Table 3 Indoor air quality in kitchens
Indicators | Urban (n = 32) | Rural (n = 49) | ||
|---|---|---|---|---|
During cooking (n = 13) | During non-cooking (n = 19) | During cooking (n = 15) | During non-cooking (n = 34) | |
Winter | ||||
Temperature (°C) | 27.7 ± 2.6 | 27.8 ± 2.9# | 27.2 ± 3.7 | 25.8 ± 1.9 |
Humidity (%) | 49.3 ± 8.2 | 48.9 ± 7.2# | 54.1 ± 8.9 | 55.1 ± 7.5 |
CO (ppm) | 7.6 ± 11.2 | 3.2 ± 4.3# | 2.8 ± 3.7 | 0.4 ± 0.6 |
CO2 (ppm) | 662 ± 215# | 687 ± 253# | 497 ± 13 | 500.0 ± 0.0 |
Dust particles (mg/m3) | 1.051 ± 1.106# | 0.477 ± 0.311# | 0.250 ± 0.049* | 0.151 ± 0.071 |
Summer | ||||
Temperature (°C) | 31.0 ± 1.6 | 31.9 ± 1.6 | 31.7 ± 1.3 | 31.0 ± 2.0 |
Humidity (%) | 81.2 ± 7.2 | 75.8 ± 7.7 | 78.3 ± 5.3 | 78.0 ± 10.3 |
CO (ppm) | 19.6 ± 15.1#,* | 5.4 ± 8.9# | 1.3 ± 1.1* | 0.1 ± 0.3 |
CO2 (ppm) | 858 ± 278# | 878 ± 310# | 600 ± 197 | 539 ± 154 |
Dust particles (mg/m3) | 0.633 ± 0.727 | 0.238 ± 0.260# | 0.196 ± 0.137* | 0.087 ± 0.091 |