Programme:   

1. Kelvin Williams, Chartered Occupational Hygiene Consultant @ Kelvinwilliams.co.uk 
Statistics for Hygienists 
This is a presentation on the use of statistics to evaluate exposure to chemical substances, to help make decisions about compliance or non-compliance with exposure limits. It shows how to actually do the necessary calculations to determine compliance or non-compliance. It's maybe more mathematical than is usual in an occupational hygiene presentation, but most hygienists with a science/engineering/maths background should be able to follow it. It focusses on the approach of the sampling strategy developed jointly by the British and Dutch occupational hygiene societies (the BOHS and the NVvA). This strategy was published in 2011, and is freely available on the websites of the BOHS, BSOH (the Belgian society for occupational hygiene) and the NVvA (the Dutch society).

The degree of variation in occupational hygiene monitoring data can be very high, we must therefore be extremely cautious in drawing conclusions from only a few samples. This poses a problem in the case of consultants carrying out “one day” surveys - this will be addressed in the presentation.

The recently published NEN-EN689 strategy guide for testing compliance with limits will be discussed.

PLEASE BRING A SCIENTIFIC CALCULATOR IF YOU CAN

2. Professor Martie Van Tongeren, Occupational and Environmental Health @ Manchester University
Martie will be speaking to the members about the MSc course at Manchester University. Martie is interested in occupational hygienists in the North West who may wish to become involved with the course.

Buffet Lunch will be at 12.00, talks to begin at 13.00.

Contact: BOHS Conferences Team [email protected] or +44 (0) 1332 250713

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