Authors
Abstract
Background and Purpose: Photochemical smogs، CO، NO2 and SO2 are among the major air pollutants with known effects and complications. The present study was designed to investigate the density of these pollutants in Sabzevar، Iran.
Methods and Materials: this descriptive cross-sectional study intended to measure the air pollutants in different parts of Sazbevar، Iran. Sampling was done with stratified time sampling based on NIOSH 4800 and 6004 methods for SO2 and NO2، and method 6604 for CO. Sampling instruments included pump (debi 5 L/min)، impinger، detector tube and ratameter. Based on traffic intensity، four points in the city were located and observe for 12 months، three day a month and three times per day; total sample swere 324. Data analyssi was done in SPSS 16 usingdescriptive measures as well as Pearson correlation coefficient ad one-sample t-test.
Results: Significantly highest rate of CO intensity was observed in Mordad (August) (64.1 mg/m3) and Esfand (March) (63.11 mg/m3) (P
Keywords
)