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Location: Ministry Home > Air > Sulphur in gas > FAQ |
The combustion processes in a standard automotive engine turn the sulphur contained in gasoline into sulphur dioxide (SO2), which goes out the tail pipe and into the air every time you drive your car. SO2 is a key contributor to smog and acid rain.
Sulphur in gasoline accounts for one to two per cent of the total sulphur emissions that go into Ontario's air. While its province-wide contribution is small, sulphur in gas is a significant concern for human health in urban areas, where most gasoline-based emissions occur.
Significant emitters of sulphur dioxide are non-ferrous smelters, coal-fired power stations and petroleum refineries.
In a nutshell, the new regulation requires Ontario gasoline manufacturers, blenders and importers to provide the government with the average level of sulphur in their gasoline within 45 days after each calendar quarter has ended.
Ontario's reporting regulation aims to inform Ontarians of the significance of sulphur in gas as an air quality issue and to make public the sulphur levels of gasoline sold in Ontario.
The information provided by Ontario's new sulphur-in-gas regulation is not a precise shopping guide. The sulphur levels reported are based on refinery data, which may not reflect the actual sulphur level of the gasoline you are putting into your tank.
Yes. According to motor vehicle manufacturers, your car will run more efficiently, last longer and pollute less when running on lower-sulphur gasoline.
Ontario's new sulphur-in-gas reporting regulation will have minimal impact on gasoline prices. Any increase in the retail price of gasoline will occur as a result of refiners' investments in technologies to stay within federally-regulated sulphur limits.
Ontario's regulation will sunset on December 31, 2004, when a federally-regulated 30 ppm sulphur limit for gasoline becomes law on January 1, 2005.
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Last modified: Friday April 11 2008