Online Oxford English Dictionary (the full version of the OED, available through your public library if you're lucky, as we are here in the county of Devon) has several meanings for nauseous, including 'offensive', 'repellent', 'loathsome', all of which are not right! But they also say 'of a person, the stomach, etc: inclined to sickness or nausea; squeamish'. So NPG is let off the hook! And that's quite a catchy statement they've used - also good to see that Nelson still tops the polls.
Lesley
http://www.adkinshistory.com