Os Exploradores da ESPAN

13 December 2023

Ribeira de Carenque

Quinta Nova-Queluz

Location coordinates: 38.71667 -9.13333

Group A

Average waste per m² in all riverside zones

63

Foreshore (Average waste per m²)

3.42

Backshore (Average waste per m²)

3

Riverbank crown (Average waste per m²)

2.85

Group B

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

131

Weight of all waste including plastic in kg

5.72

Group C

Flow velocity of the river (meters per second)

2.77

River width in m

18

Total number of floating waste

6

Larger Microplastics per 1,000 liters of river water

-

Larger Microplastics per m² of the riverbank

-