The worst places for air pollution were linfen , lanzhou and urumqi in china , magnitogorsk in russia and mexico city .
空气污染最严重地区分别是中国的临汾、兰州和乌鲁木齐，俄罗斯的马格尼托哥尔斯克，以及墨西哥城。
In april , mr. medvedev made a speech in magnitogorsk in the urals , which analysts took as a manifesto for a new economic direction for russia , towards greater liberalization and the reduction of state control of the economy .
