Calne residents are set to breathe a sigh of relief as authorities work together to tackle persistent odour issues in the town. A community drop-in event hosted by the Environment Agency will provide an opportunity for locals to engage directly with authorities and gain insight into the measures being taken to alleviate the problem.
The UK Health Security Agency's (UKHSA) public health risk assessment has shed light on the sources of the odours, which have been identified as hydrogen sulphide and methane. Air monitoring data collected by the Environment Agency suggests these gases are originating from the Lower Compton Landfill Site, a finding that aligns with previous inspections and assessments conducted by the Environment Agency.
According to Ben Shayler of the Environment Agency, the drop-in event will allow residents to understand the regulatory actions being taken against Hills Waste Solutions, the landfill operator. The Environment Agency has been working closely with Hills to implement improvement works, which are reportedly nearing completion. Continuous close regulation of the site remains a priority for the agency.
Lucy McCann, consultant in health protection at UKHSA South West, explained that while no toxicological risk was identified, there is evidence of 'odour annoyance'. Individuals react differently to hydrogen sulphide odour, and some may experience temporary symptoms such as headaches, nausea, or a sore throat. Those with pre-existing respiratory conditions may be particularly affected, and some residents could experience sleep disruption and stress.
The community drop-in event will feature representatives from the Environment Agency, UKHSA, Wiltshire Council, and Hills Waste Solutions. Attendees can seek information on air quality monitoring, regulatory methods, and site regulation from the Environment Agency. The UKHSA will provide insight into their technical assessment, while Wiltshire Council will address broader questions and concerns regarding odour nuisance and public health.
Hills Waste Solutions will also be present to discuss the changes they are implementing at the landfill site, which is subject to environmental permit conditions enforced by the Environment Agency. Wiltshire Council leads on odour nuisance investigations and public health matters, with support from the UKHSA.