What question did this study set out to answer?

To measure emissions of ammonia, NMVOC, and hydrogen sulphide from untreated pig slurry applied to grassland and assess the effects of slurry acidification.

July 26, 2026Biosystems EngineeringOpen Access

Ammonia, non-methane volatile organic compounds, and hydrogen sulphide emissions from untreated and acidified pig slurry applied to permanent grassland

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Authors

FPFlavia Dela Pierre JPJohanna Pedersen AFAnders Feilberg

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Overview

Randomized trial measures ammonia, NMVOC, and hydrogen sulphide emissions in grassland, suggesting acidification impacts emissions dynamics.

Key Points

To measure emissions of ammonia, NMVOC, and hydrogen sulphide from untreated pig slurry applied to grassland and assess the effects of slurry acidification.
Field application of untreated pig slurry using dynamic flux chambers and backward Lagrangian Stochastic methods.
Assessment of NH3, NMVOC, and H2S emissions post-application.
Testing varied dosages of sulphuric acid on NH3 and odour emissions from replicated plots.
Acidification did not affect NH3 emissions but significantly enhanced volatile fatty acids losses.
Dynamic flux chamber and micrometeorological methods yielded similar cumulative emissions for NH3 and NMVOC after untreated slurry application.
Low dry matter content may have led to lower NH3 fluxes, obscuring acidification effects.

Cite This Study

Pierre et al. (2026) studied this question.

synapsesocial.com/papers/6a65a3e4d3aea3239cd76bcf https://doi.org/10.1016/j.biosystemseng.2026.104553

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July 26, 2026Biosystems EngineeringOpen Access

Ammonia, non-methane volatile organic compounds, and hydrogen sulphide emissions from untreated and acidified pig slurry applied to permanent grassland

View Full Paper

Ask AI

Bookmark

Authors

FPFlavia Dela Pierre JPJohanna Pedersen AFAnders Feilberg

Discussion

Member takes

Overview

Randomized trial measures ammonia, NMVOC, and hydrogen sulphide emissions in grassland, suggesting acidification impacts emissions dynamics.

Key Points

To measure emissions of ammonia, NMVOC, and hydrogen sulphide from untreated pig slurry applied to grassland and assess the effects of slurry acidification.
Field application of untreated pig slurry using dynamic flux chambers and backward Lagrangian Stochastic methods.
Assessment of NH3, NMVOC, and H2S emissions post-application.
Testing varied dosages of sulphuric acid on NH3 and odour emissions from replicated plots.
Acidification did not affect NH3 emissions but significantly enhanced volatile fatty acids losses.
Dynamic flux chamber and micrometeorological methods yielded similar cumulative emissions for NH3 and NMVOC after untreated slurry application.
Low dry matter content may have led to lower NH3 fluxes, obscuring acidification effects.

Cite This Study

Pierre et al. (2026) studied this question.

synapsesocial.com/papers/6a65a3e4d3aea3239cd76bcf https://doi.org/10.1016/j.biosystemseng.2026.104553

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