广州地铁一号线西起西朗站，东止广州火车东站，全线长１８．４９７km，共有１６座车站。１９９３年１２月动工起建，１９９８年全线建成，１９９９年６月２８日全线试运营。为了解运营前后一号线各站空气中的CO和CO２浓度及其变化情况，我们进行了调查。在全线１６个站的站厅 Guangzhou Metro Line West from the station Xilang, East Guangzhou East Railway Station, the entire length of 18.497km, a total of 16 stations. Starting construction in December 1993, completed in 1998 and completed trial operation on June 28, 1999. In order to understand the concentrations of CO and CO2 in the air at the stations before and after the operation and their changes, we conducted a survey. In the station across the board 16 stations