Back to Search
Start Over
Local determinants of road traffic noise levels versus determinants of air pollution levels in a Mediterranean city
- Source :
- Environmental Research, Environmental Research, Elsevier, 2011, 111 (1), pp.177-83. ⟨10.1016/j.envres.2010.10.013⟩
- Publication Year :
- 2010
-
Abstract
- International audience; BACKGROUND: Both traffic-related noise and air pollution have been associated with cardiovascular disease (CVD). Spatial correlations between these environmental stressors may entail mutual confounding in epidemiological studies investigating their long-term effects. Few studies have investigated their correlation - none in Spain - and results differ among cities. OBJECTIVES: We assessed the contribution of urban land-use and traffic variables to the noise-air pollution correlation in Girona town, where an investigation of the chronic effects of air pollution and noise on CVD takes place (REGICOR-AIR). METHODOLOGY: Outdoor annual mean concentrations of nitrogen dioxide (NO(2)) derived from monthly passive sampler measurements were obtained at 83 residential locations. Long-term average traffic-related noise levels from a validated model were assigned to each residence. Linear regression models were fitted both for NO(2) and noise. RESULTS: The correlation between NO(2) and noise (L(24h)) was 0.62. However, the correlation differed across the urban space, with lower correlations at sites with higher traffic density and in the modern downtown. Traffic density, distance from the location to the sidewalk and building density nearby explained 35.6% and 73.2% of the variability of NO(2) and noise levels, respectively. The correlation between the residuals of the two models suggested the presence of other unmeasured common variables. CONCLUSIONS: The substantial correlation between traffic-related noise and NO(2), endorsed by common determinants, and the dependence of this correlation on complex local characteristics call for careful evaluations of both factors to ultimately assess their cardiovascular effects.
- Subjects :
- Urban Population
MESH: Air Pollutants
Air pollution
010501 environmental sciences
medicine.disease_cause
01 natural sciences
Biochemistry
MESH: Linear Models
Correlation
Cohort Studies
0302 clinical medicine
11. Sustainability
Statistics
030212 general & internal medicine
MESH: Cohort Studies
General Environmental Science
media_common
Air Pollutants
Confounding
Linear model
3. Good health
MESH: Urban Population
Motor Vehicles
Cardiovascular Diseases
Noise, Transportation
MESH: Motor Vehicles
Pollution
Meteorology
media_common.quotation_subject
MESH: Environmental Exposure
Nitrogen Dioxide
MESH: Nitrogen Dioxide
03 medical and health sciences
Linear regression
medicine
MESH: Spain
MESH: Cities
Humans
Cities
0105 earth and related environmental sciences
MESH: Humans
MESH: Cardiovascular Diseases
Environmental Exposure
Noise
[SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie
13. Climate action
Spain
Linear Models
Environmental science
Residence
[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie
MESH: Noise, Transportation
Subjects
Details
- ISSN :
- 10960953 and 00139351
- Volume :
- 111
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Environmental research
- Accession number :
- edsair.doi.dedup.....616fdc77360b1dd5bb15220a768c62c5