between 2017 and 2025 the total cost to the NHS and social care system of air pollutants , for which there is more robust evidence for an association, will be £1.6 billion. In the UK, air pollution is the largest environmental risk to public health. Ozone is a gas made up of three oxygen atoms which enters the air from motor vehicle exhaust, industrial emissions, and natural sources. Ozone is naturally present approximately 10 to 30 miles above the earth’s surface where it protects us from the sun’s harmful rays. However, at ground-level ozone creates smog and can trigger a variety of health problems including asthma and other respiratory illnesses. Fine particulate matter consists of small, airborne particles with a diameter of 2.5 micrometers or less. PM2.5 that can penetrate deep into the lungs, causing inflammation of the airways, exacerbating lung and heart disease, increasing hospital admissions and contributing to premature mortality. Sources of PM2.5 include all types of combustion sources,
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