Sampling site

Sample label

Latitude

Longitude

Sample characteristic

Site description and activities performed around the site

Luilu river

Lsed1

S 10˚40'272''

(−10.74222222)

E 025˚22'195''

(25.420833333)

Sediment

Sludge and sediment collection from the riverbed by artisanal miners.

Lsed2

S 10°40'120''

(−10.70000000)

E 025˚22'028''

(25.374444444)

Sediment

Existence of a metal dike

Lsed3

S 10˚40'455’’

(−10.79305555)

E 025˚21'538'' (25.499444444)

Sediment

No human activity performed

Lsol4a

S 10˚40'131''

(−10.70305555)

E 025˚21'556''

(25.504444444)

Soil

Noah village garden: cultivation of tomato, cabbage and corn in rainy season

Lsol4b

S 10˚40'131''

(−10.70305555)

E 025˚21'556'' (25.504444444)

Soil

Noah village garden: cultivation of tomato, cabbage and corn in rainyseason

Lsed5

S 10˚46'715''

(−10.96527777)

E 025˚22' 041’’

(25.378055555)

Sediment

No human activity performed

Lsed6

S 10˚46'233''

(−10.83138888)

E 025˚21'738''

(25.555000000)

Sediment

Fishing and laundry

Lsed7

S 10˚45'927''

(−11.00750000)

E 025˚21'165''

(25.395833333)

Sediment

Fishing

Dilala river

Dsed1

S 10˚42'504''

(−10.91000000)

E 025˚28'999'' (25.744166666)

Sediment

Clothes and minerals washing

Dsed2

S 10˚42'543''

(−10.85083333)

E 025˚29'094''

(25.509444444)

Sediment

Minerals washing

Dsed3

S 10˚42'523''

(−10.84527777)

E 025˚29'184''

(25.534444444)

Sediment

Minerals washing

Dsed4

S 10˚42'426''

(−10.81833333)

E 025˚29'409''

(25.596944444)

Sediment

Minerals washing

Dsed5

S 10˚42'440''

(−10.82222222)

E 025˚29'727'' (25.685277777)

Sediment

Clothes washing