title: Respiratory effects of air pollutants among nonsmoking traffic policemen of Patiala, India.
abstract: BACKGROUND
  Air pollution due to road traffic is a serious health hazard and thus the persons who are continuously exposed, may be at an increased risk. Although several studies have confirmed the ill effects of air pollutants on the lung function of traffic policemen, only a few have investigated the relationship between respiratory health and duration of exposure in this category of occupationally exposed persons.
  
  
  OBJECTIVE
  The study was carried out with the aim of evaluating the extent of impairment in lung function in traffic policemen in respect to an unexposed control group having the same age group.
  
  
  METHODS
  A cross-sectional study was conducted in which the spirometric parameters of a group of 100 nonsmoking traffic policemen, aged 20-55 years, working in and around Patiala city, were compared with those obtained in an age-matched control group, consisting of 100 healthy males, serving in the Punjab Police, who have never done traffic duty and are thus not exposed to traffic pollution. Lung function was done with MEDSPIROR. The data on the overall health status of the subjects was collected using the standard Respirator Medical Evaluation Questionnaire. The statistical analysis was carried out with SPSS PC software version 13.
  
  
  RESULTS
  Traffic policemen recorded a significant decline in various parameters, such as forced vital capacity (FVC), forced expiratory volume in one second (FEV(1)), and peak expiratory flow rate (PEFR) when compared with controls, and is probably due to exposure to vehicular pollution. It was also observed that in traffic policemen with >8 years of exposure, the values of FVC (2.7 L), FEV(1) (1.8 L), and PEFR (7.5 L/s) were significantly lower than those obtained in traffic policemen with <8 years of exposure, in whom the values were 2.9 L, 2.3 L, and 7.7 L/s for FVC, FEV(1), and PEFR, respectively.
  
  
  CONCLUSIONS
  The effect of pollution by vehicular exhausts may be responsible for these pulmonary function impairments.
authors.affiliation: Department of Physiology, Gian Sagar Medical College, Banur, India.
authors.forename: Sharat
authors.initials: S
authors.lastname: Gupta
authors.forename: Shallu
authors.initials: S
authors.lastname: Mittal
authors.forename: Avnish
authors.initials: A
authors.lastname: Kumar
authors.forename: Kamal D
authors.initials: KD
authors.lastname: Singh
references.citation: Ind Health. 2005 Oct;43(4):656-62
references.pmid: 16294920
references.citation: Epidemiology. 2008 Sep;19(5):690-701
references.pmid: 18703932
references.citation: J Asthma. 2009 Mar;46(2):118-21
references.pmid: 19253114
references.citation: Environ Pollut. 2000 Aug;109(2):321-5
references.pmid: 15092903
references.citation: Am J Respir Crit Care Med. 2007 Aug 15;176(4):377-84
references.pmid: 17446338
references.citation: Sci Total Environ. 1994 May 23;146-147:111-6
references.pmid: 7517067
references.citation: J Environ Sci Eng. 2004 Jan;46(1):33-40
references.pmid: 16649590
references.citation: Int J Occup Environ Health. 2001 Jan-Mar;7(1):23-30
references.pmid: 11210009
references.citation: Res Rep Health Eff Inst. 2009 Mar;(139):5-71; discussion 73-89
references.pmid: 19554969
references.citation: J Med Assoc Thai. 1999 May;82(5):435-43
references.pmid: 10443092
references.citation: Lung. 2003;181(5):291-302
references.pmid: 14705773
references.citation: Eur Respir J. 2001 Apr;17(4):733-46
references.pmid: 11401072
references.citation: Respir Med. 1994 Apr;88(4):241-4
references.pmid: 8036285
references.citation: J Med Assoc Thai. 1995 Dec;78(12):686-7
references.pmid: 8868013
references.citation: Arch Environ Health. 2003 Apr;58(4):201-7
references.pmid: 14655899
references.citation: Occup Environ Med. 2004 Apr;61(4):350-7
references.pmid: 15031394
references.citation: Med Lav. 2005 Jan-Feb;96(1):24-32
references.pmid: 15847105