8ºD Escola Básica Nun'Álvares

25 January 2023

Rio Tejo

Praia Fluvial do Seixal

Location coordinates: 38.6441667 -9.105277777777777

Group A

Average waste per m² in all riverside zones

2.71

Foreshore (Average waste per m²)

1.62

Backshore (Average waste per m²)

3.95

Riverbank crown (Average waste per m²)

2.57

Group B

Total number of waste items found (including single-use plastic)

109

Weight of all waste including plastic in kg

3.5

Group C

Flow velocity of the river (meters per second)

0.24

River width in m

200

Total number of floating waste

Larger Microplastics per 1,000 liters of river water

Larger Microplastics per m² of the riverbank

116

¡NO TE PIERDAS NINGUNA DE LAS CAMPAÑAS DE LOS PIRATAS DEL PLÁSTICO!