Is second hand smoke less harmful in an open setting?

Children are particularly susceptible to the effects of second-hand tobacco smoke. Exposure to second-hand smoke can increase a child’s risk of: Sudden Infant Death Syndrome (SIDS or cot death); lower birth-weight babies (where the mother was exposed to second-hand smoke); bronchitis, pneumonia and other lung/airways infections; exacerbating asthma; middle ear disease (otitis media or “glue ear”); and respiratory symptoms (e.g. coughing, wheezing). Even in an open setting, children can still be exposed to harmful levels of second-hand smoke carried towards them by air circulation. If cigarette smoke can be smelt then that is a good indicator that children are at risk of exposure. The recommended distance in an open area is at least 10 metres.