South Glamorgan,
United Kingdom 
yellow clouds of dust coming off my conifers of the flowers what is this and is it dangerous to us
28 May, 2010
Answers
Some people are allergic, but surprisingly few. Sometimes a temporary nuisance in ponds or swimming pools.
28 May, 2010
Yes we get a pretty yellow 'scum' on our pond and the car needs a good wash after the pollen has stopped blowing.
29 May, 2010
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Pollen the only way a conifer gets fertilised is by wind blown pollen. No danger to you or anything else.
28 May, 2010