ION Science Industry Blog

The latest industry news, knowledge and opinion.
Benzene
8 February 2018

What are my workplace benzene exposure limits?

 

What are your options for measuring benzene exposure within the workplace

Knowing the obligations of legislation and OELs, the question remains, how do I know if my workplace benzene exposures are below the limits for my country? 

Unlike other health and safety issues that are managed by risk assessment, this can only be determined by monitoring.

Benzene
8 February 2018

Understanding occupational exposure limits for benzene

 

EU Directive 2017/164/EU5 has introduced indicative occupational exposure limit values (IOELV).
 

These are health-based, non-binding values, derived from the most recent scientic 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. 

Benzene
8 February 2018

Managing hazardous substances within the workplace

 


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)1, 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.

Some highly dangerous substances, such as asbestos, are now banned or under strict control. However, other harmful substances are still widely used and consequently legislation is in place to ensure that the risks associated with them are properly managed. The Chemical Agents Directive 2 is ‘celebrating’ its 20th anniversary during 2018. In the UK it is implemented as the Control of Substances Hazardous to Health (COSHH) Regulations 2002 and transposition across the EU has been summarised by EU-OSHA3.

Benzene Oil & Gas MiniPiD
12 January 2018

Using PID for Benzene detection

Rather than having to rely on human senses in a workplace setting it is advisable to use an appropriate form of quantitative monitoring; indeed the onus is on the employer to do the risk assessment.  Remembering the old adage attributed to Lord Kelvin that you can’t manage what you don’t measure, there are methods published by the Health and Safety Executive in the UK and NIOSH in the USA that can be used to capture air samples for later analysis but by definition this occurs after exposure could have taken place. Therefore real-time methods are preferable which can range from fixed, permanent systems for fence line applications, hand-held devices for area measurements or confined space entry and most recently developed, personal monitors that can alert a worker of an immediate hazard.

Benzene Oil & Gas
9 January 2018

The facts about Benzene exposure

 

Benzene and Benzene exposure 

Today, we look some more at benzene and more importantly benzene exposure. Benzene evaporates easily and most people can detect its distinctive smell at concentrations between 2.5 and 5 parts per million (ppm) in air.

As well as inhalation, benzene can be absorbed into the body through the skin or by swallowing material containing it. The effects on worker’s health depends upon how much benzene they are exposed to and for how long. The immediate effects of a single exposure to a high concentration (hundreds of ppm) include headache, tiredness, nausea, dizziness, and even unconsciousness, if the exposure is very high (thousands of ppm) meaning an acute safety incident.

Benzene Oil & Gas
5 January 2018

12 things you should know about Benzene

 

  1. Benzene is a chemical that is a colourless or light yellow liquid at room temperature. 

  2. Benzene evaporates into the air very quickly. Its vapour is heavier than air and may sink into low-lying areas.

  3. Benzene is the simplest aromatic hydrocarbon and distinguished as the first aromatic hydrocarbons with the nature of its bonding first established in the 19th century.

  4. Benzene is widely used in the United States. It ranks in the top 20 chemicals for production volume.

Benzene Oil & Gas refinery
3 January 2018

Detecting Benzene in a Refinery environment

Why you need to take Benzene seriously

Benzene remains an important industrial chemical, but is well known as extremely hazardous and recognised as a ca rcinogen. Legislation across the globe has been put in place to ensure exposure of Benzene at plants where it is produced is minimised. Modern PID instruments offer the means to monitor Benzene concentrations down to 10 ppb or better.

Benzene Oil & Gas TAC VOC
13 December 2017

Understanding the Benzene ring

"The benzene ring is a basic component of many organic compounds, especially the aromatic hydrocarbons. In benzene itself, each carbon atom is also bonded to a hydrogen atom; in derivatives of benzene, one or more of the hydrogen atoms is replaced by other atoms or groups of atoms."
Dictionary.com

Gas Detection Calibration
11 December 2017

How to bump test and calibrate gas detection equipment

Introduction

ATEX, IEC, British HSE, and US OSHA standards all call for the bump test and calibration of any portable instrument used for worker health and safety protection in a potentially hazardous environment. In order to ensure safety it is necessary not only for the gas meter to read accurately but also to have functional alarms that alert the worker to a hazardous condition. Initial calibration upon receiving the instrument is necessary and, because most sensors can suffer decreased response over time, recalibration will be required.