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<p class="MsoNormal"><span style="color:black">I’d be especially concerned for specimens where someone might want to take skin swabs for the presence of microbiota.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><span style="font-size:14.0pt;font-family:"Freestyle Script";color:black">-Rob<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><b>From:</b> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu>
<b>On Behalf Of </b>Dirk Neumann<br>
<b>Sent:</b> Thursday, February 02, 2023 3:58 PM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> Re: [Nhcoll-l] Inquiry about installing Germicidal Lighting device (405nm) in museum space<o:p></o:p></p>
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<b><span style="font-size:9.0pt;color:#9C6500">External Email - Exercise Caution</span></b><o:p></o:p></p>
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<p class="MsoNormal">Hi Laura,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">why are those Indigo-Celan lights at all? To lower a potential (COVID) virus load in the classroom, or for some other reason?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">With best wishes<o:p></o:p></p>
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<p class="MsoNormal">Dirk<o:p></o:p></p>
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<p class="MsoNormal">Am 02.02.2023 um 21:25 schrieb Robert Waller:<o:p></o:p></p>
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<p class="MsoNormal">Hi Laura,<o:p></o:p></p>
<p class="MsoNormal">I have no experience with these lights but I am skeptical of their value in a classroom setting.<o:p></o:p></p>
<p class="MsoNormal">The risk to museum specimens of using lights having more short-wave (actinic, i.e. powerful) light will be a small, but certain increase in changes (damage) to sensitive museum specimens. I can imagine such lights having some (perhaps even
significant) effect in reducing viral, bacterial, and fungal loads in high person-density spaces with low ventilation rates. It seems reasonable to expect their effectiveness to drop rapidly at lower concentrations of infectious agents as person-density and
activity levels (hence breathing rates) are reduced and adequate ventilation is provided.<o:p></o:p></p>
<p class="MsoNormal">While this light may have health advantages in gymnasium locker rooms, I expect it would offer little or no health improvements in classrooms while resulting in a small but certain increase in risk to specimens.<o:p></o:p></p>
<p class="MsoNormal">Understand I am not an authority on health matters but some quick Fermi-like considerations of expected benefits and risks lead us to expect these lights are not appropriate for museum classrooms.<o:p></o:p></p>
<p class="MsoNormal">Rob<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> Nhcoll-l <a href="mailto:nhcoll-l-bounces@mailman.yale.edu">
<nhcoll-l-bounces@mailman.yale.edu></a> <b>On Behalf Of </b>Abraczinskas, Laura<br>
<b>Sent:</b> February 1, 2023 11:41 AM<br>
<b>To:</b> <a href="mailto:nhcoll-l@mailman.yale.edu">nhcoll-l@mailman.yale.edu</a><br>
<b>Subject:</b> [Nhcoll-l] Inquiry about installing Germicidal Lighting device (405nm) in museum space<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal">Does anyone have information about the use of germicidal lighting in museums and effects on collections? I learned today that a device known as “Indigo-Clean” is scheduled to be installed in the Museum’s classroom. This is a space where
specimens (mainly birds, mammals, and vertebrate fossils) are displayed and placed on tables for students to examine during weekly lab sessions. The lights are described as LED Luminaires.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">A university engineer provided the following information and links.<o:p></o:p></p>
<p class="MsoNormal">“ Indigo-Clean operates at 405nm which is just outside of UV range. UV is 100 to 400nm. Please use the link for detailed information on this technology.
