Mineral Processing Ltd - Air quality data

Between 09 April 2025 and 20 August 2025 we used a mobile monitoring facility (MMF) to monitor air quality data in the local area. The report from this monitoring can be found here South Elmsall main report

Our monitoring report includes information regarding measured concentrations of the gas hydrogen sulphide. The World Health Organisation (WHO) has published guidelines relating to potential impacts from hydrogen sulphide. The guidelines relate to levels above which substantial reports about odour annoyance can be expected and a level at which direct health impacts may occur.

Comparing the collected data from our study with the WHO guidelines showed that measured hydrogen sulphide concentrations were low compared to the health related guideline value but frequently exceeded the level above which substantial reports about odour annoyance would be expected.

UK Health Security Agency (UKHSA) has reviewed our monitoring report and produced an update that includes a risk assessment and advice. The full update can be viewed here UKHSA Health update for South Elmsall