Below is information on the current background air quality in some of North America's major cities based on data taken from http://www.airnow.gov recorded at 1:10 pm GMT on May 22. 

What's happening in Europe on Wednesday: + EU summit focuses on tax evasion + Cameron holds Paris talks with Hollande + 'Only God Forgives' premieres at Cannes + Pussy Riot member pleads for jail release BRUSSELS: EU leaders open a summit from 1100 GMT, focused on energy policy and tax evasion. (EU-SUMMIT-ECONOMY-TAX-ENERGY). Picture. Video. PARIS: Fresh from their Brussels summit, French President Francois Hollande holds a working dinner with British Prime Minister David Cameron. Press statement at 1800 GMT. Picture. (FRANCE-BRITAIN-DIPLOMACY)

Below is information on the current background air quality in some of North America's major cities based on data taken from http://www.airnow.gov recorded at 12:50 pm GMT on May 21. 

Mexico City, May 20 (EFE).- Spain is enduring an economic crisis reminiscent of those that wracked Latin American countries in previous decades, but the Iberian nation is now in a position to emerge from recession thanks to the steps Madrid has taken over the last few years, experts said here Monday. "The country is moving, it has made peace with the losses, knows that the growth model of the past was not sustainable and is in transition to another model," the Inter-American Development Bank's chief economist, Spaniard Jose Juan Ruiz, said.