<a alt="DSC04635.jpg" class="gcloudimg" href="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_10700/DSC04635.jpg">
 <img alt="DSC04635" class="alignnone size-full wp-image-860 gcloudimg" data-attachment-id="860" data-comments-opened="1" data-image-meta='{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}' data-image-title="DSC04635" data-recalc-dims="1" height="562" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_10700/DSC04635.jpg" width="1000"/>
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 Suspected mold growth is common in
 <a alt="foldscope-picture-cladosporium.html" class="gcloudimg" href="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_10700/foldscope-picture-cladosporium.html" target="_blank">
 laboratory walk-in coolers
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 .  The foldscope allowed for field identification using clear transparent tape and fingernail polish.


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 <img alt="20150109_154734zoom2" class="alignnone size-full wp-image-859 gcloudimg" data-attachment-id="859" data-comments-opened="1" data-image-meta='{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}' data-image-title="20150109_154734zoom2" data-recalc-dims="1" height="605" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_10700/20150109_154734zoom2.jpg" width="720"/>
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 After enlarging the image the
 
 Cladosporium sphaerospermum
 
 spores and mycelia were visible.  The Foldscope allowed identification to genera.  Actual identification to species required looking at the tease tape under a higher powered microscope.

Walk-in cooler contaminated with  Cladosporium sphaerospermum

Mold investigation of records area

Walk-in cooler contaminated with Cladosporium sphaerospermum

Neil Carlson

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