Correlation between co-exposures to noise and air pollution from traffic sources

Background: Both air and noise pollution associated with motor vehicle traffic have been associated with cardiovascular disease. Similarities in pollution source and health outcome mean that there is potential for noise to confound studies of air pollution and cardiovascular disease, and vice versa, or for more complex interactions to occur. Methods: The correlations between 2-week average roadside concentrations of nitrogen dioxide (NO2) and nitrogen oxides (NOX) and short term average noise levels (Leq,5min) for 103 urban sites with varying traffic, environment and infrastructure characteristics were examined. Results: The Pearson correlation coefficient for Leq,5min and NO2 was 0.53, and for Leq,5min and NOX , 0.64. Factors influencing the degree of correlation were number of lanes on the closest road, number of cars or trucks during noise sampling and presence of a major intersection. Conclusions: We recommend measurement of both pollutants in future studies of traffic-related pollution and cardiovascular disease to allow for more sophisticated analysis of this relationship.

[1]  Henk M E Miedema,et al.  Hypertension and Road Traffic Noise Exposure , 2007, Journal of occupational and environmental medicine.

[2]  Michael Brauer,et al.  Application of land use regression to estimate long-term concentrations of traffic-related nitrogen oxides and fine particulate matter. , 2007, Environmental science & technology.

[3]  A. Tobías,et al.  Impact of urban air pollutants and noise levels over daily hospital admissions in children in Madrid: a time series analysis , 2006, International archives of occupational and environmental health.

[4]  Pavlos S. Kanaroglou,et al.  Establishing an air pollution monitoring network for intra-urban population exposure assessment: A location-allocation approach , 2005 .

[5]  Wolfgang Babisch,et al.  Traffic Noise and Risk of Myocardial Infarction , 2005, Epidemiology.

[6]  J. Samet,et al.  Air Pollution and Cardiovascular Disease: A Statement for Healthcare Professionals From the Expert Panel on Population and Prevention Science of the American Heart Association , 2004, Circulation.

[7]  H Lange-Asschenfeldt,et al.  Low frequency noise and stress: bronchitis and cortisol in children exposed chronically to traffic noise and exhaust fumes. , 2004, Noise & health.

[8]  A. Tobías,et al.  Use of Poisson regression and Box–Jenkins models to evaluate the short-term effects of environmental noise levels on daily emergency admissions in Madrid, Spain , 2004, European Journal of Epidemiology.

[9]  Bert Brunekreef,et al.  Association between mortality and indicators of traffic-related air pollution in the Netherlands: a cohort study , 2002, The Lancet.

[10]  W. Passchier,et al.  Noise exposure and public health. , 2000, Environmental health perspectives.

[11]  A. Bartoňová,et al.  Oslo traffic study - part 1: an integrated approach to assess the combined effects of noise and air pollution on annoyance , 2000 .

[12]  D. Dockery,et al.  An association between air pollution and mortality in six U.S. cities. , 1993, The New England journal of medicine.

[13]  H Ising,et al.  Traffic noise and cardiovascular risk. The Caerphilly study, first phase. Outdoor noise levels and risk factors. , 1988, Archives of environmental health.

[14]  M. Heckl.  Tyre noise generation , 1986 .