Monitoring Benzene

Formula: C6H6 | CAS: 71-43-2

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Protecting both people and the environment whilst meeting the operational needs of your business is paramount and if you have operations in the UK you will be well aware of the requirements of the Control of Substances Hazardous to Health (CoSHH) regulations and likewise the Code of Federal Regulations (CFR) in the US.

Similar legislation exists worldwide, the common theme being an onus on hazard identification, risk assessment and the provision of appropriate control measures.

An introductory guide to benzene exposure legislation

Properties | Exposure | Going Forward

EU Directive 2017/164/EU has introduced indicative occupational exposure limit values (IOELV). These are health-based, non-binding values, derived from the most recent scientific data available and availability of measurement techniques. For any chemical agent for which an IOELV has been set at EU level, member States are required to establish a national occupational exposure limit (OEL) value. They are required to take into account the EU limit value, determining the nature of the national limit value in accordance with national legislation and current practice.
– European Agency for Health and Safety at Work (EU-OSHA)

Occupational exposure limits

Dangerous substances, in liquid, gas or solid form that pose a risk to workers’ health or safety can be found in nearly all workplaces. According to the European Agency for Health and Safety at Work (EU-OSHA), 15% of workers across the European Union (EU) have to handle dangerous substances as part of their job, and another 15% report breathing in smoke, fumes, powder or dust at work which could be hazardous to their health.

In addition, Directive 2004/37/EC was specifically introduced for carcinogens or mutagens at work and essentially requires that the employer assess and manage the risk of exposure to carcinogens or mutagens and to:-

  • limit the quantities of a carcinogen or mutagen at the place of work;
  • keep as low as possible the number of workers exposed;
  • design the work processes so as to minimise the substance release;
  • evacuate carcinogens or mutagens at source, but respect the environment;
  • use appropriate measurement procedures (especially for early detection
    of abnormal exposures from unforeseeable event or accident);
  • apply suitable working procedures and methods;
  • use individual protection measures if collective protection measures are not enough;
  • provide for hygiene measures (regular cleaning);
  • inform workers;
  • demarcate risk areas and use adequate warning and safety signs (including ”no smoking”);
  • draw up emergency plans;
  • use sealed and clearly and visibly labelled containers for storage, handling, transportation and waste disposal.

Directive 2004/37/EC was amended on the 9th March 2022 to outline a revised limit value for benzene.

These changes have been highlighted in the latest introductory guide to benzene exposure legislations.

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“An introductory guide to benzene exposure legislation”

An introductory guide to benzene exposure legislation guide which can be downloaded below provides the reader with an in-depth balance of knowledge covering occupational exposure limits and information on understanding as an employee/worker what your workplace exposures are.


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