Euro-4 Diesel Quality Needs Catching Up

Analyzing the amount of sulfur in Euro-4 diesel taken from 364 filling stations in 2018 indicated that only 40% of the fuel sold in the country complies with international standards, director of the Comprehensive Monitoring Office of the Department of Environment said.
"Sulfur level in fuel should not exceed 50 parts-per-million – the level set by the European Union," Shina Ansari was quoted as saying by ISNA.
Sulfur levels in 45% of the samples were between 50 ppm and 250 ppm, labeled as "unhealthy" and in 15% of the cases it exceeded 250 ppm that is labeled as "hazardous", she said.