Exposure Points System Explained

Exposure action value (EAV) and exposure limit value (ELV)

What is the exposure action value?

The exposure action value (EAV) is a daily amount of vibration exposure above which employers are required to take action to control exposure. The greater the exposure level, the greater the risk and the more action employers will need to take to reduce the risk. For hand-arm vibration the EAV is a daily exposure of 2.5 m/s2 A(8).

What is the exposure limit value?

The exposure limit value (ELV) is the maximum amount of vibration an employee may be exposed to on any single day. For hand-arm vibration the ELV is a daily exposure of 5 m/s2 A(8). It represents a high risk above which employees should not be exposed.

The Regulations allow a transitional period for the limit value until July 2010. This only applies to work equipment already in use before July 2007. The exposure limit value may be exceeded during the transitional period as long as you have complied with all the other requirements of the Regulations and taken all reasonably practicable actions to reduce exposure as much as you can.

Figure 1: How vibration level and duration affect exposure.

Testimonial:

Everton Football Club - Richard Cairns, Health & Safety Manager

“Hand Arm Vibration Syndrome is not just a problem for people using industrial power tools in the construction or manufacturing sectors – it can affect anyone who regularly uses other vibrating equipment including mowers and strimmers. We have dozens of lawnmowers that are in daily use at Goodison Park and our training complex at Finch Farm, so we have to have a monitoring system that is simple and effective. “In the past we relied on timesheets and individual record-keeping to monitor vibration exposure, but the HAVmeter system is a far superior method of doing this. All of the information is collated by the devices and provides us with a comprehensive overview of how much exposure each member of staff is subjected to. If they reach the safe limit stipulated by the HSE, then they are alerted to the danger at once – meaning there is no chance of over-exposure. “However, it is not just a good tool for preventing injuries. The system allows us to generate reports about the vibration levels of our equipment, so we can identify which machines need to be replaced or upgraded. It’s a very versatile piece of kit that will continue to be hugely beneficial to our groundskeeping operations in the future.”