air quality objectivesmeans the limit values, target values and exposure concentration obligations for air quality set out in Directive 2008/50/EC and Directive 2004/107/EC of the European Parliament and of the Council;
anthropogenic emissionsmeans atmospheric emissions of pollutants associated with human activities;
BCmeans carbonaceous particulate matter that absorbs light;
emissionmeans the release of a substance from a point or diffuse source into the atmosphere;
international maritime trafficmeans journeys at sea and in coastal waters by water-borne vessels of all flags, except fishing vessels, that depart from the territory of one country and arrive in the territory of another country;
landing and take-off cyclemeans the cycle that includes taxi in and out, take-off, climb out, approach, landing and all other aircraft activities that take place below the altitude of 3000 feet;
national emission reduction commitmentmeans the Member States' obligation in the reduction of emissions of a substance;
NMVOCmeans all organic compounds other than methane, that are capable of producing photochemical oxidants by reaction with nitrogen oxides in the presence of sunlight;
ozone precursorsmeans nitrogen oxides, non-methane volatile organic compounds, methane, and carbon monoxide;
pollution control zonemeans a sea area not exceeding 200 nautical miles from the baselines from which the breadth of the territorial sea is measured, established by a Member State for the prevention, reduction and control of pollution from vessels in accordance with applicable international rules and standards;
SO2means all sulphur compounds expressed as sulphur dioxide, including sulphur trioxide (SO3), sulphuric acid (H2SO4), and reduced sulphur compounds such as hydrogen sulphide (H2S), mercaptans and dimethyl sulphides;
Union source-based air pollution control legislationmeans Union legislation which aims at reducing the emissions of air pollutants covered by this Directive by undertaking mitigation measures at the source.