I support Amendments 4 and 12, and I am most grateful to the noble Baroness, Lady Hayman of Ullock, for the superb way in which she introduced this group and encapsulated the strength of feeling about the importance of these amendments.
I remind the House that air pollutants reach every organ of the body. They affect growing foetal tissue, not just adults. They affect organs as they develop in children and throughout people’s lives. Very small particles are a particular problem because they stay suspended in the air for prolonged periods and have a propensity to penetrate the deep parts of the lung. Ultrafine particles are especially problematic because in many respects they behave like a gas. As particles become smaller—into the nano scale—their surface area increases exponentially, so chemicals carried on their surface are released into cells and become bioavailable as toxins in the mitochondria within cells. The damage goes throughout the body.
The WHO guidelines are health-based and due to be revised downwards. They will not remain at their current level for many years: they will get tighter, because large epidemiological studies have shown that there are no safe levels of pollutant exposure. I remind the Government that as far back as 2001 their own advisory committee on air quality stated:
“Impact analysis of policies or specific developments, whether for industry, transport, housing etc, should take account of the interlinkages of emissions of air quality and climate change pollutants”.
That has still not occurred.
To increase the relevance of air pollution controls in environments where people live and move around requires greater input that takes into account real-life exposures in different settings, especially urban environments where people work and live close to busy roads and the foci of traffic congestion.
It has been shown in the bay area of California that there is a direct link between health impacts and the levels of pollutants in the air. There are enormous impacts, even from a single two-hour commute in a car. That has been shown to increase human stress metabolism, with very clear differences between people with normal lungs and those who are asthmatic. People with asthma are particularly vulnerable to air pollution.
I stress that point because, in addition to the growing evidence that air pollutant exposure increases susceptibility to SARS-CoV-2 infection, as has already been said it enhances the severity of, and likelihood of death from, a lot of other lung diseases. It is all linked to the social determinants of health. Ella’s death illustrates the tragedy for many.
I remind the House again: the UK has the worst death rate for asthma in Europe and one of the highest incidences of asthma. I worry that short-term finance
is driving resistance from the Government, because monitoring levels of these very small particles requires different equipment from that in use at the moment. To avoid doing this properly, however, is a real false economy. Quite apart from tragic deaths, there is the cost to the health service and social care. By installing equipment to measure particulates equal to or less than 10 micrograms per metre cubed, the Government will be prepared and able to set an example to other nations when the WHO guidelines change.
This amendment sets a quality target with a deadline far enough ahead to be achievable. Delay will simply mean that we will be playing catch-up, rather than providing the leadership that is desperately needed.