The average concentration of persistent toxic substances (PTS) reached 166.57 micrograms per cubic meter. The internation standard is 75 micrograms per cubic meter.
Surprisingly, the latest averages mean pollution has actually been reduced by 19.4% compared to August 2005 and is at its lowest for this year.
Despite the high pollution level, the INEI emphasized that in August air quality in Lima showed a reduction of nitrogen dioxide, sulfur dioxide and lead.
The population of the Peruvian capital borders on eight million.