Litter origins, accumulation rates, and hierarchical composition on urban roadsides of the Inland Empire, California by Win Cowger, Andrew Gray, Hannah Hapich, Jasmine Osei-Enin, Salvador Olguin Jr, Britney Huynh, Hinako Nogi, Samiksha Singh, Stanley Brownlee, Jonathan Fong, Trevor Lok, Gideon Singer, Hoori Ajami

“…The identified branded objects were from the primary manufacturers (Philip Morris (4, 2%–7%), Mars Incorporated (2, 1%–3%), RJ Reynolds (2, 1%–3%), and Jack in The Box (1, 1%–3%)), but unbranded objects were prevalent. …”
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