1. Justin George, "For many essential workers, pubic transit is a fearful ride they must take," The Washington Post, https://www.washingtonpost.com/local/trafficandcommuting/for-many-essential-workers-public-transit-is-a-fearful-ride-they-must-take/2020/04/11/8dec874a-79ad-11ea-a130-df573469f094_story.html Date of Access: October 12, 2020
2. Aaron Gordon, "Bus Drivers on the Front Lines for Coronavirus Don't Have Safety Equipment" - Motherboard Tech by Vice, https://www.vice.com/en_us/article/wxek59/bus-drivers-on-the-front-lines-for-coronavirus-dont-have-safety-equipment Date of Access: October 12, 2020
3. Brink Q&A with Jarrett Walker, International Consultant of Public Transit Planning and Policy, "COVID-19 Has Killed Public Transport. How will it Recover?" - Marsh & McLennan Insights, https://www.brinknews.com/public-transportation-coronavirus-economic-impact-recovery-social-distance/ Date of Access: October 12, 2020
4. Katie Pyzyk, "US Census Bureau: Americans' commute times increased; transit ridership dropped ," Smart Cities Dive, https://www.smartcitiesdive.com/news/us-census-bureau-americans-commute-times-increased-transit-ridership-dro/533320/ Date of Access: October 12, 2020
5. Far-UV light, https://www.faruv.com/ Date of Access: October 12, 2020
6. Ozone air recirculation, https://www.micronpure.com/ Date of Access: October 12, 2020
7. “New CerroZone™ System Reduces Airborne COVID-19 by Over 99% in Under 30 Seconds,” Businesswire – a Berkshire Hathaway Company, https://www.businesswire.com/news/home/20201006006006/en/New-CerroZone%E2%84%A2-System-Reduces-Airborne-COVID-19-99 Date of Access: October 12, 2020
8. “Plasma Air Ionization Proven to Reduce Coronavirus Surrogate MS2 Bacteriophage by 99% in Independent Spanish Testing,” Cision PR Newswire, https://www.prnewswire.com/news-releases/plasma-air-ionization-proven-to-reduce-coronavirus-surrogate-ms2-bacteriophage-by-99-in-independent-spanish-testing-301076955.html Date of Access: October 12, 2020