susceptible populations should reduce outdoor activities appropriate time .

According to But friends and parents call and did not stop running around the city on New Year’s scheduled start .

It is understood that after New Year’s Day around the city of Lanzhou race has been held for 39 sessions , held on New Year’s Day this year, the 40th entered the competition to run around the city the number of over 10000.

Event organizers said the event aims Lanzhou Municipal Environmental Protection Bureau data released in 2011 December 25 to 31 week period , Lanzhou air quality index (PM10) were higher than 136 , is light pollution .

Start the day running around the city ‘s air quality even worse , pollution index of 216 , moderate pollution , the primary pollutant is particulate matter . In weather conditions , susceptible populations should reduce outdoor activities appropriate time .

Friends ‘ smiling killer City race. However, parents and friends of the appeal and failed to stop the event on track.

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