Since last month the “urban lung” has been capturing some of the air pollution in San José in the area of the Antigua Aduana (Old Customs House).
This special filter sees to raise the awareness about vehicle emissons and the damage they cause to health.
Researchers at the Universidad Nacional have been taking regular samples captured by the filter and will be releasing a report next month on their findings.
Air pollution in San José is the main cause of respiratory and reproductive problems and kidney failure, among other conditions.