Dust from the Sahara Desert blown north by strong seasonal winds to France did not only bring stunning light and sunsets - it also carried abnormal levels of radiation.
That's according to French NGO Acro (Association for Control of Radioactivity in the West), which monitors levels of radiation.
The radiation is not considered dangerous for human health but it did arrive in France with a big dollop of irony.
Acro said it comes from nuclear tests carried out by France in the Algerian desert at the beginning of the 1960s, when the North African country was a French overseas territory.