indice ultravioletti a Annisquam (3 mi.) | indice ultravioletti a Rockport (4 mi.) | indice ultravioletti a Essex (6 mi.) | indice ultravioletti a Plum Island South (10 mi.) | indice ultravioletti a Salem (13 mi.) | indice ultravioletti a Plum Island (Merrimack River Entrance) (16 mi.) | indice ultravioletti a Lynn (18 mi.) | indice ultravioletti a Newburyport (18 mi.) | indice ultravioletti a Salisbury Point (20 mi.) | indice ultravioletti a Hampton Harbor (21 mi.) | indice ultravioletti a Merrimacport (22 mi.) | indice ultravioletti a Boston Light (23 mi.) | indice ultravioletti a Riverside (Haverhill) (23 mi.) | indice ultravioletti a Deer Island (South End) (24 mi.) | indice ultravioletti a Chelsea (24 mi.) | indice ultravioletti a Hull (25 mi.) | indice ultravioletti a Gosport Harbor (Isles Of Shoals) (26 mi.) | indice ultravioletti a Nantasket Beach (Weir River) (26 mi.) | indice ultravioletti a Cohasset Harbor (White Head) (26 mi.) | indice ultravioletti a Amelia Earhart Dam (Mystic River) (26 mi.)