Using urban man-made ponds to reconstruct a 150-year history of air pollution in northwest England |
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Authors: | Ann L Power Ann T Worsley |
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Institution: | (1) Department of Geography, Natural Geographical and Applied Sciences, Edge Hill University, Ormskirk, Lancashire, L39 4QP, UK |
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Abstract: | A regional pollution history has been reconstructed for the borough of Halton (northwest England) from four urban ponds in
north Cheshire and south Merseyside, using environmental analyses of lake sediment stratigraphies. Mineral magnetism, geochemistry
and radiometric dating have produced profiles of pollution characteristics dating from the mid-nineteenth century to present
day. These pollution profiles reflect the atmospheric deposition of a range of pollutants over 150 years of intensified industry.
Distinct phases of pollution deposition and characteristics are identified reflecting: (1) intensification of industry in
the nineteenth century; (2) expansion of industry during the twentieth century; (3) post 1956 Clean Air Acts. This work promotes
the potential use of these pollution archives for use in epidemiology to better understand links between human health and
environmental pollution, especially for diseases with long latency times, where retrospective pollution exposure assessments
are important. |
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Keywords: | Atmospheric particulate pollution Environmental magnetism Geochemistry Lake sediments Retrospective exposure |
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