<span style="font-size:12.0pt;line-height:106%"><a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41598-021-97797-0&data=05%7C01%7CWILSONR%40si.edu%7C855142c423dc409ba27108db05603b74%7C989b5e2a14e44efe93b78cdd5fc5d11c%7C0%7C0%7C638109683278571265%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=jqhrsfVPsF%2FNh2rIbEsE%2F1lLZZIKNJZLK2xLRrRSJjo%3D&reserved=0">https://www.nature.com/articles/s41598-021-97797-0</a>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fkenall.com%2FKenall-Files%2FProduct-Files%2FSell-Sheets%2FIndigo-Clean-Technology-Millenium-SimpleSeal_sellsheet.pdf&data=05%7C01%7CWILSONR%40si.edu%7C855142c423dc409ba27108db05603b74%7C989b5e2a14e44efe93b78cdd5fc5d11c%7C0%7C0%7C638109683278571265%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Fh9FL%2Fbcdh%2Fes9FD9P07C5ZXJJtNWJV%2BJLWSC%2Fm%2F5JE%3D&reserved=0">https://kenall.com/Kenall-Files/Product-Files/Sell-Sheets/Indigo-Clean-Technology-Millenium-SimpleSeal_sellsheet.pdf</a>
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I’d appreciate any advice or information!<o:p></o:p></p>
<p class="MsoNormal">Thanks and best,<o:p></o:p></p>
<p class="MsoNormal">Laura<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">Laura Abraczinskas</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">Pronouns: She, Her, Hers</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">Collections Manager, Vertebrate Collections</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">Michigan State University Museum</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">409 West Circle Drive</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">East Lansing, Michigan 48824</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">USA</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif">(517) 355-1290 (Office)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman ,serif",serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;line-height:106%;font-family:"Georgia",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0in;background:white">Michigan State University occupies the ancestral, traditional, and contemporary Lands
of the Anishinaabeg–Three Fires Confederacy of Ojibwe, Odawa, and Potawatomi peoples. The University resides on Land ceded in the 1819 Treaty of Saginaw.</span></i><o:p></o:p></p>
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<pre>_______________________________________________<o:p></o:p></pre>
<pre>Nhcoll-l mailing list<o:p></o:p></pre>
<pre><a href="mailto:Nhcoll-l@mailman.yale.edu">Nhcoll-l@mailman.yale.edu</a><o:p></o:p></pre>
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<pre>_______________________________________________<o:p></o:p></pre>
<pre>NHCOLL-L is brought to you by the Society for the Preservation of<o:p></o:p></pre>
<pre>Natural History Collections (SPNHC), an international society whose<o:p></o:p></pre>
<pre>mission is to improve the preservation, conservation and management of<o:p></o:p></pre>
<pre>natural history collections to ensure their continuing value to<o:p></o:p></pre>
<pre>society. See <a href="https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.spnhc.org%2F&data=05%7C01%7CWILSONR%40si.edu%7C855142c423dc409ba27108db05603b74%7C989b5e2a14e44efe93b78cdd5fc5d11c%7C0%7C0%7C638109683278571265%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=XQoG7Rq%2FkF9awuX8pB8tv8UhiPPN19javgbZJKSGK1c%3D&reserved=0">http://www.spnhc.org</a> for membership information.<o:p></o:p></pre>
<pre>Advertising on NH-COLL-L is inappropriate.<o:p></o:p></pre>
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<p><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:0in;line-height:normal">-- <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><b><span style="font-family:"Source Sans Pro \,sans-serif"">****</span></b><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><b><span style="font-family:"Source Sans Pro \,sans-serif""> </span></b><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><b><span style="font-family:"Source Sans Pro \,sans-serif"">Dirk Neumann</span></b><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><span style="font-family:"Source Sans Pro \,sans-serif"">Collection Manager, Hamburg</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><span style="font-family:"Source Sans Pro \,sans-serif""> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><span style="font-family:"Source Sans Pro \,sans-serif"">Postal address:</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><b><span style="font-family:"Source Sans Pro \,sans-serif"">Museum of Nature Hamburg</span></b><span style="font-family:"Source Sans Pro",sans-serif"><br>
</span>Leibniz Institute for the Analysis<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal">of Biodiversity Change<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><span style="font-family:"Source Sans Pro \,sans-serif"">Dirk Neumann</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><span style="font-family:"Source Sans Pro \,sans-serif"">Martin-Luther-King-Platz 3</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><span style="font-family:"Source Sans Pro \,sans-serif"">20146</span><span style="font-family:"Source Sans Pro",sans-serif">
</span><span style="font-family:"Source Sans Pro \,sans-serif"">Hamburg</span><span style="font-family:"Source Sans Pro",sans-serif"><br>
+49 </span><span style="font-family:"Source Sans Pro \,sans-serif"">40</span><span style="font-family:"Source Sans Pro",sans-serif">
</span><span style="font-family:"Source Sans Pro \,sans-serif"">238 3</span><span style="font-family:"Source Sans Pro",sans-serif">17 –
</span><span style="font-family:"Source Sans Pro \,sans-serif"">628</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><u><a href="mailto:d.neumann@leibniz-lib.de">d.neumann@leibniz-lib.de</a></u><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:0in;line-height:normal"><a href="imap://dneumann@webmail.leibniz-lib.de:993/fetch%3EUID%3E/INBOX/Privat/www.leibniz-lib.de"><span style="font-family:"Source Sans Pro",sans-serif">www.leibniz-lib.de</span></a><o:p></o:p></p>
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<br>
Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels<br>
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany<br>
<br>
Stiftung des öffentlichen Rechts;<br>
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Grüter (Kaufm. Geschäftsführer)<br>
Sitz der Stiftung: Adenauerallee 160 in Bonn<br>
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:0in;line-height:normal">-- <br>
Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels<br>
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany<br>
<br>
Stiftung des öffentlichen Rechts;<br>
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Grüter (Kaufm. Geschäftsführer)<br>
Sitz der Stiftung: Adenauerallee 160 in Bonn<br>
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst<o:p></o:p></p>
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