Table 2 Statistic parameter and ANOVA tests of mean personal exposure for different groups
|  | Mean ± STD (μg/m3) | ||
|---|---|---|---|
PM2.5 | PM10 | PM1 | |
SOCIODEMOGRAPHIC | |||
Gender | Â | Â | * |
 Female | 35.85 ± 56.28 | 41.25 ± 60.81 | 18.36 ± 29.07 |
 Male | 40.38 ± 55.45 | 46.73 ± 61.65 | 20.80 ± 25.70 |
Age | *** | *** | *** |
 ≤30 | 38.55 ± 59.36 | 44.41 ± 64.42 | 19.72 ± 29.65 |
 > 30 | 37.65 ± 49.80 | 43.60 ± 55.94 | 19.48 ± 23.33 |
Education | *** | *** | *** |
 Bachelor’s degree or below | 44.40 ± 66.40 | 51.12 ± 71.86 | 22.67 ± 32.76 |
 Post-graduate degree | 31.64 ± 40.96 | 36.65 ± 46.47 | 16.40 ± 19.70 |
Marital status | Â | Â | Â |
 Single | 38.93 ± 58.76 | 44.65 ± 63.72 | 19.94 ± 29.07 |
 Married | 36.98 ± 50.57 | 43.16 ± 56.92 | 19.10 ± 24.26 |
Annual income, RMB | *** | *** | *** |
 Low-middle: <  150,000 | 43.64 ± 67.20 | 49.52 ± 71.36 | 22.58 ± 34.39 |
 Middle-high class: >  150,000 | 35.46 ± 48.97 | 41.36 ± 55.34 | 18.14 ± 22.93 |
TRAVEL BEHAVIOR | |||
Commute time to work, hours | *** | *** | ** |
 ≤ 1 | 36.58 ± 55.20 | 42.08 ± 60.14 | 18.96 ± 28.28 |
 > 1 | 41.14 ± 57.01 | 47.73 ± 63.19 | 20.83 ± 25.69 |
Own vehicle | *** | *** | *** |
 yes | 33.34 ± 48.20 | 38.66 ± 54.79 | 16.77 ± 22.67 |
 no | 40.30 ± 58.78 | 46.44 ± 63.77 | 20.86 ± 29.11 |
LIVING CONDITION | |||
Days suffered from passive smoking for more than 15 mins per week | ** | *** | * |
 0 | 37.06 ± 58.60 | 42.56 ± 63.38 | 19.11 ± 29.37 |
 > 1 | 40.25 ± 50.65 | 46.83 ± 57.34 | 20.56 ± 23.45 |
Have ventilation system at home or office | *** | *** | *** |
 yes | 35.58 ± 57.05 | 40.80 ± 61.51 | 18.37 ± 30.03 |
 no | 40.47 ± 54.78 | 46.94 ± 60.99 | 20.71 ± 24.87 |
HEALTH STATUS | |||
Body mass index, kg/m2 | *** | *** | *** |
 Normal (< 25) | 35.40 ± 53.69 | 40.91 ± 58.87 | 18.16 ± 27.08 |
 Overweight / Obese(≥25) | 46.37 ± 61.14 | 53.38 ± 67.03 | 23.91 ± 27.86 |
Respiratory diseases | * | ** | * |
 yes | 34.51 ± 46.60 | 39.67 ± 52.03 | 17.77 ± 21.18 |
 no | 38.21 ± 55.50 | 44.21 ± 61.03 | 19.67 ± 27.73 |