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  2. Emission control area - Wikipedia

    en.wikipedia.org/wiki/Emission_Control_Area

    These "regulations set limits on sulfur oxide (SOx) and nitrogen oxide (NOx) emissions from ship exhausts and prohibit deliberate emissions of ozone-depleting substances." [ 1 ] The current convention is a combination of 1973 Convention and the 1978 Protocol.

  3. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    An emission performance standard is a limit that sets thresholds above which a different type of vehicle emissions control technology might be needed. While emission performance standards have been used to dictate limits for conventional pollutants such as oxides of nitrogen and oxides of sulphur (NO x and SO x ), [ 3 ] this regulatory ...

  4. Directive 2008/50/EC - Wikipedia

    en.wikipedia.org/wiki/Directive_2008/50/EC

    Directive 2008/50/EC, or the Ambient Air Quality Directive, is an EU directive which limits sulphur dioxide, NO 2 and other oxides of nitrogen, particulate matter (PM10, PM2.5), lead, benzene and carbon monoxide concentrations from 2010.

  5. National Ambient Air Quality Standards - Wikipedia

    en.wikipedia.org/wiki/National_Ambient_Air...

    Among these are nitric oxide (NO), nitrous oxide (N 2 O), and nitrogen dioxide (NO 2), all of which are covered in the NAAQS. NO 2 is the oxide measured and used as the indicator for the entire NO x family as it is of the most concern due to its quick formation and contribution to the formation of harmful ground level ozone. [18]

  6. Multi-effect Protocol - Wikipedia

    en.wikipedia.org/wiki/Multi-effect_Protocol

    Maximum sulfur content is specified for gas oil fuels (other than fuels used in vehicles) at 0.2% effective by July 2000 and 0.1% by January 2008. The details of the Protocol are identified in a series of Annexes that address specific pollutants and emission source sectors (e.g. Annex V: "Limit values for emissions of nitrogen oxides from ...

  7. Cruise ship pollution in Europe - Wikipedia

    en.wikipedia.org/wiki/Cruise_ship_pollution_in...

    Amongst other things, it prohibited any kind of dumping within three nautical miles of a coastline, and set limits on sulfur and nitrogen oxide emissions from ships. [16] In international law, the maximum sulfur oxide concentration in cruise ship emissions at full sea is 0.5% from 1 January 2020 onwards.

  8. Large Combustion Plant Directive - Wikipedia

    en.wikipedia.org/wiki/Large_Combustion_Plant...

    The directive specified emission limits for sulphur dioxide, nitrogen oxides, and dust. [2] The directive was issued in October 2001. It replaced the earlier EEC directive on large combustion plants, 88/609/EEC, issued in November 1988. [3] Under the terms of the directive, combustion plant built after 1987 had to comply with specific emissions ...

  9. Sulfur oxide - Wikipedia

    en.wikipedia.org/wiki/Sulfur_oxide

    Sulfur oxide refers to many types of sulfur and oxygen containing compounds such as SO, SO 2, SO 3, S 7 O 2, S 6 O 2, S 2 O 2, etc. Sulfur oxide (SO x) refers to one or more of the following: Lower sulfur oxides (S n O, S 7 O 2 and S 6 O 2) Sulfur monoxide (SO) and its dimer, Disulfur dioxide (S 2 O 2) Sulfur dioxide (SO 2) Sulfur trioxide (SO 3)