Italy, a country often associated with la dolce vita, now holds a less enviable distinction: the highest local concentrations of PM2.5 fine particulate matter in Europe, according to the European Environment Agency’s (EEA) latest Air Quality Status report. The data, covering 2024–2025, reveals that southern Italy’s towns of Ceglie Messapica and Torchiarolo recorded annual averages of 117 and 113 µg/m³ respectively—more than four times the EU’s annual limit of 25 µg/m³.
Why Southern Italy’s Air Is So Toxic
These spikes are not primarily due to industrial activity but to a seasonal practice. “As we’ve seen in the past, those spikes are mainly caused by biomass burning during the winter — mostly from fireplaces,” explained Gianluigi De Gennaro, a professor of chemistry and environmental impact at Bari University. He added that the problem is compounded by meteorological conditions: “Pollution becomes more severe due to the atmosphere’s reduced ability to disperse harmful particles in that area at that time of the year.” This is linked to a lower, denser planetary boundary layer—the lowest part of the atmosphere, extending up to around 3,000 metres—which traps pollutants close to the ground.
Northern Italy, the country’s industrial heartland, also shows a dense cluster of monitoring stations where annual PM2.5 levels hover near the 25 µg/m³ threshold, reflecting emissions from road traffic, refineries, cement plants, and fossil fuel combustion.
Beyond Italy: Hotspots Across the Continent
Italy is not alone. During the same period, regions in eight other EU and non-EU countries exceeded the EU limit: Poland, Croatia, Bosnia and Herzegovina, Serbia, North Macedonia, Romania, Turkey, and even Denmark, where a site in Copenhagen recorded a striking 95 µg/m³. Some of the highest concentrations of these “red dots” appear in Sarajevo and North Macedonia’s industrial zones.
The health consequences are stark. The Balkans and Eastern Europe—including Albania, Bulgaria, Greece, and Romania—have the highest estimated mortality rates per 100,000 people linked to long-term PM2.5 exposure. Italy’s rate (101 per 100,000) is far higher than similarly sized countries such as Spain (41), France (34), and Germany (37). The lowest rates are all in northern Europe: Iceland, Finland, Sweden, Estonia, and Norway. Overall, more than nine in ten Europeans are exposed to unsafe air pollution concentrations when measured against the stricter World Health Organization (WHO) standard of just 5 µg/m³.
These findings are consistent with broader research linking air pollution to rising health risks, including stroke, as highlighted in a recent global study. Climate Change and Air Pollution Drive Rising Stroke Risk, Global Study Warns.
Other Pollutants to Watch
PM2.5 is not the only threat. The EEA notes that “air quality continues to improve, but in up to 20% of monitoring stations in Europe, air pollution is still above the current EU air quality standards.” Other dangerous pollutants include PM10 (coarse inhalable particles), ground-level ozone (formed when sunlight reacts with hydrocarbons and nitrogen oxides from vehicles and smokestacks, and whose levels have more than doubled since 1900), and benzo(a)pyrene (BaP), a carcinogen from cigarette smoke, charred food, and fossil fuel exhaust. A separate report has warned that air pollution’s carcinogenic reach extends to liver and breast cancer.
How to Protect Yourself
Experts recommend simple preventive measures. De Gennaro advises urban residents to avoid airing out homes during peak traffic hours—after 9:00 am is safer. Air purifiers can help indoors. The EEA also urges using only certified burning stoves, avoiding fuel burning on winter days, and refraining from outdoor activities like running during periods of high pollution. Staying informed via apps that provide real-time, geolocalised air quality data is also useful.
As European countries grapple with these challenges, the data underscores that air pollution remains a continent-wide crisis, with the most severe impacts concentrated in southern and eastern Europe.
