Assessment of Kitchen Air Pollution: Health Implications for the Residents of Ilorin South, Nigeria

Table 3

Concentrations of NO₂ in parts per million (ppm) and their AQI rating in selected households across the sampling points.

SP

Morning

Evening

LPG

AQI

Charcoal

AQI

Firewood

AQI

LPG

AQI

Charcoal

AQI

Firewood

AQI

SP 1

0.029 ± 0.001

A

0.066; ±0.002

B

0.139; ±0.001

C

0.031; ±0.002

A

0.067; ±0.040

B

0.178; ±0.001

C

SP 2

0.012 ± 0.000

A

0.061; ±0.001

B

0.103; ±0.000

C

0.025; ±0.003

A

0.062; ±0.005

B

0.104; ±0.000

C

SP 3

0.029 ± 0.001

A

0.055; ±0.003

B

0.352; ±0.002

C

0.028; ±0.000

A

0.056; ±0.001

B

0.353; ±0.004

C

SP 4

0.099 ± 0.002

B

0.119 ± 0.000

C

0.178; ±0.000

C

0.101; ±0.001

C

0.122; ±0.001

C

0.178; ±0.000

C

SP 5

0.049 ± 0.000

A

0.098; ±0.003

B

0.189; ±0.002

C

0.050; ±0.001

A

0.097; ±0.003

B

0.189; ±0.000

C

SP 6

0.030 ± 0.001

A

0.096; ±0.000

B

0.475; ±0.001

D

0.034 ± 0.003

A

0.098; ±001

B

0.475; ±0.002

D

SP 7

0.022 ± 0.003

A

0.053; ±0.000

A

0.474; ±0.002

D

0.036 ± 0.001

A

0.054; ±0.003

B

0.476; ±0.003

D

SP 8

0.040 ± 0.001

A

0.073; ±0.002

B

0.104; ±0.000

C

0.042 ± 0.000

A

0.075; ±0.002

B

0.106; ±0.000

C

SP 9

0.034 ± 0.000

A

0.092 ± 0.000

B

0.441; ±0.000

D

0.035 ± 0.001

A

0.094; ±0.003

B

0.443; ±0.000

D

SP 10

0.036 ± 0.000

A

0.070; ±0.003

B

0.089; ±0.000

B

0.040 ± 0.003

A

0.071; ±0.000

B

0.090; ±0.000

B

SP 11

0.033 ± 0.003

A

0.060; ±0.000

B

0.077; ±0.000

B

0.035 ± 0.000

A

0.061; ±0.003

B

0.079; ±0.003

B

A, good, B, moderate, C, unhealthy for sensitive groups, D, unhealthy, E, very unhealthy, and F, hazardous. SP, sampling points, LPG, liquefied petroleum gas, AQI, air quality index. Each value is an average ± standard deviation concentration value of the 3 households sampled within the sampling points.