Government urged to crack down on potentially illegal removal of factory fitted diesel particulate filters
Campaigners accuse Defra of covering up pollution figures as it plans to close up to 600 stations in England to save money
Utilities face 'pitiful' fines despite huge profits, with sewage spills cited as causing particular distress
Janez Potočnik says Brussels has invested €10m in project to tackle pollution related to heavy metals and water and waste treatment
Refrigerant producers threatening to release huge amounts of HFC-23 after ban on trading credits generated by destroying the gas
Commission official predicts any attempt to tighten limit values for tiny particulates would be rebuffed by member states
European Commission also preparing to sue UK over NO2 as part of air quality crackdown
London Assembly's Transport Committee says funding needs to be doubled to improve cycling in the capital in the long term
Green group says best outcome would be for UK Court to rapidly refer question of responsibility for enforcing law to EU Court of Justice
Formula E series chief says signing up China Racing could prove a powerful tool in fighting urban air pollution