Food poisoning symptoms, which can start within hours of eating contaminated food, often include nausea, vomiting or diarrhea.Most often, food poisoning is mild and resolves without treatment.But some people need to go to the hospital. 1  Symptoms.ood poisoning symptoms, which can start within hours of eating contaminated food, often include nausea, vomiting or diarrhea.
Portsmouth, New Hampshire. For the city in Hampshire, England, see Portsmouth. Portsmouth is a city in Rockingham County, New Hampshire, in the United States. It is the only city in the county, but only the fourth-largest community, with a population of 21,233 at the 2010 census.
The largest decennial percent change was a 2 percent increase between 1970 and 1980; population declined by 21 percent between 1990 and 2000. The 2014 Census estimate for Portsmouth was 21,366 residents, which ranked 13th among New Hampshire's incorporated cities and towns. Population Density and Land Area, 2014 (US Census Bureau): 1,362.6 persons per square mile of land area, the third highest among the cities and towns. Portsmouth contains 15.7 square miles of land area and 1.1 square miles of inland water area.