At that time the Secretary of Health of the District with the collaboration of the Japanese International Cooperation Agency (CIA) pursued a study in order to determine the air quality of the city. This study concluded that the most important source of pollution in Bogota was automobiles; 70% of the pollution could be attributed to cars. Another very important source of pollution was found to be bricks and battery plants, among others.
The study conducted with the support of CIA identified for the first time the imposition of air pollution in Bogota and its principal components. These were identified to be the following: Sulfur Dioxide (SYS), Nitrogen Oxides (Knox), Total Suspended Particles (TTS), Carbon Monoxide (CO), Hydrocarbons (HOC), and Ozone (03). It was estimated that 75% of the pollutants’ annual emissions correspond to Particulate Matter. The study determined that the levels of CO, HOC, SYS and Particulate Matter were not above the limits defined as safe by the WHO.
Water Pollution In Colombia
This led to CIA ‘s inclusion that: in 1990-1991 air pollution in Bogota did not reach levels of concern to the local authorities. Nevertheless, the rapid growth in the number of cars in Bogota during the last decade originated additional interest in this matter.