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. Author manuscript; available in PMC: 2020 May 8.
Published in final edited form as: Free Radic Biol Med. 2019 Sep 19;145:33–41. doi: 10.1016/j.freeradbiomed.2019.09.016

Fig. 3.

Fig. 3.

NO induction by urban PMs. BV2 cells, a mouse microglia cell line, were exposed to various PMs (nPM, sPM, DEP: 10 μg/ml) or LPS (10 ng/ml) for 6 h; nitrite/nitrate in media was assayed by Greiss reagent. * Adjusted p-value < 0.05, N = 4.