Agence France-Presse: The Eiffel tower disappeared behind a brown smog on Wednesday as Paris and much of northern France suffered a spike in pollution.
The pollution levels are consistent. If we dont go over the alert level, we wont be far away, said Airparif, the body responsible for monitoring air quality in the greater Paris region.
In Paris, authorities measure the concentration of particulates with a diameter of less than 10 microns so-called PM10 in the air to determine pollution levels.
These particulates...