheets of individual nanomaterials that occur at workplaces.

The website summarises risks and good practice in managing them in a a chemical lab. It provides information on relevant legislation and links to other articles on similar topics.

Public web portal of regional crisis management. The Hazardous Substances section contains an alphabetical list of nearly 90 hazardous and particularly hazardous substances. It offers detailed structured information on each substance. Scope of information: hazard, physical and chemical features, permissible limits, labels and symbols, safety data sheets, detection methods, disposal procedures, poisoning, first aid, population protection. Furthermore, the portal offers information on the prevention of major chemical accidents.

Guidance on the conduct of control activities under the REACH and CLP Regulations and the Ordinance on the Procedure and Procedure for the Storage of Dangerous Chemical Substances and Mixtures. The web page contains 12 attachments with information materials - documents for carrying out control activities and compliance with the legal requirements for protection against the harmful effects of the chemical substances and mixtures.The main page of the ministry also provides information on other chemicals legislation, enforcement activities etc.

The presentation examines the working conditions of industrial cleaning processes in the workplace. It provides information on the cleaning agents used and the risks of their use in cases where they are classified as dangerous substances. The slides describe the priorities for protective measures under the legislation on safety and health at work. Alternatives have been considered to reduce or eliminate the risk of using hazardous substances for industrial cleaning purposes.

The material represents variety of different classifications of chemical substances and mixtures - according to the physical state, based on the toxicological properties of the substances, including classification according to Bulgarian legislation. Тhere are legal definitions for all groups of hazardous substances. Information is provided on how dangerous substances are labeled, stored and used, in order to ensure healthy and safe working conditions and to prevent industrial accidents.

This article gives an overview of chemical agents, the employer obligations regarding chemicals at the workplace, hazard classification and labelling as well as risk assessment, risk prevention and other aspects at the workplace. The website contains furter information on personal protective equipment under the section articles.  

This website introduces several databases on chemicals operated by the European Chemicals Agency. Among these are: The database of substances registered under REACH, the classification and labelling inventory, a search engine on legal requirements applicable to specific substances, a database on substances of very high concern in articles. 

In this article the main normative documents describing the employer's obligations in dealing with chemicals and mixtures are given. Accordingly, the employer is committed to ensure healthy and safe working conditions for workers with hazardous substances. It includes main and minimum requirements for reducing or preventing the risk to human health and/or the environment.