Hong Kong choking on smog terrible Facts Hong Kong choking on smog strongest, recently recorded in the city. Concentration of hazardous substances has increased so much that the…

Hong Kong choking on smog strongest, recently recorded in the city. Concentration of hazardous substances has increased so much that the government encouraged people with heart and respiratory…

The air pollution in Athens reached frightening figures. And in the summer and winter in the city you can watch a real smog. Its appearance is attributed to…