Sampling was carried out at 39 sites along agricultural/pasture
fields located in the vicinity of the chlor-alkali plant, as showed in
Fig. 1. Samples were collected:
- along the former effluent stream (“Vala de S. Filipe”)—fromsite 1 to
site 8,
- at the former effluent stream — site 9,
- away from the former effluent stream — from site 10 to site 13.