índex ultraviolat a Essex (5 mi.) | índex ultraviolat a Annisquam (7 mi.) | índex ultraviolat a Plum Island (Merrimack River Entrance) (8 mi.) | índex ultraviolat a Newburyport (8 mi.) | índex ultraviolat a Rockport (10 mi.) | índex ultraviolat a Gloucester Harbor (10 mi.) | índex ultraviolat a Salisbury Point (11 mi.) | índex ultraviolat a Merrimacport (13 mi.) | índex ultraviolat a Hampton Harbor (13 mi.) | índex ultraviolat a Salem (14 mi.) | índex ultraviolat a Riverside (Haverhill) (14 mi.) | índex ultraviolat a Lynn (19 mi.) | índex ultraviolat a Gosport Harbor (Isles Of Shoals) (21 mi.) | índex ultraviolat a Jaffrey Point (24 mi.) | índex ultraviolat a Squamscott River Rr. Bridge (25 mi.) | índex ultraviolat a Gerrish Island (25 mi.) | índex ultraviolat a Fort Point (25 mi.) | índex ultraviolat a Chelsea (25 mi.) | índex ultraviolat a Portsmouth (25 mi.) | índex ultraviolat a Seavey Island (26 mi.)