In 1988 the Mexican government adopted 100 Necessary Devices for the Environment as an action plan for countermeasures against atmospheric pollution in the Mexico City capital region, which had been worsening year by year. In 1989 the Integrated Plan Against Atmospheric Pollution in the Mexico City Capital Region, containing specific countermeasures, was adopted. The plan identified SO2 as one of the main atmospheric pollutants, and named power stations, factories and diesel-engine vehicles as the main sources of SO2 pollution. It called for a project to improve fuel oil (heavy oil, diesel) into low sulfur oil, and this loan project was implemented as a way of funding that SO2 reduction initiative.
Integrated environmental management
Latin America and Caribbean