From the Guardian - with high nitrogen dioxide levels in Spanish capital, council is on verge of halving number of cars allowed in
"Madrid’s city council is on the verge of temporarily slashing the number of cars allowed into the city centre by half as the Spanish capital struggles with high levels of air pollution.
With levels of nitrogen dioxide rising above permitted levels, the city authorities have activated a series of anti-pollution measures, reducing the speed limit on the M30 orbital motorway around the centre and banning parking in the area for non-residents. Authorities are also urging people to use public transport wherever possible.
The boina, or beret, of smog that hovers over Madrid prompted the council to introduce a raft of strict traffic protocols last year. In mid-November 2015,nitrogen dioxide levels in the city centre reached almost double the World Health Organisation (WHO) guidelines.
On Tuesday, the council said that although the threshold had been met to enact a measure forbidding 50% of vehicles from entering the centre – those with number plates ending in even numbers allowed on even days and those ending in odd ones on odd days – the move would be suspended because many people were returning from the long All Saints’ Day bank holiday weekend."
The full article can be read here.