Shah Reza Pahlavi was a brutal dictator, but his departure did not mean Iran was more free. The Shah was pro-west, and would brutally crack down on any dissent. He was replaced by Ayatollah Khomeini, who helped to install a religous dictatorship in Iran. Everything that the Shah had stood for --- including the western world --- was now seen with open contempt by the government.
The answer is if strong odor do not inhale, always cover
your nose or wear a face mask, then avoid breathing vapors because this might
harm your lungs and even damage something in your health and avoid skin contact
this might burn your skin or even hurt by the residue. Avoid inhalation and skin contact.
I believe the answer is the Ohio river.
South Americans is the answer I believe