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Table 5 Fourier transforms infrared spectroscopy analysis of kitchen indoor air samples

From: Indoor air pollution and its association with poor lung function, microalbuminuria and variations in blood pressure among kitchen workers in India: a cross-sectional study

Functional class

Functional group

Normal range (cm−1)

North Indian Kitchen (Spectra detected cm−1)

South Indian Kitchen (Spectra detected cm−1)

Alkane

C-H strech

2950-2850

2925.58,2930.41

2925.99,2950,2930.36

Alkene

C-H strech

3100-3010

3020.05

3019.08,3021.27

C = C Strech

1680-1620

ND

1634.08

Alkyne

C = C Strech

2260-2100

ND

2126.09,

Aromatic

C = C strech

1400-1600

1543.71, 1584.35

ND

Alcohol/Phenol

C-O strech

1150-1050

1068.65,1065.29,1068.25

1068.16,1080.18,1111.17

O-H strech

3550-3200

3399.78,3402.43,3399.79

3399.88,3417.45,3393.67,3400.75,3397.31

Carboxylic Acid

O-H strech

3000-2500

ND

2520.54,2839.84

Amine

C-N strech

1080-1360

1215.3,1154.96,1266.83

1154.88,1215.71,1216.02,1218.74

Amide

C = O strech

1690-1630

1638.74

1638.84,1634.08,1644.48,1644.08