Air pollution goes far beyond nasal symptoms (congestion and sneezing) and worsening of asthma/rhynitis

We now know that atmospheric pollution can help people develop myocardial infarction and deep vein thrombosis.
Sao Paulo´s pollution problem is very serious: we have the same levels Los Angeles had in 1970!
During winters, it is even worse because very rare rains do not "wash" pollution off and thermic inversions jkeep pollutants down in the air.