Online educational resource on achieving indoor environmental quality with radiant based HVAC systems
Radiant Heating Design Guide
ndoor Environmental Quality: particulate matter

This page updated last on September 09, 2010

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Lavender pollen grain.
Coloured scanning electron micrograph (SEM) of a French lavender (Lavandula dentata) flower, with an enlarged section showing a pollen grain (yellow) amongst the petal (papilla) cells (purple). The pollen shows the round, sculpted protein coat characteristic of lavender. Pollen is produced by the male sex organs in lavender flowers and dispersed by insects to the female sex organs of other lavender flowers, where the eggs (ova) are fertilised.

pollen allergies

Photo Credit: Power and Syred/Science Photo Library


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