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Table 1

Sampling sites.

Site Zabili Madajang Gamboké Bamdi Rong Yapala Tagobo-foulbe Pala Léré Binder Cement plant
Number of samples collected 1 2 2 1 1 2 1 2 4 1 2
Type of sample taken Soil bricks Soil bricks Soil bricks Soil bricks Soil bricks Soil bricks Soil bricks Gravel and sand Gravel and Sand Soil bricks Cement
Sampling place Houses near mining sites Houses near mining sites Houses near mining sites Houses near mining sites Houses near mining sites Houses near mining sites Houses near mining sites Pala pond Léré lake Houses near mining sites Cement plant

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