EU air quality rules demand countries cut exposure to harmful fine particulate matter, such as microscopic specks of dust and soot caused by burning petrol. There are also caps on emissions of particulate matter, ozone and nitrogen dioxide.
Breathing in the particulates can cause respiratory illnesses such as asthma and heart disease, especially in children.
While 23 of the bloc’s 28 member states fall short of the rules, Britain is among the worst offenders.
At the end of January, EU Environment Commissioner Karmenu Vella called a meeting of ministers from the UK, Czech Republic, Germany, Spain, France, Italy, Hungary, Romania and Slovakia in Brussels.
The commission said the summit was to give the countries a last chance to prove they were serious about taking the steps to bring them into line with the rules.
On Monday, Mr Vella told MEPs in the European Parliament’s environment committee that a number of countries had failed the test.
“We will go ahead and refer these member states to the Court,” the Maltese commissioner said, “We have to take action.”
Without naming the countries, Mr Vella said he would ask that all EU commissioners back his recommendation at their weekly meeting at the end of April.