My Lords, I have my name on several of these amendments—namely, Amendment 150A and Amendments 156A to 156M—and I support the others in this group.
Following the 1952 smogs, the Clean Air Act, as we have already heard, came in in 1956 and cut coal smoke from homes. In the 1970s, the output from power stations was high in sulphur dioxide, causing acid rain. Now, there is a lot of research to show that a major source of different particles is exhaust fumes from burning liquid fossil fuels. In 2018, the World Health Organization recognised the effects of these ultra-fine particulates, which are implicated in about 8.8 million excess deaths—around 13% of all deaths globally.
The report The Lifelong Impact of Air Pollution, from the Royal College of Physicians, has shown that it costs £20 billion in the UK alone, through 40,000 deaths per annum, ranging from heart disease, asthma, chronic obstructive pulmonary disease, lung cancer, diabetes and dementia—which are all linked to atmospheric pollution.
Our death rates from asthma are the worst in Europe. Three people die every day in the UK from asthma. It costs us £1 billion a year and there are more than 5.5 million people having treatment for asthma now. People with a genetic predisposition to asthma living by main roads have worse outcomes. It does seem there are some groups in the BAME community who have a particular genetic predisposition to a type of asthma that is particularly liable to lead to death. There have been 12,700 asthma deaths in England and Wales since 2010.
The role of atmospheric pollution was shown clearly and graphically by Professor Stephen Holgate to map against Ella Adoo-Kissi-Debrah’s very severe asthma attacks, including her final and fatal attack, with spikes of nitrous oxide and particulates corresponding clearly to her severe exacerbations. These particulates from fossil fuel exhausts also cross the placenta into the foetus, resulting in a higher incidence of asthma and impaired brain development.
This means it is essential that we tackle this on every front to come into line the WHO guidance as a minimum. We cannot tolerate continuing to allow particulate air pollution, and we must harness positive behaviour and change behaviours. The impact, in fewer heart attacks, strokes and deaths from asthma and lung cancer, would be phenomenal. That is why I added my name to Amendments 156A to 156M, because there is a need to give local authorities the power that they need to protect their own populations.
I will turn briefly to speed restrictions, so comprehensively introduced by the noble Baroness, Lady Sheehan. I endorse every point that she made. Let us not forget that 20 million children have their homes and schools in areas of high air pollution, particularly from traffic.
The report The State of the Evidence on 20mph Speed Limits, by Dr Adrian Davis from Bristol, provides a comprehensive review of the literature. Dropping the speed limit from 30 mph to 20 mph decreases particulates from petrol and particularly from diesel, as well as decreasing nitrous oxide and CO2 emissions from diesel cars. Road traffic is responsible for 80% of particulate production, and diesel produces tenfold more particulates than petrol. When children are sitting in a car in a traffic jam, their exposure is even higher because cars draw in the surrounding air, which is laden with exhaust from other vehicles.
It has been estimated that a cut from 30 mph to 20 mph on urban roads would result in a drop of over 115 deaths from particulates alone, quite apart from the lower death rate in accidents. When traffic is less aggressive and moving more smoothly in urban areas, there is almost no significant delay in getting somewhere but the whole driving experience is calmer and safer. I should declare that I experience this, because I live in the Cardiff pilot area that has dropped from 30 mph to 20 mph and the benefit is tangible. I hope that the Government can support these amendments.