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. Author manuscript; available in PMC: 2020 Nov 25.
Published in final edited form as: Inhal Toxicol. 2019 Nov 25;31(9-10):368–375. doi: 10.1080/08958378.2019.1694109

Figure 1.

Figure 1.

PM2.5 generated by a typical bout of rodent digging activity (and several preceding minutes). The cage housed two rodents with pine shaving bedding material. The one-rodent digging bout lasted approximately 1 minute.