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Fig. 1 | Population Health Metrics

Fig. 1

From: Linkage of national soil quality measurements to primary care medical records in England and Wales: a new resource for investigating environmental impacts on human health

Fig. 1

Map of G-BASE sample locations in England and Wales. Black areas denote urban centres where samples are taken at a density of 4 per km2. Grey areas denote rural G-BASE areas, with a sampling density of 1 per 2 km2. Grey dots indicate locations of NSI(XRFS) samples, at an overall density of 1 per 25 km2. Red lines circumscribe the English Strategic Health Authority catchment areas. Contains Ordnance Survey data © Crown Copyright and database rights [2015]

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Population Health Metrics

ISSN: 1478-7954