The case for a national ban on smoked fuels



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Air pollution is the biggest environmental health hazard in Europe, according to the European Environment Agency. It is estimated to cause 1,600 premature deaths a year in Ireland alone.

While gases such as carbon monoxide and ozone are dangerous in certain concentrations, the main threat is a microscopic particulate matter in the air with a diameter of less than 2.5 micrometers, known as PM2.5. This silent and virtually invisible killer can make asthma and chronic obstructive pulmonary disease (COPD) worse, leading to heart attacks and strokes.

There is no safe level of exposure to these microscopic particles, according to Professor John Wenger, director of the UCC’s Center for Atmospheric Chemistry Research.

Air pollution is made up of a complex chemical mix of gases and particles that have a major impact on both climate and health, Wenger says. Its insidious side is seen in research indicating that exposure to air pollution is likely related to the occurrence or severity of the Covid-19 infection.

In Ireland it comes out in a threatening way, he says, because of how we heat our homes and what fuel we burn. Now a national ban on all smoke-producing fuels is needed, he says, with support for those in energy poverty.

Led a study commissioned by EPA (known as sapphire) that clearly highlights what is at stake. The researchers analyzed the sources of particulate matter in Killarney, Birr and Enniscorthy, residential settings outside of areas where there was a ban on smoked coal at the time and where natural gas is not available. The study focused on the contribution of residential solid fuel burning to ambient PM2.5 levels in winter. Using “chemical fingerprints” of particles generated by the combustion of different solid fuels, he revealed that burning peat was the dominant source in each location, followed by wood and then coal.

“So it’s a solid fuel problem; it’s not a coal problem, ”Wenger says.

Average PM2.5 concentrations in Killarney and Enniscorthy were considerably higher than in Dublin and Cork despite having a fraction of their population.

New measures and policies are urgently needed to reduce harmful emissions from burning residential solid fuels across the country, the report concludes. A national ban on smoked charcoal “is unlikely to lead to significant improvements in air quality in small towns,” although Wenger agrees that it is a good first step.

The government program promises to extend the ban on smoked charcoal to new cities “and, during the term of office, move towards a total ban at the national level.” The ban on smoked charcoal has recently been extended to 13 cities, including Enniscorthy and Killarney.

However, Wenger’s strong message goes further: “We have to stop burning things.”

In short, the options are a national ban on smoked charcoal; a national ban on smoky fuels or the expansion of current Low Smoke Zones (LSZ).

Measures to reduce emissions of all solid fuels (peat, wood and coal) would be most successful in improving air quality in all urban centers, including small cities, it adds. Future efforts should address how homes are heated, “rather than trying to discourage the use of a specific solid fuel.”

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