Environment Bill — House of Lords, 2021-06-23
Topic: Health
Ilora Gillian Finlay (Crossbench, Unknown): My Lords, I have added my name to two amendments in this group, Amendments 20 and 49. These amendments deal with the same fundamental problem—the impact of air pollution on health. I declare my interests as I chaired the House of Lords Science and Technology Committee inquiry into allergies. I am a Bevan commissioner in Wales. Sadly, I also have family who are exposed to very high levels of pollution because of schooling. The dignified campaign of Ella Adoo-Kissi-Debrah’s mother, following her daughter’s tragic death, has shown us why health must be at the centre of air pollution strategies. These amendments are widely called for from across paediatric and child health, chest medicine and related disciplines, and by the Royal College of Physicians, the British Lung Foundation, Asthma UK and others Simply meeting limit values is not enough because there is no safe level of pollution exposure. Research in the last five years has shown that air pollutants reach every organ of the body with deleterious effects, ranging from damage to the foetus’s developing lungs in the womb, and the heart and brain, right through to damage to the adult body, causing accelerated ageing of organs throughout life. Very small particles—less than 2.5 micrometers—from anthropogenic sources are a particular problem. They stay suspended in the air for prolonged periods and have a propensity to penetrate deep into parts of the lung where gas exchange occurs. Ultra-fine particles are especially problematic because, in many ways, they behave like a gas. These particles damage the end organ in the lung, the alveoli or distant air sacs where essential lung function occurs The UK has the worst death rate from asthma in Europe and is one of the countries with the highest incidence overall. Exposure to air pollution is likely to be a key driver in this disorder, which takes lives and costs the NHS dear. As particles become smaller, their relative surface area increases, which means that chemicals carried on the surface also increase. They are then released into cells and, internally, within parts of cells such as the mitochondria where energy is produced, and they are the source of damaging oxidant chemicals The WHO guideline values for particulates are health based. They must be the basis of the minimum targets set, recognising that, in July this year, these will be further revised downwards. Large epidemiological studies have shown that there is no safe level of pollutant exposure and therefore no safe threshold. We have a huge problem. Eight thousand schools are in places which exceed air quality limits. Some 25% of all car journeys are school runs. One in four hospitals and one in three GP surgeries is in an area where air pollution is above the WHO limit for fine particulate matter. Twenty years ago, the Government’s own Air Quality Expert Group recommended, "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." To the shame of us all, this has not occurred Simplistic thresholds are not good enough for health. Health will not improve unless the chemical characteristics and sources of particles are tackled. Those from anthropogenic sources, such as diesel engines, and road and brake wear are likely to be far more toxic than particulates originating from geological or natural sources Daellenbach and colleagues’ recent research, published in Nature last November, points strongly to this type of man-produced particulates being most closely associated with adverse health outcomes. This type of particle is closely associated with tissue damage. They derive principally from traffic—from diesel, brake wear and tyre friction on the road surface, as well as from domestic biomass burning, such as log burners. Simply eliminating diesel engines will not be enough, unless braking systems, road surfaces and activities that generate particulates are tackled. It is worth noting that, during Covid, there have been reports of such air pollution actually worsening in some areas, due to the large number of small lorries and trucks involved in domestic deliveries.