Gideon Amos

It is a pleasure to serve with you in the Chair, Dr Murrison. I congratulate the hon. Member for South Leicestershire (Alberto Costa) on securing this important debate, which is of real concern to not only his constituents but those of Members around the country. As a child growing up in Somerset, I well remember the occasional roar of the neighbouring Dulcote quarry, which is now worked out. I no longer live near a quarry, so I do not experience the very genuine issues and concerns of those who do. In particular, significant concerns have been raised about respirable silica dust, especially when the particulate matter is PM₁₀ or smaller, which means that it is fewer than 10 micrometres across. Studies by the Health and Safety Executive have shown that respirable silica dust, inhaled over prolonged exposure—for example, by workers who do not receive proper protection—is potentially carcinogenic. It can lead to silicosis and other respiratory diseases. Environmental impacts from the dust, which could affect local residents, are therefore a concern to those who spend time near quarries. HSE studies of those environmental effects in 2002 and 2003 led it to conclude that no cases of silicosis have been documented among members of the general public in Great Britain, indicating that the levels of environmental exposure to silica dust are not sufficiently high to cause the occupational disease. Notwithstanding that finding, the impact of dust in residential environments is a genuine concern rightly held by many residents, and a potential hazard. As we have heard, the new Environment Act targets would reduce PM_2.5 concentration levels to no more than 10 micrograms per cubic metre by 2040. People also suffer wider immunity impacts from the dust, noise, vibration and flyrock that quarries emit. The fact that PM₁₀ and PM_2.5 pollutants can travel further than 250 metres and that IAQM guidance is under review emphasises those effects and immunity impacts. We must also remember that quarries are vital to the building of homes and other needed infrastructure. According to the Mineral Products Association, UK quarries produce 177 million tonnes of aggregates and support thousands of valuable jobs. On housing, the Liberal Democrats differ from the Government in that our ambition is for 150,000 council and social rent homes per year—but, to the extent that new homes are needed, we agree that quarrying in the UK needs to continue apace rather than be curtailed. None the less, health and wellbeing of the public is the main priority of the Liberal Democrats, and must be the main concern in this debate. We would therefore pass a new clean air Act to cover not just quarries, but all air pollution, based on World Health Organisation guidelines and enforced by a new air quality agency, including funding for local pollution centres and a new vehicle scrapping scheme for cleaner transport. Clean air is important not just around quarries, but across all our communities. While life expectancy in Somerset and the south west is higher than in other regions of the UK, in my constituency it differs by 10 years from one side of my hometown, Taunton, to the other. A report from Public Health England in 2018 attributed 250 deaths to black carbon—unburnt fuel from motor vehicles. As with quarries, there is little people can do about these sort of environmental health factors, but they still shorten people’s lives, sometimes by years. Therefore, as well as controlling quarries, we must do all we can to encourage people to replace their cars with zero emission vehicles at reasonable costs that they can afford. The Government must hold firm against the Conservatives and Reform, who seem no longer to care about that air pollution or the related deaths it causes. Flirting with climate deniers, the Conservatives want to reverse a position they once held, announcing that they will continue burning petrol in vehicles around people’s homes, schools and neighbourhoods. While it is welcome that the Government have set out a delivery plan for nature’s recovery, we are waiting for a commitment to a new clean air Act and for them to get on with giving regulators the powers and resources they need. Instead, we are seeing unacceptable cuts to DEFRA—and therefore to the Environment Agency, which among other things regulates quarries—of 1.9% in real terms this year. I turn now to the issue of buffer zones around quarries, which some hon. Members have raised. While imposing a buffer zone on an existing quarry—such as requiring a distance to residential properties to perhaps a kilometre—could detrimentally affect its operations, the imposition of some sort of environmental limit, as planning permissions already do, is an entirely reasonable proposition. Some have argued that introducing a buffer zone could be devastating for the thousands of jobs in the sector. If that is the case, it would be equally devastating, not to mention reckless, to suggest no buffer zones or limits at all between quarries and residential properties. Presumably, even the most ardent quarrier is willing to stop when they reach someone’s garden wall or the threshold of their front door. Therefore, in a very real sense, the question is where to draw the line. The Canadian example has much to commend it. For example, over the 600 metres under the Canadian rule, 100 dB from quarrying—a common level of noise from a building site—would degrade to around 40 dB. That is a typical level for background noise in residential areas—it is a little higher in cities. It has to be recognised, of course, that topography and other factors play a part in those calculations. Subject to assessment, Liberal Democrats would set in planning policy a buffer zone of 600 metres to 1 km for new quarrying consents. Local communities, through their elected councillors, should be empowered to impose such a zone and to make exceptions to it only in wholly exceptional circumstances. Sadly, the Government are going in entirely the wrong direction on the voices of local people being heard in planning.