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. 2007 Mar 31;4(1):39–44. doi: 10.3390/ijerph2007010007

Table 6:

NO2 and CO concentrations in different kitchen locations

NO2(ppb) CO (ppm)

Indoors Outdoors Indoors Outdoors


Living room Separate house Living room Separate house
Mean 23.2 16.4 2.7 13 14 16
SD 23.3 11.9 1.6 8 8 9
Min 2.9 2.1 2.0 2 7 ND
Max 206.0 109.6 58.7 33 29 38