ENVIRONMENTAL SCIENCES Correction for “Enduring legacy of a toxic fan via episodic redistribution of California gold mining debris,” by Michael Bliss Singer, Rolf Aalto, L. Allan James, Nina E. Kilham, John L. Higson, and Subhajit Ghoshal, which appeared in issue 46, November 12, 2013, of Proc Natl Acad Sci USA (110:18436–18441; first published October 28, 2013; 10.1073/pnas.1302295110).
The authors note that on page 18440, left column, second full paragraph, line 8 “Hg mass (∼200 kg)” should instead appear as “Hg mass (∼200 t).”