Effects of exposure to rice-crop residue burning smoke on pulmonary functions and Oxygen Saturation level of human beings in Patiala (India)

2012, 24(1), 169-176 (Eng) Pulmonary function tests (PFT; e.g., force vital capacity [FVC], force expiratory volume in 1-s [FEV1], peak expiratory flow [PEF], force expiratory flow between 25 and 75% of FVC [FEF25-75%]) and O2 saturation (SpO2) levels of 50 healthy inhabitants in relation to rice crop residue burning were examined for 3 rice cultivation periods from 2007 to 2009. Subjects were residents of 5 sampling sites in Patiala, India. Suspended particulate matter (SPM), SO2, NO2, and particulate matter (PM10, PM2.5) concentrations were measured by using a high volume sampler and cascade Anderson impactor. Results showed rice crop residue burning increased the ambient air pollution level and respectively. PFT values significantly decreased. No significant change was observed in SpO2 level during rice crop residue burning. In 2008, a 10 íg/m3 increase in PM2.5, PM10, SPM, and NO2 was significantly associated with a decrease in predicted FVC percentages: -1.541, -1.002, -1.178, -0.232%, respectively. The authors concluded that air quality decrease due to open rice crop residue burning had a sub-acute effect on pulmonary functions of healthy subjects; SO2 and NO2 pollution had less adverse effects on pulmonary functions than different sized particulate matter.

Authors: Agarwal, Ravinder; Awasthi, Amit; Singh, Nirankar; Gupta, Prabhat Kumar; Mittal, Susheel K. ;Full Source: Science of the Total Environment [online computer file] 2012, 429, 161-166 (Eng) ;