P gappo ad&-alweffl CMIM Dr. H.J. Hardwick. Dr. J.D. Green. JDC/JJ/99 5th February, 19-95 The Control of Substances Hazardous to Health 14 th - 15th January, 1985; Meeting held in London Delgates from B.A.T.: Dr. S.R. Evelyn. Dr. J.D. Green. This note describes briefly the possible future requirements that will be placed upon employers as a result of the proposed regulations relating to the control of hazardous substances in the workplace. Certain :6 pects of particular reference to the tobacco Industry are highlighted nd therefore It may be appropriate for these notes, albeit in a slightly modified form, to have a wider circulation within BAT, UK&E. The new regulations, which are detailed In the consultative document entitled "Control of Substances Haxardous to Health", will, when approved, require employers to carry out certain duties relating to the exposure of employees to substances that are regarded as hazardous to health. The meeting to which this note relates was held to explain and discuss the various aspects and Implications of the proposed legislation. In determining the substances to which the regulations apply the lists contained in a previous H.S.C. document, Classification, Packaging and Labelling of Dangerous Substances Regulations, are of considerable assistance. If a substance Is classified an very toxic, toxic, harmful, corrosive or irritant then it should be considered under the COSHH regulations. Furthermore, carcinogens, dangerous pathogens, and dusts should be also considered. Complications can occur with manufactured formulation& (eg adhesives, paints) however, assistance here can be obtained fror. data sheets or further disclosures. Having determined that a substance to which the ODSHV regulations apply is being, or will be used, then there In a requirement to assess exposure of employees. Reference here must be made to concentrations prevailing and the exposure time. These considerations allow an est1mote of risk to be made. 'The related Code of Practice (draft) specifies that CO Cl**' BATCO doCUrnent for Province of BritiSh Colurnbia 5 Novernber 1999 47 ~ srwp H=at" ind DeMopmeat C&ft NPO:ure Is not to exceed the control limit or the recommended limit : her available (HSE, Guidance Notes EH.40). Discussion at the meeting however suggested that pressure from the workplace (employees and employers) would require a considerable margin for error to be included. Control of exposure is an important duty of the employer under these proposed regulations. Control may be brought about by elimination or substitution of the substance, ventilation including fume cupboards and hoods, containment in enclosure (eg for laboratory-type operations a glove box) or finally personal protection. Personal protection Is regarded as a final line of defence and not to be regarded as satisfactory until all the other control measures have been examined for suitability. In order that those employees concerned are able to use the required control measures, information must be supplied to them and suitable instruction given in the use, and necessity of usingv the equipoent provided to effect the control. 'Where employees are exposed to substances hazardous to health then health surveillance is a requirement. Approved procedures are detailed in the Code of Practice (draft) relating to the COSFH proposals. Eealth surveillance records must be kept and monitored for the employees concerned. Proposed Regulations and B.A.T. Two examples of where we may be expected to act upon the COSHR regulations are given below: Nicotine Reference to the "Classification, Packaging and Labelling of Dangerous Substances Regulations" shows that nicotine is classified &a a .,toxic" material. As such, it comes within the orbit of the COSHH regulations. The recommended limit in Guidance Note EH.40 is 0.5mg.s-3 and a note relating to the danger of skin absorption is made. Consequently, it may be required of us to have the exposure of employees to nicotine assessed and controlled. This may involve air sampling and analysis and surface contamination monitoring. Chemical knowledge of nicotine in tobacco would suggest that the greatest concentrations would he present in areas where steam was used as a processing aid. If concentrations of nicotine approached, or exceeded the recommended limits, then after consideration of exposure time of employees then control measures any be required. Depending also on the estimated exposures health surveillance and record keeping may be necessary. These measures would apply principally to factory-related situations but also be necessary for specific laboratory areas where nicotine was the major concern. CC) __-1 QJ_11 BATCo document for Province of British Columbia 5 November 1999 j~m CMUO R=2& and Devejapffli WPI Carcinogens Th:r:u:r:cf:w Indu atrial laboratories that do not deal with some known0 p t d carcinogenic comp ounds. Perhaps the prime example in B.A.T. at GR&DC Is the extraction and analysis of nitrosamines. In the laboratory concerned control measures have been introduced to reduce the exposure to the nitrosamines being examined. The assessment of exposure was not based upon measured values but on consideration of working procedures. No regular monitoring is carried out to determine the nitrosamine levels in the area. Health surveillance is carried out as recommended by a medically qualified practitioner in the form of a liver-function test. Records are kept in relation to these tests. In this case therefore, we are complying with some of the requirements and with the spirit of the COSRH regulations. Further Cases Tobacco dust may also require attention under the COSHH regulations and it is likely that further cases will come to light for attention in the future. It is important that careful consideration be given to any new substances being introduced into the working environment. J.D. GREEN cc. :;r. C. I. Ayres. Dr. R.A. Crellin. Dr. S.R. Evelyn. Mr.T.C. Mitchell. CX:) BATCo document for Province of British Columbia 5 November 1999