In her new documentary “There’s Something in the Water”, co-directed by Ian Daniel, the actress and activist focuses on the effects of environmental racism on black and indigenous communities in Nova Scotia. “In Canada, your postal code determines your health,” sociologist Ingrid Waldron says in the trailer for the film. “So we know that where you live has bearing on your well-being. Indigenous and black communities are the ones that tend to be located near hazardous sites.”