Pollen calendar

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Record of pollen rates over a year

title: "Pollen calendar" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["heuristics", "forensic-techniques", "calendars"] description: "Record of pollen rates over a year" topic_path: "general/heuristics" source: "https://en.wikipedia.org/wiki/Pollen_calendar" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Record of pollen rates over a year ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Calendrier_pollinique.jpg" caption="Approximation of a pollen calendar (in French), showing the rise and fall of pollen from different plants over the year"] ::

A pollen calendar is used to show the peak pollen times for different types of plant pollen, which causes allergic reactions in certain people.

In forensics

A pollen calendar can be a very useful tool in forensic science, because it can be used to place the month, or week, or date of death. The use of pollen for criminal investigation purposes is called "forensic palynology".

However, the use of a pollen calendar to set the date of death should be used with extreme caution, and only by a carefully trained expert witness. The CSI effect has put pressure on some police officers and district attorneys to provide pollen-based evidence, but such evidence "appear[s] to be of limited use in the forensic context where outcomes are scrutinised in court."

References

References

  1. "Pollen calendar".
  2. "HON Allergy Glossary, World Pollen Calendar".
  3. "Pollen Calendar".
  4. (November 2006). "Towards a 'crime pollen calendar'—Pollen analysis on corpses throughout one year". Forensic Science International.
  5. Ray Palmer. "THE FORENSIC EXAMINATION OF FIBRES – A Review: 2004 to 2007." [[Interpol]] paper, p. 80. Found at [http://www.interpol.int/Public/Forensic/IFSS/meeting15/Papers01.pdf Interpol website (PDF)]. Accessed February 22, 2010. {{webarchive. link. (October 11, 2010.)
  6. D.C. Mildenhall, P.E.J. Wiltshire, and V.M. Bryant. "Editorial: Forensic palynology." ''Forensic Science International'', Volume 163 (2006), pp. 161–162. Found at [http://anthropology.tamu.edu/faculty/bryant/publications/Mildenhall%20et%20al%20(2006)%20Forensic%20Palynology.pdf Texas A & M University website] (PDF). Accessed February 23, 2010.
  7. (2009). "Criminal and Environmental Soil Forensics".

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heuristicsforensic-techniquescalendars