But he said levels in shark, swordfish, king mackerel and tilefish were three times higher than in fresh tuna.
The agency said levels in the River Nene in Northamptonshire had "risen significantly".
Air pollution experts say levels of NO2 in London are comparable to those in Beijing before it banned 50% of the cars.
Researchers in France said levels of lead in Roman drinking water were a concern, but were probably insufficient to cause widespread mental problems, or potentially drive up crime rates, through lead poisoning.
Floods minister Rory Stewart said rainfall levels in the flood-hit areas were unprecedented.
Earlier this year, regulators blocked imports of Evian water from France, saying bacteria levels in the water exceeded national standards.
After workers removed the camera Monday night,, officials said, radiation levels in the building quickly returned to normal.
The government says radiation levels in town have fallen to levels deemed safe following decontamination efforts, and on Saturday lifted the four-year-old evacuation order.
Walt Kelly, a geochemist with the Illinois State Water Survey at the University of Illinois at Urbana-Champaign, said chloride levels in waterways shot up during thaws and dropped again in the summer.
The Commerce Department said spending levels in January were less robust than previously thought, rising 0.4 percent rather than the original forecast of 0.5 percent.
