The Grizzly, October 27, 2022

Our 2022 Homecoming King and Queen! • Historic Trees Become Nasal Nuisance • Halloween Cartoon • The Film Club Satisfies Student Interests • Halloween Word Search • Opinions: President Hannigan Made Me Cry (And Frankly, I Loved It) • Golf Teams\u27 Fall Season Brings Hope for Spring • Jack Psenicska: Smashing Ursinus Football Recordshttps://digitalcommons.ursinus.edu/grizzlynews/1998/thumbnail.jp

The Grizzly, September 30, 2021

The Show Must go on! • Redrawing Democracy and Gerrymandering • What\u27s up with the Wi-Fi? • Feature: Professor Domenick Scudera • Opinions: Campus Guidelines - A Commuter Review; The Rise of Media Distrust • Sports on Main • Cross Country is Ranking uphttps://digitalcommons.ursinus.edu/grizzlynews/1968/thumbnail.jp

The Grizzly, November 17, 2022

Budgeting for Ursinus\u27 Future • Democrats Win Big in Pennsylvania Amidst Midterm Elections • Letter From the News Editor • A Year\u27s Worth of Plays in Two Days • Concerts This Weekend • Meet Dora Zeibekis \u2724 • Opinions: Senior Beer at the Senior Bar • Field Hockey Season Recap • From the Bench to Breaking Recordshttps://digitalcommons.ursinus.edu/grizzlynews/2001/thumbnail.jp

The Grizzly, February 10, 2022

A BEAR-y High-Tech Campus • Airtag Tracking Concerns Reach Ursinus Campus • Ursinus\u27 Newest Investment: KN95 Masks • Dr. Rebecca Jaroff\u27s Last Hurrah! • The Return of WVOU - Ursinus\u27 Voice • Opinions: Should Professors Ask Pronouns? • Spring Sports are Back! • Swimmer\u27s Retreathttps://digitalcommons.ursinus.edu/grizzlynews/1978/thumbnail.jp

The Grizzly, April 8, 2021

Anger About Admitted Students Day • Eligible Faculty, Staff, and Students Granted Opportunity to Participate in Vaccine Clinic • A Baden Presentation by Kneia DaCosta, Psychology Department • Ally Hendrikson \u2721: A Graduating Senior Interview • Kappa Alpha Psi Fraternity Incorporated • Opinion: The Enemy That Became my Friend; Nomadland Film Review • Spring Sports Week Two Recap • What is Next for Women\u27s LAX?https://digitalcommons.ursinus.edu/grizzlynews/1955/thumbnail.jp

The Grizzly, February 24, 2022

Meet the 2022 Commencement Speakers • Jobs, Internships and Networking, Oh My! • The Voice of Ursinus • Shivering With Anticipation for Rocky Horror • Who\u27s Who in WVOU? • Opinions: Bookstore Fresh Out of Textbooks • How Fabulous is the Fabulous App? • A Springly Check-inhttps://digitalcommons.ursinus.edu/grizzlynews/1980/thumbnail.jp

The Grizzly, March 23, 2023

Digital Spark Ignites Local Businesses • Advancement Office Stresses Importance of Student Giving • Are You Smarter Than a Freshman CIE Student? • Ná Bris Na Rútaí • The Comeback of the Pi Chi Poodles • Opinions: Housing Selection Difficulties; Printing Woes at Ursinus • Connor Huth: The Senior Walk-On Who Defied the Odds • Darby Rogers on a Winning Streakhttps://digitalcommons.ursinus.edu/grizzlynews/2009/thumbnail.jp

The Grizzly, September 14, 2023

Good Samaritan Policy Changes: Good Ideas? • Changes Across Wismer • Student Handbook Changes • Letter From the Editor • Hello From the News Editor • ODA\u27s Peer Mentor Program • Meet SGA President: Ben Douglas • Opinions: Upper Wismer\u27s Wonderful New Eats • Editor Introductions • UC Soccer on Fire! • Bears\u27 Football Comes Out of Hibernation With a Head of Steamhttps://digitalcommons.ursinus.edu/grizzlynews/2014/thumbnail.jp

The Grizzly, December 1, 2022

1000th Edition: A Brief Look at Past Eras of The Grizzly • How Important Are Our Archives? • Comments From Grizzly Alumni • Long-Running Professors • Grizzlies of Years Past • Opinions: Silly but Necessary - The Ranking of Stalls in the Myrin Women\u27s Bathroom • Check Out This Sports Column From the 90s Grizzly! • Congrats to the Football Team on Winning Their Game in the Centennial-MAC Bowl Conference Series! • The Mascot Evolutionhttps://digitalcommons.ursinus.edu/grizzlynews/2002/thumbnail.jp

Scoping studies to establish the capability and utility of a real-time bioaerosol sensor to characterise emissions from environmental sources

A novel dual excitation wavelength based bioaerosol sensor with multiple fluorescence bands called Spectral Intensity Bioaerosol Sensor (SIBS) has been assessed across five contrasting outdoor environments. The mean concentrations of total and fluorescent particles across the sites were highly variable being the highest at the agricultural farm (2.6 cm−3 and 0.48 cm−3, respectively) and the composting site (2.32 cm−3 and 0.46 cm−3, respectively) and the lowest at the dairy farm (1.03 cm−3 and 0.24 cm−3, respectively) and the sewage treatment works (1.03 cm−3 and 0.25 cm−3, respectively). In contrast, the number-weighted fluorescent fraction was lowest at the agricultural site (0.18) in comparison to the other sites indicating high variability in nature and magnitude of emissions from environmental sources. The fluorescence emissions data demonstrated that the spectra at different sites were multimodal with intensity differences largely at wavelengths located in secondary emission peaks for λex 280 and λex 370. This finding suggests differences in the molecular composition of emissions at these sites which can help to identify distinct fluorescence signature of different environmental sources. Overall this study demonstrated that SIBS provides additional spectral information compared to existing instruments and capability to resolve spectrally integrated signals from relevant biological fluorophores could improve selectivity and thus enhance discrimination and classification strategies for real-time characterisation of bioaerosols from environmental sources. However, detailed lab-based measurements in conjunction with real-world studies and improved numerical methods are required to optimise and validate these highly resolved spectral signatures with respect to the diverse atmospherically relevant biological fluorophores