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Socioeconomic status and environmental noise exposure in Montreal, Canada.

Dale LM, Goudreau S, Perron S, Ragettli MS, Hatzopoulou M, Smargiassi A - BMC Public Health (2015)

Bottom Line: This study's objective was to determine whether socioeconomically deprived populations are exposed to greater levels of environmental noise.Indicators of socioeconomic status were correlated with LAeq24h noise levels estimated with a land-use regression model at a small geographic scale.We found that noise exposure was associated with all socioeconomic indicators, with the strongest correlations found for median household income, proportion of people who spend over 30% of their income on housing, proportion of people below the low income boundary and with a social deprivation index combining several socio-economic variables.

View Article: PubMed Central - PubMed

Affiliation: McGill School of Environment, McGill University, Montréal, QC, Canada. laura.dale@mail.mcgill.ca.

ABSTRACT

Background: This study's objective was to determine whether socioeconomically deprived populations are exposed to greater levels of environmental noise.

Methods: Indicators of socioeconomic status were correlated with LAeq24h noise levels estimated with a land-use regression model at a small geographic scale.

Results: We found that noise exposure was associated with all socioeconomic indicators, with the strongest correlations found for median household income, proportion of people who spend over 30% of their income on housing, proportion of people below the low income boundary and with a social deprivation index combining several socio-economic variables.

Conclusion: Our results were inconsistent with a number of studies performed elsewhere, indicating that locally conducted studies are imperative to assessing whether this double burden of noise exposure and low socioeconomic status exists in other contexts. The primary implication of our study is that noise exposure represents an environmental injustice in Montreal, which is an issue that merits both investigation and concern.

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Related in: MedlinePlus

Map of Montreal Island.
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Fig1: Map of Montreal Island.

Mentions: Our study took place on the island of Montreal, where we examined neighborhood scale social and physical environmental characteristics. The island has an area of 500 km2 that contains 19 boroughs. Road traffic among the several expressways throughout the city is heavy, particularly along the number 13, 15, 20, 25 and 40 highways, which span the whole island. A number of railway tracks also reach an extensive portion of the island. There exists a large international airport in the Dorval region (to the West of the Island), and in certain areas, particularly in the eastern portion of the city, there are clusters of industrial activity. Whereas the most densely populated areas are located around the city center and between highways 13 and 25, the territory west of highway 13 is more suburban in character with low residential density; the area east of highway 25 is mainly of low and medium residential density (Figure 1).Figure 1


Socioeconomic status and environmental noise exposure in Montreal, Canada.

Dale LM, Goudreau S, Perron S, Ragettli MS, Hatzopoulou M, Smargiassi A - BMC Public Health (2015)

Map of Montreal Island.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4358710&req=5

Fig1: Map of Montreal Island.
Mentions: Our study took place on the island of Montreal, where we examined neighborhood scale social and physical environmental characteristics. The island has an area of 500 km2 that contains 19 boroughs. Road traffic among the several expressways throughout the city is heavy, particularly along the number 13, 15, 20, 25 and 40 highways, which span the whole island. A number of railway tracks also reach an extensive portion of the island. There exists a large international airport in the Dorval region (to the West of the Island), and in certain areas, particularly in the eastern portion of the city, there are clusters of industrial activity. Whereas the most densely populated areas are located around the city center and between highways 13 and 25, the territory west of highway 13 is more suburban in character with low residential density; the area east of highway 25 is mainly of low and medium residential density (Figure 1).Figure 1

Bottom Line: This study's objective was to determine whether socioeconomically deprived populations are exposed to greater levels of environmental noise.Indicators of socioeconomic status were correlated with LAeq24h noise levels estimated with a land-use regression model at a small geographic scale.We found that noise exposure was associated with all socioeconomic indicators, with the strongest correlations found for median household income, proportion of people who spend over 30% of their income on housing, proportion of people below the low income boundary and with a social deprivation index combining several socio-economic variables.

View Article: PubMed Central - PubMed

Affiliation: McGill School of Environment, McGill University, Montréal, QC, Canada. laura.dale@mail.mcgill.ca.

ABSTRACT

Background: This study's objective was to determine whether socioeconomically deprived populations are exposed to greater levels of environmental noise.

Methods: Indicators of socioeconomic status were correlated with LAeq24h noise levels estimated with a land-use regression model at a small geographic scale.

Results: We found that noise exposure was associated with all socioeconomic indicators, with the strongest correlations found for median household income, proportion of people who spend over 30% of their income on housing, proportion of people below the low income boundary and with a social deprivation index combining several socio-economic variables.

Conclusion: Our results were inconsistent with a number of studies performed elsewhere, indicating that locally conducted studies are imperative to assessing whether this double burden of noise exposure and low socioeconomic status exists in other contexts. The primary implication of our study is that noise exposure represents an environmental injustice in Montreal, which is an issue that merits both investigation and concern.

Show MeSH
Related in: MedlinePlus