"pollutant","city","time"
14.62,"athens","morning"
14.07,"athens","evening"
17.39,"athens","morning"
16.17,"athens","evening"
16.76,"athens","morning"
15.49,"athens","evening"
16.80,"athens","morning"
16.81,"athens","evening"
15.17,"athens","morning"
12.81,"athens","evening"
14.17,"athens","morning"
16.61,"athens","evening"
14.10,"comer","morning"
15.17,"comer","evening"
15.06,"comer","morning"
13.82,"comer","evening"
15.39,"comer","morning"
13.79,"comer","evening"
14.68,"comer","morning"
15.93,"comer","evening"
16.37,"comer","morning"
16.17,"comer","evening"
16.30,"comer","morning"
15.19,"comer","evening"
17.94,"elberton","morning"
16.52,"elberton","evening"
18.12,"elberton","morning"
17.58,"elberton","evening"
15.87,"elberton","morning"
18.06,"elberton","evening"
18.01,"elberton","morning"
18.04,"elberton","evening"
16.74,"elberton","morning"
15.88,"elberton","evening"
16.73,"elberton","morning"
17.78,"elberton","evening"