Metal survey samples map

Thank you to everyone who has contributed to the OPAL metals survey. We are still collecting results so please keep sending in your samples.

The map below shows the locations of all the samples we've received so far. We will be adding more information to this map in due course.

If you have sent in a mud sample from your lake or pond but can't see your contribution marked on the map, please contact the OPAL water team by emailing opalwatercentre@geog.ucl.ac.uk.

Map updated 7 September 2011

	100 or more surveys		Between 10 and 99 surveys		Fewer than 10 surveys		Individual survey result

Please be patient while survey data loads.

Thank you to Guest for the latest survey results.