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A novel approach for mapping exposure to land cover at the small statistical geography level.

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Název: A novel approach for mapping exposure to land cover at the small statistical geography level.
Autoři: Garrett, Joanne K., Elliott, Lewis R., Lovell, Rebecca, Wheeler, Benedict W., Marshall, Tom, Kibowski, Fränze, Phillips, Benjamin B., Gaston, Kevin J.
Zdroj: International Journal of Health Geographics; 11/25/2025, Vol. 24 Issue 1, p1-16, 16p
Témata: LAND cover, ENVIRONMENTAL exposure, ECOLOGICAL zones, GEOGRAPHICAL positions
Abstrakt: Many studies linking spatial environmental exposures to health outcomes rely on small statistical geography units, such as Lower-layer Super Output Areas (LSOAs), to estimate exposure. However, these units commonly vary in size, particularly between urban and rural areas, leading to potential exposure misclassification. This study proposes a new method for better capturing environmental exposure at the small statistical geography unit level. Using the Living England Habitat Map as an example, we combined LSOA and postcode-level data to account for varying area sizes and mitigate edge effects. We compared our method with the typical approach, which calculates an average at the small geography unit level. Overall, our proposed method resulted in lower exposure to non-built-up areas compared to averaging across entire LSOAs, whereas exposure to built-up areas was higher by 8–10%. However, these patterns varied based on region, urban/rural classification, land cover type, and LSOA size class. We suggest that this proposed method offers a more consistent approach to estimating neighbourhood exposure to nature. [ABSTRACT FROM AUTHOR]
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Databáze: Complementary Index
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Abstrakt:Many studies linking spatial environmental exposures to health outcomes rely on small statistical geography units, such as Lower-layer Super Output Areas (LSOAs), to estimate exposure. However, these units commonly vary in size, particularly between urban and rural areas, leading to potential exposure misclassification. This study proposes a new method for better capturing environmental exposure at the small statistical geography unit level. Using the Living England Habitat Map as an example, we combined LSOA and postcode-level data to account for varying area sizes and mitigate edge effects. We compared our method with the typical approach, which calculates an average at the small geography unit level. Overall, our proposed method resulted in lower exposure to non-built-up areas compared to averaging across entire LSOAs, whereas exposure to built-up areas was higher by 8–10%. However, these patterns varied based on region, urban/rural classification, land cover type, and LSOA size class. We suggest that this proposed method offers a more consistent approach to estimating neighbourhood exposure to nature. [ABSTRACT FROM AUTHOR]
ISSN:1476072X
DOI:10.1186/s12942-025-00425-7