Did you know that a government initiative designed to boost the economy may have inadvertently worsened air quality in London? It's true! The 'Eat Out to Help Out' scheme, intended to revive the hospitality sector, has been linked to increased air pollution, adding another layer to its complex legacy.
It's already well-known that the 'Eat Out to Help Out' scheme, active during the summer of 2020, coincided with a rise in Covid-19 cases. But here's where it gets controversial: new research suggests this policy also contributed to a spike in air pollution, at a time when public health advice emphasized minimizing exposure to pollutants, especially for vulnerable individuals.
The 'Eat Out to Help Out' program offered discounts on meals at restaurants and pubs, operating for three days a week in August 2020. The aim was simple: to encourage people to dine out and support the struggling hospitality industry. However, a new analysis paints a more complicated picture.
Dr. Ian Chen from Imperial College London, while analyzing data from a monitoring site in Marylebone Road, noticed unusual peaks in air pollution. Initially, the team considered traffic as the primary culprit. But further investigation revealed a different story.
Examining the chemical 'fingerprints' of the pollutants, the researchers found they contained fatty acids from cooking. But the timing was off. The pollution peaks occurred each evening from Monday to Wednesday, directly correlating with the 'Eat Out to Help Out' scheme's operating days. The biggest peak of all happened on the Bank Holiday Monday at the end of August.
And this is the part most people miss: The pattern continued into September and October, indicating the policy had a lasting impact on consumer behavior and air pollution even after it ended. The study also revealed another source of pollution: chemicals typically associated with wood stoves, even though it was summer. Dr. Chen noted that they were able to link these emissions to cooking fuels like wood and charcoal, something that had never been observed before.
This brings up a critical point: commercial cooking is often overlooked in air pollution control efforts. Despite being recognized as a significant source of pollution in London and Manchester about 15 years ago, it still lacks adequate regulation. It's estimated that commercial cooking contributes around 8% of particle pollution in London, a figure that could be even higher if emissions from wood and charcoal are included.
Dr. David Green, also from Imperial College London, highlights the importance of this study in understanding how commercial cooking affects urban air quality. While the specific polluting restaurants are still unknown, the research provides enough evidence for regulators to start treating commercial kitchens as a significant and solvable source of urban air pollution.
Consider this: A 2018 study in Pittsburgh, Pennsylvania, showed that restaurant-related particle pollution can spread hundreds of meters into residential areas, even exceeding that from major roads. Furthermore, air pollution from airline catering at Gatwick has been detected in the countryside, approximately 500 meters away.
Dr. Chen emphasizes that as other pollution sources decrease in urban areas, commercial cooking is becoming the most significant source of particle pollution, yet it remains largely unregulated. He points out that technologies to remove particles and gases are available and effective, and are even required by law in Hong Kong.
What do you think? Does this change your perspective on the 'Eat Out to Help Out' scheme? Should commercial kitchens face stricter regulations? Share your thoughts in the comments below!
