Diesel is not solely responsible for high concentrations of particles in the atmosphere. The high use of coal in Germany and district heating also contribute.
In the episode of pollution that affects more than half of French territory, individual diesel transport vehicles in particular are singled out. The measures demonstrated: free public transport and obligation for road around Paris. But these days, a factor is aggravating the situation. Subjected to a gentle flow of air from the north-east, the Hexagon sees fold of air masses from Germany.
However, since the commitment of its energy transition and nuclear exit, Germany uses more coal, a CO2 emitter fuel but also of fine particles. In 2013, Germany produced nearly 162 billion kWh due to its thermal coal plants, an increase of 6.5% to 44 % of its electricity mix. This is the highest level since the reunification of the FRG and the GDR in 1990. France also saw its coal production rose by 14 % in 2013, but this source accounts for only 3.6% of the electricity mix.
If you believe a Airparif study, then pollution knows no borders. Regarding France, 68 % of the fine particle pollution is imported from other regions or other countries. No doubt that the contribution of the German energy industry in the current episode of pollution is significant.
Another important source of particle concentration is heating during winter. Also according Airparif, residential and tertiary heating is responsible for almost 22% of particulate emissions, compared to 25 % from road traffic (excluding the path of the device). Mix heating up in France heat gas (29%), electrical (26 %) and oil (24 %). Wood accounts for about 10% of residential heating, but has nearly 84% of emissions of fine particles.