Employers may need to arrange health surveillance for employees whose work involves generating aerosols containing isocyanates. Health surveillance is collecting and using information about workers’ health, related to their work. As isocyanates can cause asthma any health effects must be picked up early. This can be done using health surveillance.
Health surveillance for workers exposed to isocyanates may include:
Health questionnaires should be used to assess workers’ respiratory health before they start employment. At appropriate intervals, as recommended by a health professional, questionnaires should also be used to assess worker health during their employment.
All questionnaires should be completed by a responsible person and further advice will likely be required from an occupational health provider.
In addition to questionnaires, a lung function test may also be performed to help to assess a worker’s lung health.
Further detailed information in relation to health surveillance for those exposed to isocyanates is contained within COSHH essential general guidance G402 Health Surveillance for occupational asthma.
Decisions on the appropriate form of health surveillance should be taken on advice from an occupational health provider. The precise form of health surveillance will depend on the particular circumstances of exposure (level, frequency and duration) identified by the risk assessment.
Employees should always cooperate with their employer or works doctor/nurse if health surveillance is required.
Health surveillance is never an alternative to the proper control of exposure. It is not the same as health screening or health promotion.
Urine tests can also be used to measure exposure to isocyanate exposure. A urine test helps employers assess how effective their control measures are and works by measuring the breakdown products of isocyanate in urine. It involves taking samples of urine from workers that may have breathed in spray or vapour, and from unprotected workers nearby. Samples can be tested from as little as £50. Further information on this form of biological monitoring can be found within HSE COSHH essentials general guidance Urine sampling for isocyanate exposure measurement.
More information about choosing an occupational health provider is available by reading Tips for purchasing occupational health services.
