How did Britain achieve the lowest air pollution record?


Air pollution in the UK has reached its lowest levels since records began, with three of the most problematic pollutants being nitrogen dioxide (NO2) And particles (PM2.5 And PM10They have fallen to completely low levels in the past year, the Department of Environment, Food and Rural Affairs says DEFRAThe annual decline in nitrogen dioxide levels is largely due to a reduction in emissions due to lockdowns and reduced traffic on normal roads.

According to the British newspaper “Daily Mail”, these pollutants are emitted at high levels by engines, industry, wood stoves and agriculture, and air pollution is increasingly associated with poor health, such as asthma, mental illness and even death.

Gas levels, which can cause respiratory distress and asthma, decreased in urban areas by about a quarter of 23% in 2020.

Intervals DEFRA In its report: “In 2020, roadside nitrogen dioxide concentrations were consistently lower than the average of the previous three years.”

The decrease in road traffic is also likely due to the restrictions COVID-19 A big contributing factor to the cuts NO2 during this period.

As for PM2.5They are small particles smaller than 2.5 microns that can creep into a person’s lungs, and the closure also causes depression.

The average annual figure for 2020 was 7.9 micrograms per cubic meter of air (micrograms / m3), down significantly from the 9.9 micrograms / m3 figure for 2019.

Britain remains committed to air quality guidelines first set by the European Commission, which set a maximum annual average of 25 mcg / m3.

A UK government spokesperson said: “These statistics show that there has been progress in improving air quality since 2010, as emissions of fine particulate matter have decreased (PM2.5) By 9%, while nitrogen oxide emissions decreased by 33%, their lowest level since the start of records.


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