Effects of atmospheric and manure surface conditions on H S emissions from an in-ground finisher hog manure slurry tank.

Hydrogen sulfide (H S) emitted by livestock operations can be detrimental to human health. The storage of hog manure is a significant agricultural source of H S emissions. H S emissions from a ground-level Midwestern hog finisher manure tank were measured for 8-20 days each quarter over a 15-month period.

Emissions of hydrogen sulfide from a western open-lot dairy.

Hydrogen sulfide (H S) emissions are considered hazardous to the environment. Animal agriculture operations must therefore report emissions exceeding a threshold to the National Response Center. Estimating the emissions from operations is needed because monitoring at all operations is not possible.

Hydrogen sulfide emissions from a midwestern manure slurry storage basin.

Hydrogen sulfide (H S) emissions from midwestern U.S. dairy lagoons are episodic and seasonal.

Variation in hydrogen sulfide emissions from a U.S. Midwest anaerobic dairy lagoon.

Hydrogen sulfide (H S) emissions from midwestern United States dairy anaerobic waste lagoons are episodic and seasonal. Emissions were modeled using an inverse diffusion model in conjunction with measured concentrations and turbulence. The potential for lagoon mixing was estimated by the Brunt frequency using a theoretical Fourier series temperature profile model constructed from measured air and lagoon temperatures.

Inhomogeneity of methane emissions from a dairy waste lagoon.

Unlabelled: Methane (CH4) is the dominant greenhouse gas emitted by animal agriculture manure. Since the gas is relatively insoluble in water, it is concentrated in discrete bubbles that rise through waste lagoons and burst at the surface. This results in lagoon emissions that are inhomogeneous in both space and time.

Manure ammonia and hydrogen sulfide emissions from a Western dairy storage basin.

The reporting of ammonia (NH) and hydrogen sulfide (HS) emissions from dairies to the federal government depends on the magnitude of the emissions. However, little is known about their daily NH and HS emissions and what influences those emissions. Emissions of NH and HS from two manure storage basins at a 4400-head western free-stall dairy were measured intermittently over 2 yr.

Hydrogen Sulfide Emissions from Sow Farm Lagoons across Climates Zones.

Hydrogen sulfide (HS) emissions were measured periodically over the course of 2 yr at three sow waste lagoons representing humid mesothermal (North Carolina, NC), humid microthermal (Indiana, IN), and semiarid (Oklahoma, OK) climates. Emissions were determined using a backward Lagrangian stochastic model in conjunction with line-sampled HS concentrations and measured turbulence. The median annual sow-specific (area-specific) lagoon emissions at the OK farm were approximately 1.