Agence France-Presse: The European Commission’s final warning to Britain over its failure to comply with EU air quality rules has been described as “disappointing” by the government department responsible for the environment. Brussels issued the notice after dangerous PM10 particles were found to have exceeded EU limits in the Greater London urban area and Gibraltar. Britain faces court action and up to £300 million in fines if it fails to comply with regulations. ?It?s disappointing that the …