According to the most recent top of the most polluted cities in the EU, the capital city of Romania is no. 1, followed by Sophia, Athens and Rome. The top is based on information collected in 2005, as the data collected previously were not processed yest. Given the growing number of cars overcrowding the streets of Bucharest, we can confirm that our dear Bucharest deserves the first prize. There is information that the main source of pollution in the capital of Romania is car traffic, the source of about 70% of air pollution. Then there come the power plants, industry, the building sites and the home heating. (A.E.)