. Author manuscript; available in PMC: 2018 Dec 1.

Published in final edited form as: Nitric Oxide. 2017 Oct 7;71:1–13. doi: 10.1016/j.niox.2017.09.011

Table 2.

Yearly Industrial Releases (lbs) for Hydrogen Sulfide, U.S., 2012–14[48, 50].

	2012 (% of total)	2013 (% of total)	2014 Emissions (% of total)
Total On-site Disposal or Other Releases	26,175,250 (99.96%)	26,920,643 (99.8%)	25,965,719 (99.8%)
Fugitive Air Emissions	9,815,319 (37%)	9,958,673 (37%)	9,083,805 (35%)
Point Source Air Emissions	10,754,996 (41%)	11,931,036 (44%)	11,486,797 (44%)
Surface Water Discharges	497,709 (2%)	513,188 (2%)	543,028 (2%)
Underground Injection Class I Wells	4,700,126 (18%)	4,153,417 (15%)	4,490,400 (17%)
Total Off-site Disposal or Other Releases	11,631 (0.04%)	46,021 (0.2%)	54,339 (0.2%)
Off-site RCRA Subtitle C Landfills and Other Landfills	3,834 (0.01%)	13,136 (0.05%)	9,078 (0.03%)
Total On- and Off-site Disposal or Other Releases	26,186,881 (100%)	26,966,663 (100%)	26,020,057 (100%)