Posted By Steves1 I know the health effects of working with Isocyanates but: Is there a significant risk to employees that access a multi storey car park where contractors are applying Iso based paints (sprayed). Access is of short duration (10 minutes max per day), work area is not sealed off but is segregated by 25-30 metres, and car park has good "natural ventilation". No environmental monitoring conducted by contractors at the time but appropriate RPE and PPE was worn by them. Also as a precaution should we provide health screening for any of the employees who visited the site during the contractors works. (currently investigating ill health alleged due to above causation prior to me being employed, hence some of the vagueness)

Posted By Merv Newman isocyantes are rather dodgy as they are "sensitisers" An exposed person may have little or no reaction to a first exposure but could react violently to a subsequent minor exposure way below the TLV And I have never considered Dragers to be accurate to more than +/-50% You need expert medical opinion. Merv

Posted By Glyn Atkinson Don't be fooled by the distance mentioned. We have had a long term problem with spraying ships at height on dockland away from our premises and across a dual carriageway from a distance of nearly 400 metres, with pick up of stored grit and Isocyanate paint combined by wind conditions. In a nutshell, the firm have to fax us when they are spraying and have given our employees dust sheets for their cars to protect paintwork. When you see the damage done by paint on cars you think - M-mm, what's this doing long term to lungs? Ban it, you say, well, not so easy - we have had the local HSE officers, Environmental Agency personnel involved, out local MP, John Prescott, and because the shipbuilding safety law was never repealed from 1890 odd, we have no legal standing to stop them under current COSHH laws. They didn't spray Isocyanates at height in those days ! How can you practically prove that no paint is reaching the areas that your employees use to access your area of work? Maybe a static dose monitor with an Isocyanate capable detector head linked to a 24 / 7 chart recorder to prove any contamination of the access area ??