OTHER
University of Arizona
About this organization
University researchers and extension personnel produced historical Yuma fly research and PFAS studies. The institution’s communications articles are distinguished from original studies.
Sources 6
- Primary source · Scientific study2015 Yuma fly-pathogen report
University of Arizona Cooperative Extension report with Yuma County Pest Abatement District, dated July 13, 2015.
- Secondary source / research lead · News reportUniversity of Arizona explains PFAS research and Pima costs
February 27, 2026 university communications article by Rosemary Brandt includes Ian Pepper’s account.
- Primary source · Scientific studyUniversity of Arizona presentation on potential fly sources in Yuma
Presentation by Paula Rivadeneira dated April 24, 2018, describing fieldwork in 2017.
- Secondary source / research lead · OtherUniversity of Arizona WEST account of Pima’s moratorium review
University research-center account of collaboration with Pima County on biosolids testing.
- Secondary source / research lead · OtherUniversity of Arizona WEST PFAS project overview
Research-center description of its national collaborative PFAS project.
- Secondary source / research lead · OtherUnresolved research compilation: Run 4 Correction Addendum: Recovered Fly-Science Primary Records
This page documents an unresolved claim or research lead. It is not a finding of fact. UNRESOLVED. SECONDARY SOURCE ONLY. This is a cleaned catalog description of an internal research compilation, not independent corroboration of its contents. Authorship and issuing authority are not independently authenticated. The raw research PDF remains private.
Timeline events 2
- University and Pest Abatement District report on fly pathogens
The report bears July 13, 2015 as its date. Its pooled-sample findings concern the studied sites and trapping events, not current regional causation.
- University presentation reviews selected Yuma fly sources
Paula Rivadeneira’s presentation is dated April 24, 2018 and describes 2017 fieldwork. The presentation date is distinct from the sampling period.
People 2
- Ian Pepper
Ian Pepper is a named author of the reviewed PFAS study abstracts and is quoted in the University of Arizona’s February 2026 account of biosolids research and Pima disposal costs. Research findings and cost statements have different evidentiary limits.
- Paula Rivadeneira
Paula Rivadeneira is identified with the University of Arizona Yuma Agricultural Center on the April 24, 2018 presentation about potential fly sources. The role is historical; current employment is not inferred.
Related topics 1
- Yuma Biosolids / AgTech
A source-first guide to Yuma’s biosolids debate: the lease decision, City contract, fly research, PFAS questions and the records still needed.