September 7th, 2024
The Invisible Threat: Air pollution in the UK and the urgent need for action
The International Day of Clean Air for Blue Skies serves as a poignant reminder of the critical importance of clean air for our health and well-being. In the UK, despite significant strides in improving air quality over the past few decades, air pollution remains a persistent and insidious threat. The ramifications of this invisible danger are far-reaching, impacting not only our environment but also our health and economy.
The UK Health Forum and Imperial College London, in collaboration with Public Health England, conducted a modelling study to quantify the potential costs to the NHS and social care system due to the health impacts of fine particulate matter (PM2.5) and nitrogen dioxide (NO2). The study’s findings are alarming: the total NHS and social care cost due to PM2.5 and NO2 combined in 2017 was estimated to be £42.88 million, increasing to £157 million when diseases with less robust or emerging evidence for an association are included. The study further projected that between 2017 and 2025, the total cost to the NHS and social care of air pollution could reach a staggering £1.60 billion, potentially rising to £5.56 billion when including other diseases.
The health consequences of air pollution are equally concerning. The study estimated that in England, an alarming 1,327,424 new cases of disease could be attributable to PM2.5 air pollution levels by 2035 if current levels persist. The impact of NO2 is similarly dire, with an estimated 1,140,018 new cases of disease predicted to be attributable to NO2 by 2035.
The pervasive nature of air pollution in the UK is further evidenced by the fact that it frequently exceeds legal limits, particularly for NO2, leading to legal challenges against the UK government for its inadequate response. In fact, in 2021, the UK was found to have been in violation of legal air pollution limits for over a decade. After the ruling from the European Court of Justice, the UK government has been heavily criticised for its lack of action on air pollution, and there are concerns that the Office for Environmental Protection may not have the necessary power to enforce environmental regulations effectively.
Air pollution’s impact on children’s health is particularly alarming. Research has linked poor air quality to a significant proportion of childhood asthma cases, with some areas seeing a connection to 33% of cases. The Born in Bradford project has further revealed links between pollution and low birth weight, higher blood pressure, poorer brain development, and increased hospital visits for breathing difficulties in children.
The health risks associated with air pollution, especially for vulnerable groups like children and the elderly, are undeniable. It is particularly alarming that a study published in the Archives of Disease in Childhood found that 86% of planned new schools in England are located in areas exceeding World Health Organization air quality targets, potentially exposing children to harmful pollutants during their formative years.
The situation in Bradford is a stark illustration of the air pollution crisis in the UK. The city grapples with illegal levels of pollution, concentrated in deprived inner-city areas, resulting in an estimated 500 annual deaths from respiratory diseases. An alarming one-third of asthma cases in Bradford are attributed to air pollution. To combat this, Bradford has become the fourth city in the UK to implement a Clean Air Zone (CAZ), targeting commercial vehicles to reduce emissions. The Born in Bradford project is actively involved in evaluating the impact of the CAZ on health, using data from over 530,000 residents. They have also engaged with communities and schools, training over 200 primary school pupils as “citizen scientists” to monitor pollution levels and co-create solutions.
The International Day of Clean Air for Blue Skies is a call to action. We must recognise that clean air is not a luxury but a fundamental human right. It is pertinent that we continue to advocate for stricter air quality standards to ensure the health and wellbeing of the public. The health and economic benefits of clean air are undeniable, and it is our collective responsibility to ensure that future generations can breathe freely and thrive in a healthy environment.