From Green Car Congress: Sulfur is a found naturally in crude oil, and passes into refined gasoline when processed at a refinery. Industry and policymakers around the world have placed emphasis on reducing sulfur limits in fuels for decades, but variations in those limits remain.
All EU countries placed within the top 50; nearly 100% market penetration of “sulfur-free” (less than 10ppm) fuels is expected in the EU by 2009, furthering the region’s role as a leader in clean fuels. Some of the oil-rich nations like Qatar and the United Arab Emirates (UAE) also ranked in the top 50 for low sulfur limits in gasoline (Qatar 46th and UAE 41st). Other noteworthy rankings in the top 100 include Mexico (54th) and Venezuela (84th), China (53rd), India (55th) and Indonesia (76th). On the other hand, countries such as Brazil and Malaysia have made progress in the development of biofuels, but neither of these countries made it to the top 100 countries with the lowest sulfur limits in gasoline. At the bottom of the ranking, six nations from Africa, the former USSR, and the Middle East were tied for last place.
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